046 4 I bought this Eneloop for almost a year now and this is the first time I fully tested these batteries . I was so disappointed with the Sanyo 2700 MAh that I returned them and now I can say for sure that this Eneloop will replace them . The Sanyo 2700 had some premature death from experience and some of them will no longer hold charge even after few days . Thomas Distributing ( very good company to deal with ) sent me a replacement , 16 batteries total and after I received them , I charge and conditioned several times . To my disappointment , the new ones do not hold the charge 100% after few days , they all went 80% and 1 even went below 60% . I returned them again after further testing . Now to this Eneloop , I shot 140 flash pictures on my Olympus Camedia C - 5050 on a used Eneloop and it had 80% left according to my ZTS tester . This cannnot be true , so I put it to my Nikon Speedlight SB - 800 and set it to manual to have consistent usage . To my surprise I fired 110 flashes with no sign of dying . I have to stop , my flash is getting hot . The batteries were warm when I took it out and the ZTS showed 60% left after this testing . I am not an expert on batteries , I am just a user like everyone else , but these batteries are GOOD . I think I am going to order more of this from Thomas . Forget those 2700MAh . They are no good if they can't keep the charge . I will probably try some of the new low-discharge also , but for now , I'm sold to Eneloop .
006 4 I was initially skeptical when I bought these but figured it couldn't hurt . I needed a set for my Nikon SB - 600 flash . The 2700 mAh Energizers I had performed just fine until they sat in the flash for a month , at which point I had to carry a spare set just in case . I charged the Eneloops , placed them in the flash and had my first call a month later . They worked wonderfully . I went the whole evening without needed spares . I used them again two months later and got a solid hour or two before they were exhausted . They easily lasted 2 - 3x as long as the Energizers and where in the flash for 2x as long . All-in-all , they've performaed very well . They may not maintain 85% of their charge after one year at room temp ( as one reviewer suggested ) but they certainly sit in the bag far better than my others . I am slowly phasing out all my non-Eneloops as a result . . .
057 4 Guess what , I opened the box , pulled the batteries out , and have been using the batteries for well over a week taking hundreds of pics with my new
Nikon SB - 600 Speedlight Flash for Nikon Digital SLR Cameras
. What's even more amazing , is that I likely can do this for a few more weeks . Try that with any other batteries and what you'll get are empty batteries that may get damaged by using them without charging them first . OK you say , I don't need to use them right away , well don't think of charging them and throwing them in your camera bag , as by the time you need them , you'll need to charge them again , as most nimh batteries lose 1 - 2% of charge a day - - from just sitting around ! Don't you buy rechargeable batteries for their efficiency ? Well when you have to constantly recharge them , that's not efficient !
These batteries are the real deal !
193 4 What can I say ? These eneloops are awesome ! I got tired of buying AA batteries for my Nikon Speedlights and the recycle times of the speedlights near the end of the alkaline battery life was really long . . so I never even finished using the battery life of the normal alkaline AA's that I used to use . . . I would throw them out and use fresh ones . . Then I heard about these and thought I would give them a chance . . well it's been almost a year and I have to say that these are the best batteries I ever used in anything ! They have replaced ALL of my AA battery needs . . from my wireless mouse to my entertainment system remotes ! And of course the reason I got them for my Nikon Speedlights ! I have 2 SB - 600 ' s and 1 SB - 800 and the lasting power of these are amazing ! Even when the battery life gets low the recycle time of the flash is the same as a freshly charged set ! Amazing !
But the thing I love most about these batteries is the fact that you can charge them and store them and they hold their charge until you're ready to use them .
067 4 As an avid flashlight enthusiast , I expect more out of my batteries than most people both in high current drain applications and long term efficiency , and these batteries can handle both - their ability to maintain a large portion of the charge for an entire year blows away my old Energizer 2500mah NIM。 's ( typically 3 weeks until theyre completely drained , just sitting on a shelf ) .
Ever tried to use your digital camera just to find that the batteries were dead ? Buy these - and you'll never have that problem again
095 4 I received them this week and was surprised at the date on them and more so that when I put them in my remote they worked perfectly without recharging them . I think the advertising is true . I'll add an addendum if I find they do not last long or there is some other issue . As for now , I'm impressed .
096 4 I bought these batteries for my Canon S3 . They last for quite awhile . The good thing about them is that they hold their charge when the camera isn't in use . I highly recommend these batteries .
140 4 I am very impressed with this product , especially with the duration for which the batteries hold their charge . I use them for my digital camera . Even when I haven't used the camera for a couple of weeks , I can pick up the camera and still have a full charge .
192 4 I usually don't like rechargable batteries but I have been pleased with these . They came fully charged from the factory , and have held their charge well . I used them in the Tekkron portable charger to charge my Iphone . I recharged the phone from 10% to full charge three times with no problems .
199 4 These batteries are the best . You can use them in anything from cameras on down to remote controls , and they don't suddenly wind up dead in a week like normal rechargeables . I highly recommend them .
209 4 The package came in perfect shape . The batteries were charged for the most part . They may have been in storage for a while . It seems like a well made product in structure . The batteries do seem to last longer then others I have used .
078 4 Saving money in your pocket and sparing the environment by cutting down on what we dispose of in harmful chemicals - well who wouldn't be interested in that ?
But when you take into consideration that these Eneloop batteries actually do what they claim - hold a charge for a long long time , behave at least as well as disposable alkalines , and recharge fast - it's too good to pass up .
They have powered remotes , cameras , recorders of mine , reliably and without any interruption . Spares are stored away and can be used good as new , and as others report , will hold most of their charge even months down the line .
In a better world , these would replace all disposable power cells for good .
016 4 My biggest problem with rechargeable batteries for the many years I have been using them is that they normally loose charge at a fairly rapid rate while sitting waiting to be used . GE / Sanyo solved this problem and the result is fantastic .
We have been using these in a Pentax digital SLR and are thrilled with the long in use lifetime and with not needing to worry if the camera sits idle for several weeks .
The only ones to buy IMO !
028 4 This review is from :
Sanyo eneloop Travel Power Pack Kit ( Electronics )
Eneloop batteries are really great , but this kit is really expensive . My local Cost * * store sells a similar kit with a charger and 12 batteries ( twice as many batteries ) for $26 .
063 4 These batteries have worked well in every application where we have tried them . At about $2.50 a piece , they need to be recharged only a handful of times to be cost effective , and keep the toxic waste ( of disposable ) batteries out of the lanfills .
073 4 These battries live up to what Sanyo says . This is the first time ever that I don't feel I may run out of batteries or that the batteries that I have put away are not going to respond .
Each re-charge will allow me to take a lot more pictures than regular alkaline batteries yet they behave like alkaline batteries with regards to the discharge rate .
The only Cons is that they are still expensive compared with the price of alkaline batteries .
In summaary , Eneloop batteries is the way to go , not only for efficiency but for conservation of resources .
091 4 I asked some people who use a lot of re-chargeable batteries what was the best choice . Most said to go with eneloop , and one person was emphatic : stick with something that says Pre-Charged , no matter what numbers they throw at you .
They were right - - these batteries hold a charge for as long regular disposables . Look no further , these are the ones you want .
114 4 As a mom whose children have A TON of electronic toys . . . these batteries are a godsend . In the past , I have been able to fill up a gallon size ziploc bag with my drained alkaline batteries . Now , I just throw the Eneloop batteries into any toy that needs one . I started using them because I was curious about the fact that they are fully charged right out of the wrapping . It is true , and they work like a charm .
Now , I don't have to tell the kids that they need to wait while I charge up some batteries , and I am no longer having to lug bags of old batteries to be disposed of as hazardous waste . Happy kids + happy environment = happy mommy !
163 4 I use these batteries in my electric toothbrush . After a few months of use , I noticed these batteries last much longer than the Duracell alkalines that I used to use .
After four months of regular use , I've only had to change the batteries once . They've lasted so long , I haven't even gotten the opportunity to try out the charger yet .
183 4 Eneloop rechargable batteries are the only ones I know of that will maintain their charge on the shelf for a year or more . Most previous rechargables always seem to be dead when you need them . You always have to stop what you are doing and wait for a set to recharge before continuing .
This product finally makes going green with batteries a sensable alternative .
The one and only problem I have with this product is the availability . One often has to search high and low to find a retailer that sells them .
You can always find them on the internet , but often shipping and handling costs make an already premium priced product less attractive .
[ . . . ] .
186 4 I have used Eneloop batteries for over two years now . They perform as claimed . I use them in a lot of remote controls that basically have long shelf life with some activity . Last way longer than regular cells . The ones I charge up are ready for use as soon as the new ones wear out . A Win Win situation in my book . Recommend these batteries to anyone who wants a great rechargeable battery ! Get off the throw away cycle !
Ron
187 4 I bought these batteries , along with 2 other low discharge brands , from Thomas Distributing . Thomas Distributing has a great selection of all types of batteries , including camera batteries if you need to get new batteries .
I use these on an almost daily basis for my radio senders for photo equipment . Out of the 3 brands I bought , the eneloops last the longest in the radio senders . If I need more rechargeable batteries in the future , I will definitely be buying this brand .
216 4 I picked up a set of the batteries and charger and so far they have been working well . Out of the package they did have a charge and I shot for awhile with them around the house , but did charge them prior to leaving the house to make sure they were fully charged .
I have not run the batteries down far enough to miss any shot yet - they have lasted whenever I have my camera out .
Good solid purchase and I am happy to no longer add as much to the garbage by using disposable batteries .
102 4 Casual picture takers take a few pictures at a time and have had trouble dealing with the quick self discharge rate of traditional NiMh batteries . You had batteries fully charged , took some pictures , put away the camera for a week or two and wanted to take pictures again , only to find the batteries were almost dead and the backup batteries were not much better . I have a four year old Kodak digital camera and didn't use it often because of this problem . After I bought the eneloops , the camera started to shine again . Complaints about this battery seems to come from power users who use up batteries in a few hours and demand highest possible mAh . But for casual users , an eneloop at 2000 mAh has effectively much higher usable power than a traditional NiMh at 2500 mAh .
I bought the batteries from a local hhgregg store , which has a cheaper price . The time marked on package indicates they were already a year after manufacture . The batteries of course had lost some charge , but they still could be used to take a few pictures before they needed recharging . That tells me something about these batteries . To casual picture takers , these batteries are a great solution .
011 4 These 2100 mAh rechargeables are better than 2700 ones - Why - because the regular but higher capacity ones lose charge so quickly , within 10 days they have less charge left in them than the eneloop type .
I had some doubts how they would perform in the real world - in particular , their peak current capability ( which will determine how well they actually work in a digital camera ) . Turns out - they do better than the regular ones . While my 1600 mAh panasonics gave approx 40 - 50 shots consistently , the same digital camera now gives me approx 100 shots with these eneloops . Suddenly my mom's camera which ate up battery very quickly - has become a great camera from the battery change . If she's happy , so am I . Incidentally - the amazon price is also very good - you can also try getting the ones with a charger - this eneloop charger charges batteries INDIVIDUALLY . This is critical - no matter which charger you buy - get ones that charge batteries individually and not in pairs . Also remember to always mark your batteries , so you don't mix up charged and discharged batteries when charging them . I've found this to be a common problem with many users .
017 4 A friend in Japan sent me some eneloop cells when they were first introduced . They tested out very close to their rated capacity of 2000 mAh . I then conducted some self discharge tests . I fully charged the cells and set them on a shelf in my house . I checked them at 30 days , 90 days , and 180 days .
After 6 months of room temperature storage they had 86% of their initial capacity .
Very impressive . . .
118 4 I bought these batteries almost 2 years ago .
I use them for the Xbox 360 .
After 2 years they still work perfectly , and so does the charger .
They dont event take too long to charge ! What a $ $ $ $ saver these are !
I ordered another set for my brother , for myself . Next time I need some re-chargable batteries , I am definetly buying these . I cant beleive after 2 years ago they work as if they were brand new . VERY impressed .
143 4 At $15 for a 4 - pack it's a good deal .
If it ever goes back to $10 / 4pack , buy em all , stock up , give em away !
I'm never going back again to those old crappy batteries ! I bought these as an alternative to the Xbox 360 controller charge kit , and have no regrets . Now I put them in everything I can . . . that I think I can get the batteries back from ! The biggest issue is losing them .
Why bother buying alkaline ? The hype is true enough . Time to move .
165 4 We got these batteries to use in our Wii and XBox 360 controllers and they work great ! They seem to hold a charge as long as the proprietary battery packs , yet they are a lot cheaper .
The biggest problem with normal rechargeables is that every time I picked up a controller to play the batteries were dead . With these that is not an issue at all .
I highly recommend these .
182 4 When I received this product from BlueProton , a seller of Amazon , I saw a discrepency on the battery and its package . The printing on the battery says 800mAh , and the printing on the package says 2000mAh . The quality looks a little bit low ( print is a little bit blur ) . I used to buy Eneloop batteries from Costco , and I never seen this kind of discrepency .
So , yes , it is cheapest you can get , but I doubt it is really the genuine Sanyo Eneloop . Time will tell the truth . Buy at your own risk .
197 4 Solid high quality batteries .
I did a capacity test of all the batteries using my LaCrosse charger and most came out around 1940mAh , one was 1900mAh , and one was 2000mAh . Sanyo states the batteries as being 2000mAh with a minimum charge of 1900 , so I guess they are telling the truth , except that I was hoping ' most ' of the batteries would be at 2000 , because from what I measured the advertised capacity should be listed as 1940 instead . . .
206 4 some of the other brands of rechargeables ( energizer , duracell , etc ) have inadvertently gotten thrown away around here because despite being labeled ' rechargeable ' the brand-labeling makes them look like their alkaline disposable cousins that weve thrown away ( recycled actually ) for so long .
these stand out and everyone knows they go back in the charger .
they seem to hold the charge they claim overall . most of them test at about 1800mAh when i first get them ( who knows how long they sit in the warehouse ) but after charging and testing they hold a little bit over the advertised 2000mAh .
124 4 I found these batteries by reading customer opinions . ( That's why I take time to rate stuff . It helps the next guy ) I have tried many different batteries . It seemed I was always rotating batteries . Camera , charger , camera . A real pain . And you get ready for that big one time picture and the camera stops you cold and says Batteries Low . I thought that was just the deal until I bought these . I put them in the camera right out of the package weeks ago . Over a hundred pics . Using zoom , auto , flash . I just picked it up and snapped half a dozen for grins and chuckels and it worked fine , and the flash is still hot . I have no doubt these are the best for a camera user . If you are a pro they last longer , just more dependable . If you are like me and the camera may sit for weeks they are great because they are still hot . I bought a bunch and left four in a drawer just to see how they work a year from purchase . Oh yeah . The really cool part was they were cheaper . And I bought their charger because I don't know that yesterdays charger is set to charge these hotter batteries . I wish I could find one that had a real meter that would show actual numbers on a gauge . Not , orange , yellow , green . So far these have been the best I have found . That's after at least three different brands and maybe 50 battereies . Three different chargers .
108 4 Found a web page ( don't know where it is now ) where someone tested these out and wrote to Sanyo during his tests while he was trying to verify their claims . Turns out for long term storage , they hold their charge much better in the freezer . I'm no engineer though . I am converting to 100% eneloop . I think these things are amazing and am recommending them to everyone I meet .
129 4 Right now I am using Sanyo Eneloop 2000 mah for my Pentax K-m / K2000 . I bought the 4 pack with charger and another 4 pack alone . I have taken about 400 shots with my first set of 4 Eneloops so far and the batteries are still running really good with more than half of its capacity left . I would say get Sanyo Eneloops over other batteries because they are rechargeable and have a slow self-discharge rate . Although it is 2000 MAH , it will last a good amount of time . My Energizer Lithium's only lasted less than 800 shots and it's non-reusable , I hear people praising of it going up to 1200 shots but to me it's not worth it . Get the Sanyo Eneloops because you save so much more money because they'll last a long time and can be re-used .
The charging rate for the Sanyo's are pretty slow , it'll take about 8 hours to fully charge the empty Eneloops . So if you own a camera or something that uses 4 batteries , make sure you buy another 4 pack alone so you have a total of 8 batteries . That way you can swap them out so you can use one set while another set is in the charger . Mark the first set of batteries with a permanent marker so you don't mix-match the sets .
Don't compare Eneloops to regular rechargeable batteries . Eneloops are known as LSD ( Low Self-discharge ) batteries . They are not like regular rechargeable . Although they have 2000 mah compared to other rechargeable with higher mah , the Eneloops tend to last longer due to it's LSD capability . You can tell which ones are LSD and which ones are not , check the package and make sure it says PRE-CHARGED , meaning the rechargeable battery is ready-to-use right out of the package . Regular batteries don't say Pre-charged because they can't stay in the shelf long enough before dying , while LSD batteries like Eneloops will go on forever and even over a year and still keep charge .
I still prefer Sanyo Eneloops as the best LSD batteries to buy because Sanyo were the first ones to come out with it , and more K200D and K2000 / K-m owners uses them than any other LSD batteries .
035 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
These batteries solve the DOA problem of Sony AA NMH batteries .
Of the 5 sets of sony batteries only two will hold a charge the
camera will operate with . . . . but will light a flashlight for hours .
It is almost like the sony camera does a self-test drawing max current at
startup .
Whatever the problem the Eneloop batteries cure it .
I already had 4 . . . these 4 give me enough for the battery grip of the new
canon rebel XT i bought .
GREAT BATTERIES
036 4 These batteries solve the DOA problem of Sony AA NMH batteries .
Of the 5 sets of sony batteries only two will hold a charge the
camera will operate with . . . . but will light a flashlight for hours .
It is almost like the sony camera does a self-test drawing max current at
startup .
Whatever the problem the Eneloop batteries cure it .
I already had 4 . . . these 4 give me enough for the battery grip of the new
canon rebel XT i bought .
GREAT BATTERIES
080 4 I purchased these batteries because I was sick and tired of having my camera die every time I went to use it , and not being able to find batteries that hold a charge . A digital camera , which is the only thing I use these batteries for , is VERY demanding of batteries and takes a great deal of power to function . I researched the best rechargeable batteries for use in digital cameras , and this is what I was recommended to . Four batteries AND a charger for less than $20 is a GREAT deal , because in the stores four rechargeable batteries from a brand like Energizer or Duracell ( both of which I have used and ceased to hold a charge after a few months of use ) would cost at least $15 .
I have owned these batteries for a little over a month , and so far I couldn't be more satisfied with their performance . The fact that they come pre-charged was a HUGE benefit , as they arrived the day before I took a two-week vacation . One set of the batteries ( two of them ) powered my digital camera for the entire vacation and so far I have only gone through both sets once and I have charged the second set once and am currently using them . In other words , I am on my third charge cycle in total , and thus far I have taken almost 1000 pictures with my camera . This is with significant use of the LCD screen on my camera , which uses much more battery power than powering the flash or the actual taking of the picture . Only time will tell how long these batteries will continue to hold such a significant charge , but at this point they have out-performed all of my expectations .
084 4 These DO keep most of their charge for a year or so .
With normal rechargeable batteries I would often go to use something
with them in to find the batteries dead from SELF DISCHARGE . : (
That is the main reason that I would not use rechargeable in many devises .
With the event of the LSD ( low self discharge ) batteries I have very little
use for disposable alkalines AND NO use for regular NMH batteries .
I do not know why anyone would buy regular NMH batteries when these are now available .
175 4 I own close to 100 of these eneloop batteries . I have them in kids toys , flashlights , smoke detectors , remotes , wireless mice / keyboard and in three different digital cameras . I have used these since 2006 .
I had only one bad experience in 3 years ( 2009 review ) . I put charged batteries into my Canon 590IS . Upon arrival at my 3rd childs kindergarten graduation the camera was saying low battery . I reinstalled the eneloops , but still the same error . Later in the event , my camera started working and reading full power.I think that there was a glitch in the camera . It has happened only once .
I have had to throw one battery out . It leaked , I think it was dropped too many times . BE CAREFUL DO NOT DROP .
I have bought these from Amazon and [ . . . ] . The [ . . . ] set ( 4 AAA + 8 AA ) comes with a charger and adapters for C and D batteries for about 25 - 30 dollars . I tried the D adapters to run a fan . It lasted about 3 hours , a Duracell D ran the same fan for 8 + hours.So I will still buy disposable c and d's but never a AAA or AA . I used to buy a case of them ( Duracell 36 pack ) every 6 months .
Some of the Eneloop sets I bought came with a charger that will work on 120 or 240 volts . Just look at the back of the charger and it will read 100 - 120 volts or 100 - 240 volts.So I have a charger if I ever travel out of the country ( someday ? ) .
These batteries went with us on our big family vacation to southern california in fall of 2008 . We took 100s of photos . We hit Legoland , Seaworld , The San Diego Zoo , Universal Studios and Disneyland last . On the last couple of days the batteries finally required a charge . Yes , we took a charger with us and had extra batteries ( and extra SD cards ) in our camera cases .
I wish they made c and d cells and a 12 volt charger for use in vehicles . Other than that the best rechargable out there . Would give 6 stars for saving us from all those disposables .
153 4 This product is the best invention since sliced bread ! ! I kid you not ! ! ! My one and only regret is that I didn't buy these batteries 6 months ago when I bought my Wii . We have 4 Wii remotes that receive a moderate amount of use ( 2 to 4 hours and sometimes a lot more ) at least 4 or 5 days a week . I bought this 4 remote rechargeable battery system which worked OK . I was recharging the Wii's rechargeable batteries daily . These batteries may cost a few pennies more but last a lot longer and hold a charge longer when not in use . I don't have to stop playing a game to recharge a battery any more . Now I only recharge the batteries once or twice a week under the same playing conditions .
184 4 i have owned tons of different rechargeables over the years ( RC car racing fan ) pretty much every type and every brand . . . and these are probably in the top 2 or 3 ever . they lasted a whole week in my digital camera with very heavy use on a vacation to sea world San Antonio ( i now have a thousand pics of dolphins and shamu . . ) i definitely recommend these . .
159 4 It does a decent job . The only problem is , when i fully charge this batteries and insert them to my controller , the controller shows that the power is 3 / 5 . That's the only reason i gave it 4 stars instead of 5 . But overall , the product is much cheaper then outside stores , as in Radio shack they where $20 .
089 4 These batteries and charger have made a huge difference in my digital camera , and ultimately , my wallet . Regular batteries died all to quickly and now an overnight charge has me ready to take hundreds of pictures with lots of flashes . Good product ! ! !
Mark S
Raleigh , NC
107 4 These batteries are just as claimed . They are ready to use and they help save the environment because they reduce waste .
178 4 I ordered an 8 pack of these batteries and they came in a plastic baggy with no original manufacturer packaging . I contacted the seller about this and they called it bulk packaging and said that the description of the product indicates this . So far I have found no indication of bulk packaging in the description of this product . They would have been better off to say these batteries have been extensively tested .
098 4 Really like these batteries . They last a long time and hold there charge well . I was able to use right out of the box with great results . Don't get hung up on the 2000 mAh rating as they out perform my other 2650 mAh rechargeables . They truly work as advertised . Very pleased .
109 4 I wanted to buy rechargeable batteries for our new baby's toys , including a mobile which I had heard used up batteries quickly . I purchased these batteries based on the reviews and it was well worth the buy . The batteries lasted a long time with the mobile . We used the mobile for 30 - 45 minutes a day and the rechargeables lasted about 3 - 4 weeks .
116 4 These new eneloops are very nice for the mere fact that I don't have to worry if my rechargeables are dead or not . Wish they had a higher amp hour rating , but overall I am happy .
139 4 These batteries really work and make my life easier to manage . The fact that they stay charged is the biggest thing I know when I put them in the camera they will be working for me .
141 4 These eneloop batteries are amazing ! I use them in all of my kids ' toys . . . they're ready to use , they hold their charge for over a year , and there's PLENTY of power to power any toy or digital camera ! The point of the battery is that it's ready to use , and holds its charge . . . and they live up to that claim ! Sanyo is still the battery leader !
161 4 I will only buy these rechargeables from now on . They are the only ones powerful enough for my Canon 580 flash .
191 4 I have consistently had problems with rechargeable batteries - they generally don't last long before needing recharging , and recharging takes a long time . I have used these for MONTHS and still have not had to recharge them . They have proven to be very reliable and the best set of batteries I have had . The charger is light in weight which makes travelling with it a snap .
185 4 These batteries are great ! Had a lot of problems with a digital camera . Got these batteries , charged them up , stuck them in and all the problems went away . Wish I would have got them when I bought the camera . Have taken scads of pictures and the batteries are still fine .
041 4 I purchased the GE / Sanyo Eneloop batteries . They are pricey , but I took over 100 flash photos and did not get a low battery light on my camera . I am considering buying more for other devices like my cordless mouse and keyboard .
074 4 I used these batteries on my vacation . It was great ! The rechargeable batteries worked right out of the package . I had more shots than with alkaline batteries . All my worries went away about the batteries going dead and missing precious vacation pictures .
To find out the better performer battery
Items :
1 . Four pieces of Sanyo Eneloop AA 2000mAh NiMH Battery
2 . Four pieces of PowerEx Imedion AA 2100mAh NiMH Battery
3 . Nikon Speedlight SB - 800
4 . Remote Flash Trigger
5 . Process recording device ( Sony DSC-P10 )
Methodology :
1 . Fully Charge the battery
2 . Insert battery into Nikon Speedlight SB800
3 . Nikon Speedlight SB - 800 set to M 1 / 4 - oEV
4 . Fire the Speedlight as soon as it is ready ( when the red light is on )
5 . Repeat step #3 until the battery is completely depleted
6 . Record the following :
a . X number of shots per minute after X number of shots
b . Total shots per charge
7 . Repeat the process with next set of battery
To ensure both battery both are in identical optimal condition , I bought both new set of Eneloop and Imedion . Both sets are new and fully charged for 8 hours as recommended by manufacturer for initial use with the same PowerEx MH-C204W Travel Charger before begin the test .
Please refer to the graph in my site .
I started off with Eneloop with a recorded blazing fast 60 round per minute ( rpm ) . It drops to 53rpm after the first 100 shots , and then it drops further to 52rpm after 200 shots . It stabilized at average of 45rpm from 300 shots to 1300 shots . It drops to 39rpm at 1400 shots and drops further to 37rpm after 1500 shots . Finally it drops sharply but still managed to squeeze a total recorded 1564 shots . Pretty impressive for first round .
I followed by Imedion immediately . At the initial minute it has a noticeable lower refresh rate compared with Eneloop and I recorded a 51rpm for the first minute , lower than Eneloop 9rpm . It then dropped 20% performance to 42rpm after the first 100 shots . After 200 shots , it stabilized at average of 39rpm from 200 shots to 1200 shots ( compared to 45rpm Eneloop ) . It drops slightly to 36rpm after 1300 shots to 1500 shots . Then it drops further down to 17rpm after 1600 shots . Finally it is completely depleted at 1660 shots .
Conclusion :
Eneloop completed at 1564 shoots and Imedion completed at 1660 , approximately 100 shots more than Eneloop , which is pretty much expected as it is a 2100mAh vs 2000mAh , with approximately 5% extra power . For a fair comparison , I only benchmark up to 1500 shots , which is already beyond what average number of photos a person can take on a whole day event ( with speedlight )
On cycle performance point of view , Eneloop out performed Imedion from 4rpm to 14rpm with an amazing everage of 6rpm on a consistant performance .
In this experiment , I concluded that the Sanyo Eneloop is a better performer than PowerEx Imedion , at least in speedlight point of view .
[ . . . ]
001 4 [ Updated Oct 24 , 2008 ]
My original review on the Sanyo eneloop NiMH cells was written nearly two years ago . Since then , I have learned a lot more about the characteristics about eneloop and other low-self-discharge cells . So it is time to clear up some inaccurate information I wrote about eneloop's self-discharge rate .
1 . I was told that the Sanyo eneloop cells were not 100% fully charged when they leave factory . This makes sense because new cells are fast-charged in the factory to save time . In order to avoid problem with heat and gas built-up , they cannot be charged to 100% . I have tested some eneloop cells that were manufactured 20 months ago , and they still maintained about 70% charge . On the other hand , cells manufactured 6 months ago contain about 75% charge . This confirmed that the discharge rate is much lower than I previously estimated .
2 . The self-discharge rate of eneloop ( and other LSD cells ) is not linear ! My own testing showed that a fully charged eneloop may lose 10% of its initial charge during the first month of storage , but in the second months it may lose just 2 - 3% . The rate becomes even slower after three months . In fact , my 5 - month self-discharge test using various brands of LSD cells gave nearly identical results as my previous 3 - month test .
3 . When an eneloop cell is freshly charged , its capacity actually measures at about 5% higher than its rated capacity ( 2100mAh vs . 2000mAh ) . In my previous tests , I used measured capacity as base to calculate the percentage loss . This results in apparently higher percentage loss . Had I used the rated capacity as base value , the self-discharge rate would be about 5% lower .
Based on the above revelation , I believe Sanyo's claim about eneloop ( maintain 85% charge after one year , 80% after two year ) to be accurate . Therefore the title of my previous review ( The News of LSD Has Been Slightly Exaggerated ) has to be replaced .
Over the past two years , I have tested several different brands of LSD cells available from Amazon.com , including
Rayovac Hybrid
,
Kodak Pre-Charged
, and
Duracell Pre Charged
. They have all performed very well - practically no difference from the Sanyo eneloop . So the bottom line is : just pick which ever brand of LSD cell is on sale , and you can't go wrong .
002 4 According to Sanyo , the new eneloop LSD ( low self-discharge ) NiMH batteries can maintain 85% of its original charge after 1 year of storage . This claim is slightly misleading , because it is based on simulation test at 20 degree C . At higher temperature , the self-discharge rate is likely to be much higher .
I have tested five of those AA cells ( details are given in my review for the eneloop 4 - pack ) . The average energy loss is about 26% after less than 6 months of storage , based on manufacturer date codes . This self-discharge rate is about 3 times higher than what Sanyo claimed . However , it is still 6 times lower than that of ordinary NiMH batteries . Therefore I'm in the process of replacing most of my existing rechargeable cells to the Sanyo eneloop .
Thanks to lower self-discharge rate , you'll discover a lot more applications for eneloop cells in your house , such as in clocks and remote controls . Do NOT use those cell in smoke detectors , since their discharge voltage profile is very different from that of alkaline cells . Also , don't use them as emergency flash lights batteries in your car , because the higher temperature during summer time will probably nullify the advantage of LSD .
[ Update on Jan 13 , 2007 ]
I have tested six new eneloop AAA cells , dated 2006 - 06 ' . The average residue charge is 589mAh , and the freshly charged capacity is 827mAh . This implies a self-discharge rate of 29% in 7 months , which is consistent with the rate for AA cells ( 26% loss in 6 months ) .
[ Update on Jan 29 , 2007 ]
The Rayovac Hybrid rechargeable NiMH batteries are now available at Walmart , priced at only $ [ . . . ] for 4 - pack of AA or AAA cells . It is also advertised to have low self-discharge rate , but not as low as that for eneloop . The eneloop is supposed to retain 85% charge in 12 months ( when stored at 20 degree C ) , whereas Hybrid is supposed to retain 80% charge in 6 months ( no mention of temperature ) .
[ Update on June 3 , 2007 ]
In my 2 - month self-discharge test using four different brands of NiMH cells . Hybrid and eneloop came up neck-and-neck !
Room temperature : 60 - 62 degree F ( 16 - 17 degree C ) . All capacities measured are average of 2 - cells .
- Sanyo eneloop 2000 , purchased Jan 2007 .
Initial capacity measured : 2070mAh
Capacity after 62 days : 1796mAh ( - 13.2% )
( Note : my previous result for eneloop showed - 18% , but I repeated the test and it did better this time )
- Rayovac Hybrid 2100 , purchased Jan 2007 .
Initial capacity measured : 2155mAh
Capacity after 62 days : 1859mAh ( - 13.8% )
- LaCrosse 2000 , purchased Jan 2006 .
Initial capacity measured : 1902mAh
Capacity after 62 days : 1417mAh ( - 26% )
- SONY 2300 , purchased Sep 2004 .
Initial capacity measured : 2210mAh
Capacity after 62 days : 1309mAh ( - 41% )
So neither eneloop nor Hybrid did as well as advertised , but they are still significantly better than previous generation of NiMH cells . So you can't go wrong with either brand .
003 4 I received several sets of Eneloops in February and label told they were produced in April - so they sat at warehouse for nine month . I put them into camera and they worked just fine . Kudos Sanyo !
I should also mention that Sanyo includes reusable battery holders with each set of four . These holders do not look very sturdy , but they perfectly usable .
Technically , Sanyo solved the main problem with NiMh technology - frightening self-discharge rate ( up to 40% a month for standard cells ) . By doing this Sanyo reduced cell capacity down to 2000 mAh from today's top line of 2700 mAh .
Simple calculation shows that due to self-discharge a good 2700 mAh battery holds only around 2000 mAh after a month and a half .
So the answer to the question which battery is better - Eneloop or standard NiMh - lies in the usage pattern .
If you always keep batteries in your camera in top-notch charged condition , then standard 2700 mAh set is a winner . For occasional shooters who always forget to charge batteries ( like me ) , Eneloop makes lot of sense because in three month I get around 1900 mAh out of Eneloop and only 1400 mAh from the standard cell . So Eneloop is a winner for everyone who keep batteries inside the camera or any other device for more than 6 weeks .
And , well , if paragraph above looks too technical with too many details and numbers - then Eneloop is a clear winner too , because it just behaves the way battery should behave - without forcing users to know how it works .
This observation made me buy additional sets of AAA Eneloops to use in my wireless mouse , keyboard , voice recorder and LCD flashlight . It should be taken into account that Eneloops are four times more expensive than Alkaline cells , so it is reasonable to use them for devices that require fresh batteries at least twice a year .
004 4 This compact charger , MDR02 , is best suited for traveling , because it is tiny ( measures only 3 x3 x1 ) , very light ( weights about the same as two AA cells ) , and accept universal input voltage ( 100 - 240V AC ) . It is also a smart charger in the sense that it charges each cell individually , and stops whenever each cell is full .
The main drawback of this charger is that it is rather slow . The charging current is 550mA for AA , and 380mA for AAA . That means it takes about four hours to charge up a pair of 2000mAh eneloop cells . What if you need to charge up a set of four 2700mAh cells ? That will take close to 12 hours ! So you really should keep another faster charger for home use . Just remember that the eneloop cells do NOT require special chargers . Any good quality smart NiMH charger will do the job .
The reverse is also true - You can use this eneloop charger to charge other brands ' AA or AAA NiMH cells . I keep one in my office just to charge up batteries for my MP3 players , headphones , wireless mouse , etc . And since I always keep a spare set of fully charged batteries , the longer charge time does not bother me .
005 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I was initially skeptical when I bought these but figured it couldn't hurt . I needed a set for my Nikon SB - 600 flash . The 2700 mAh Energizers I had performed just fine until they sat in the flash for a month , at which point I had to carry a spare set just in case . I charged the Eneloops , placed them in the flash and had my first call a month later . They worked wonderfully . I went the whole evening without needed spares . I used them again two months later and got a solid hour or two before they were exhausted . They easily lasted 2 - 3x as long as the Energizers and where in the flash for 2x as long . All-in-all , they've performaed very well . They may not maintain 85% of their charge after one year at room temp ( as one reviewer suggested ) but they certainly sit in the bag far better than my others . I am slowly phasing out all my non-Eneloops as a result . . .
007 4 Funny , everyone seems so thrilled about how they come charged out of the box . While this is nice and convenient , the bigger picture is * why * they can come charged out of the box : they discharge at a much slower rate than normal ( NiMH ) rechargeable batteries . If you use your battery-needing product often , you may not notice this , but for things you use sporadically , this is a godsend . No more coming home from vacation to find your TV remote control is dead . No more grabbing your digital camera after three weeks of not using it only to find it won't start up .
These batteries are , indeed , the best of both worlds : they have the power and reuse advantages of a good NiMH battery , but the slow steady discharge of an Alkaline disposable . Look no further - - this is the rechargeable you've been waiting for .
And if you had to guess , I'm happy with my first set and about to order more . . . : )
008 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I bought these batteries for use with my Canon S2 digital camera . I was having trouble with typical nimh batteries because I would charge a spare pair of batteries for use when the main pair died . But I was finding that the ones I charged a few weeks ago would be almost fully discharged by the time I would swap them . This was really annoying and pretty much defeated the purpose of having rechargeables . . . I had to use alkalines instead . But this new so called ' hybrid ' / low discharge technology finally solves this problem . Of course it does not solve it completely because these batteries still discharge over time . . . just a lot slower , but at least now I know I have a pair of batteries that are at least 80 percent or so charged when I swap them . This technology was actually developed by an small independent company and licensed for use with all the major battery companies now . For instance , Sony is also utilizing it in their new batteries now . To me , this demonstrates how well it works .
So how does it hold up in real life ? Pretty darn well , actually . I noticed that these particular batteries last really long in my Canon S2 . I haven't had the problem of charged batteries being totally discharged by the time I swap them anymore . So if you're having similar problems with your older Nimh batteries , I would recommend giving these batteries a try . But don't feel limited to this brand , there are many other brands utilizing this technology and I've used other brands with the same great results .
Tip : If you live near a Fry's Electronics , they have a nice selection of battery choices that utilize this technology .
009 4 I bought these batteries for use with my Canon S2 digital camera . I was having trouble with typical nimh batteries because I would charge a spare pair of batteries for use when the main pair died . But I was finding that the ones I charged a few weeks ago would be almost fully discharged by the time I would swap them . This was really annoying and pretty much defeated the purpose of having rechargeables . . . I had to use alkalines instead . But this new so called ' hybrid ' / low discharge technology finally solves this problem . Of course it does not solve it completely because these batteries still discharge over time . . . just a lot slower , but at least now I know I have a pair of batteries that are at least 80 percent or so charged when I swap them . This technology was actually developed by an small independent company and licensed for use with all the major battery companies now . For instance , Sony is also utilizing it in their new batteries now . To me , this demonstrates how well it works .
So how does it hold up in real life ? Pretty darn well , actually . I noticed that these particular batteries last really long in my Canon S2 . I haven't had the problem of charged batteries being totally discharged by the time I swap them anymore . So if you're having similar problems with your older Nimh batteries , I would recommend giving these batteries a try . But don't feel limited to this brand , there are many other brands utilizing this technology and I've used other brands with the same great results .
Tip : If you live near a Fry's Electronics , they have a nice selection of battery choices that utilize this technology .
010 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
These 2100 mAh rechargeables are better than 2700 ones - Why - because the regular but higher capacity ones lose charge so quickly , within 10 days they have less charge left in them than the eneloop type .
I had some doubts how they would perform in the real world - in particular , their peak current capability ( which will determine how well they actually work in a digital camera ) . Turns out - they do better than the regular ones . While my 1600 mAh panasonics gave approx 40 - 50 shots consistently , the same digital camera now gives me approx 100 shots with these eneloops . Suddenly my mom's camera which ate up battery very quickly - has become a great camera from the battery change . If she's happy , so am I . Incidentally - the amazon price is also very good - you can also try getting the ones with a charger - this eneloop charger charges batteries INDIVIDUALLY . This is critical - no matter which charger you buy - get ones that charge batteries individually and not in pairs . Also remember to always mark your batteries , so you don't mix up charged and discharged batteries when charging them . I've found this to be a common problem with many users .
012 4 11 / 2006 :
I was going to buy the LaCrosse or Maha MH - 504FS after reading tons of reviews . I'm glad that I didn't and bought this instead . First , this charger ( not sure about the 2 batteries version ) is a smart charger which monitors and charges batteries individually just like the LaCrosse . It is not a dumb timer charger you get for $10 or less . You don't need to worry about quick / slow charges ( like 504FS ) because it uses pulse charge to charge at a speed that's not too fast to hurt your batteries . Second , this charger costs so much less compared to Maha and LaCrosse . Third , I used these eneloop batteries fresh from the package without charging and took over 200 pictures ( about 50 with flash and a few movie chip ) with my Cannon A540 . I believe it can take more pics because NIMH batteries take few cycles of discharge / recharge to reach full capacity . Last but not least , these eneloop battaries are able to hold the charge when sitting idle for months . Unless you charge the normal nimh batteries the night before , they are no good even if they are 2600 high power ones . By the time you use them , they are only partially charged .
I would recommand you to buy a LaCrosse if you still decide to use the ordinary NiMH batteries because you will need to use the refresh function to get rid of memory issue and the LED to tell you how much charge is left after letting the batteries sit for days . ( Oh , I forgot to mention that eneloop claims that it can recharge 1000 times without memory issue . ) However , if you decide to use the eneloop , forget about paying extra for Maha or LaCrosse and the normal Nimh batteries and just use this amazing charger and awesome batteries instead .
6 / 2007 update :
I bought a new set of Rayovac Hybrid Batteries to see how these compare to Eneloop because they are cheaper . I put the fresh new Rayovac in my digital camera , it works . But when I put it in a LED flashlight , the LED has no light output at all . Later , I put my used Eneloop ( after 200 pictures ) in it . Guess what ? The LED works ! Well , you get what you pay .
013 4 After switching digital camera from Canon A75 to A540 , I discovered the battery life is extremly short on the A540 . At first I thought it's because Canon A540 uses 2 - AA instead of A75 with 4 - AA batteries , then one time , after taking ZERO pictures and freshly recharged NiMH sitting in the camera for only one day , the low battery indicator came on . This happened to both Energizer NiMH 2300mAh battery and Sony NiMH 2600mAh . So I begin to Google the problem and discovered it has something to do with rechargeable battery's drop-off voltage characteristic and how Canon's camera interpret this as low battery indicator .
Hence comes the Eneloop . These batteries ' voltage doesn't drop and they discharge very very slowly . I have used the Eneloop for over two months now and glad to say it finally solve the problem of my Canon A540 . A set of freshly charged Eneloop can last for weeks and 300 + pictures and counting . Plus the charger is 110v to 220v capable , so my trip to Asia / Europe won't require a different charger . This is an awesome product and I will buy more of it !
014 4 I haven't had these batteries long enough to judge their life per charge , but so far they seem to be doing really well , so no issues there .
My problem is with the D ( and possibly C ) spacers ( adapters ) that come with these batteries . I purchased these mainly for use in flashlights , and other regularly used items . To my dismay , the D spacers do not work in my Mag-Lite 3 cell ( D ) flashlights . I'm sure this is going to be an issue with other flashlights as well . A normal feature of flashlights , is the coil / spring that presses against the batteries and completes contact when the flashlight is closed . An important aspect to this is that the spring needs to be able to press against the actual batteries . Unfortunately , since the spacers are shorter than the AA batteries , and they're open at the top , the spring simply goes over and around ( never touching ) the end of the AA battery . It then pushes on just the plastic spacer , causing no connection , so the flashlight doesn't work . The only way to fix this , is to put a coin or metal disk on top of the AA battery , and then close the flashlight . Doing this makes the necessary connection and the flashlight works .
[ . . . ] Flashlights have been around for years , and so has the existence of these springs , so in my opinion this is really bad designing .
I hope Sanyo corrects this with future adapters , since these can really be useful batteries . I shouldn't have to amateurishly rig a flashlight to get it to work . They should have realized that the bottom of a D battery has a larger surface area , and many products are designed with this in mind . Since they didn't take that into account , the small surface area of the AA battery , is a pretty big issue .
If you won't be using the D adapters in flashlights , then you probably won't have a problem . Like I said , so far the batteries are performing very well . I just wanted to make everyone aware of something I didn't think of , and never would have thought of , prior to purchasing .
015 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
My biggest problem with rechargeable batteries for the many years I have been using them is that they normally loose charge at a fairly rapid rate while sitting waiting to be used . GE / Sanyo solved this problem and the result is fantastic .
We have been using these in a Pentax digital SLR and are thrilled with the long in use lifetime and with not needing to worry if the camera sits idle for several weeks .
The only ones to buy IMO !
018 4 This review is from :
Sanyo eneloop Travel Power Pack Kit ( Electronics )
Based on reviews on other Eneloop products , I bought this kit prior to my vacation . On the whole , I'm quite pleased .
It's only been a month , but the batteries seem to be holding their charge fairly well . Certainly , they're doing worlds better than my old ones which had the camera showing a low battery warning after an idle week .
The charger is fairly slow . You'll want to leave your batteries in it overnight rather than trying to top them off in a hurry .
Note that the charger can only charge TWO batteries at a time . I didn't realize that when I ordered it and was disappointed . It's also kind of finicky to get the AAA batteries into it . The AA's went in nicely .
019 4 Based on reviews on other Eneloop products , I bought this kit prior to my vacation . On the whole , I'm quite pleased .
It's only been a month , but the batteries seem to be holding their charge fairly well . Certainly , they're doing worlds better than my old ones which had the camera showing a low battery warning after an idle week .
The charger is fairly slow . You'll want to leave your batteries in it overnight rather than trying to top them off in a hurry .
Note that the charger can only charge TWO batteries at a time . I didn't realize that when I ordered it and was disappointed . It's also kind of finicky to get the AAA batteries into it . The AA's went in nicely .
020 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
Better than a regular ( AA ) alkaline battery , but Not better than some rechargeables on the market . ( When ? )
- I bought these Eneloops ( 2000 mAh ) because of the reviews regarding slow discharge rates , and how rechargeables above 2500 mAh can lose power faster , etc .
What I know is that , this winter / under Limited sunlight , the eneloops operated strongly 4 nights ( running about 12 hours Constant ) in my solar strand led Lights , BUT my (
Powerex ( AA ) 2700 mAh Rechargeable NiMH Batteries
) by MAHA ran strong for 8 nights b / f diminishing for the same time frame , using the same light types ( over the same week [ simultaneously ] ) . Yes , the Sanyos are better than alkalines = ability to be re-used , will save you money - over time , and perhaps better than a comparable ( AA ) size 2,000 mAh rechargeable . But I will not buy these over the 2,700 power by MAHA / Powerex - - especially when the device is operated [ continuously ] .
- illumination was also much better w / the 2700s in the light strands . ( for Maha batts - shop around / sale prices vary )
- eneloops arrived w / some charge but not [ fully ] powered . They can be charged in any quality NiMH charger , although the package only mentions Sanyo chargers .
- An eneloop is simply a 2000 mAh rechargeable , when Ur mainly concerned about running a device in the ON mode continuously . It is when the battery is [ Not ] in use , does Low SELF-discharge ( LSD ) battery usefulness pay off .
Difference :
A ) 2700 - 2900 mAh ( from a quality brand ) = for the greatest available power & speed at an event today / 2 wks from now , Significantly MORE pics at a photo shoot / celebration , camera flash maxim speed , Stronger illumination in your lights , etc . - OR -
B ) eneloops ( 2000 mAh ) = b / c your item sits idle for Long periods / mths ( LOW camera use ) , device is slowly drained ( clocks / various remotes ) , you dislike recharging as often , want a set of back-up batteries sitting [ in storage ] holding power because your device can still run well with 1600 - 1700 mAH , if its 10 - 11mths down the road , more or less .
Some have [ over ] rated / recommended these batts as if they're all-purpose rechargeables . [ In storage ] = they're beneficial - ready to use . Yet , [ In continuous operation ] = they can get outperformed . It comes down to usage . . .
Update : Sanyo also has a
2700 mAh - NIMH
. And Maha has a LSD w / even more capacity (
IMEDION 2100
) . When eneloops & other LSDs are also available in higher milliampere hours ( mAh ) - that'll be the day !
021 4 Better than a regular ( AA ) alkaline battery , but Not better than some rechargeables on the market . ( When ? )
- I bought these Eneloops ( 2000 mAh ) because of the reviews regarding slow discharge rates , and how rechargeables above 2500 mAh can lose power faster , etc .
What I know is that , this winter / under Limited sunlight , the eneloops operated strongly 4 nights ( running about 12 hours Constant ) in my solar strand led Lights , BUT my (
Powerex ( AA ) 2700 mAh Rechargeable NiMH Batteries
) by MAHA ran strong for 8 nights b / f diminishing for the same time frame , using the same light types ( over the same week [ simultaneously ] ) . Yes , the Sanyos are better than alkalines = ability to be re-used , will save you money - over time , and perhaps better than a comparable ( AA ) size 2,000 mAh rechargeable . But I will not buy these over the 2,700 power by MAHA / Powerex - - especially when the device is operated [ continuously ] .
- illumination was also much better w / the 2700s in the light strands . ( for Maha batts - shop around / sale prices vary )
- eneloops arrived w / some charge but not [ fully ] powered . They can be charged in any quality NiMH charger , although the package only mentions Sanyo chargers .
- An eneloop is simply a 2000 mAh rechargeable , when Ur mainly concerned about running a device in the ON mode continuously . It is when the battery is [ Not ] in use , does Low SELF-discharge ( LSD ) battery usefulness pay off .
Difference :
A ) 2700 - 2900 mAh ( from a quality brand ) = for the greatest available power & speed at an event today / 2 wks from now , Significantly MORE pics at a photo shoot / celebration , camera flash maxim speed , Stronger illumination in your lights , etc . - OR -
B ) eneloops ( 2000 mAh ) = b / c your item sits idle for Long periods / mths ( LOW camera use ) , device is slowly drained ( clocks / various remotes ) , you dislike recharging as often , want a set of back-up batteries sitting [ in storage ] holding power because your device can still run well with 1600 - 1700 mAH , if its 10 - 11mths down the road , more or less .
Some have [ over ] rated / recommended these batts as if they're all-purpose rechargeables . [ In storage ] = they're beneficial - ready to use . Yet , [ In continuous operation ] = they can get outperformed . It comes down to usage . . .
Update : Sanyo also has a
2700 mAh - NIMH
. And Maha has a LSD w / even more capacity (
IMEDION 2100
) . When eneloops & other LSDs are also available in higher milliampere hours ( mAh ) - that'll be the day !
022 4 I bought these recharger and batteries because , using a flash , I could literally only take about 20 pictures with two AA batteries before they were dead and in need of replacement . With the Eneloop batteries I can take 60 - 80 pictures before I have to switch batteries . Much better !
023 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I have a 5 MP digital camera that only uses 2 AA batteries and was getting very finicky about the Energizer and Rayovac rechargeable NiMH batteries I supplied it with . I like to charge up my batteries and keep a spare set in my camera case for backup . However , I was continuously putting in the fresh batteries and the camera wouldn't even power on . It would say Change batteries . It was baffling b / c batteries that were totally charged were not working any more . The only thing I could figure is that because NiMH AA batteries are only 1.2 Volts instead of the standard 1.5 , anything less than a full charge would not supply the camera with a high enough voltage to power on . Then I started reading about batteries and discovered that these things lose charge surprisingly fast when sitting in storage . I bought four Eneloop batteries and tried them . I have been amazed at the performance with my digital camera . With the previous brands of NiMH , I could maybe get 120 pictures from the camera . Now I can go almost double that time . Don't ask me why . Part of that reason is probably due to the fact that I don't use my camera for significant amounts of time between shoots . So the eneloops hold that charge MUCH better . Anyway , foot the extra cost of these batteries and order plenty of extras . You'll be glad you did when using high-drain devices !
024 4 I have a 5 MP digital camera that only uses 2 AA batteries and was getting very finicky about the Energizer and Rayovac rechargeable NiMH batteries I supplied it with . I like to charge up my batteries and keep a spare set in my camera case for backup . However , I was continuously putting in the fresh batteries and the camera wouldn't even power on . It would say Change batteries . It was baffling b / c batteries that were totally charged were not working any more . The only thing I could figure is that because NiMH AA batteries are only 1.2 Volts instead of the standard 1.5 , anything less than a full charge would not supply the camera with a high enough voltage to power on . Then I started reading about batteries and discovered that these things lose charge surprisingly fast when sitting in storage . I bought four Eneloop batteries and tried them . I have been amazed at the performance with my digital camera . With the previous brands of NiMH , I could maybe get 120 pictures from the camera . Now I can go almost double that time . Don't ask me why . Part of that reason is probably due to the fact that I don't use my camera for significant amounts of time between shoots . So the eneloops hold that charge MUCH better . Anyway , foot the extra cost of these batteries and order plenty of extras . You'll be glad you did when using high-drain devices !
025 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
I've always been interested in rechargeable batteries . Really , hasn't everybody who has ever thrown away an alkaline wondered if there isn't a better way ? I mean , they look perfectly fine , even though we know in our hearts that they are dead , never to return .
Enter the NiCad , the staple of the hobbiest of the 1970s , these batteries can be recharged many times , but quickly fade out . Their destiny was to be tossed into the battery drawer , that graveyard for half-used and dead batteries that everyone had someplace in their home .
Later , the NiMH , the successor to the lowly NiCad , arrived . When that one showed up , everyone declared victory , emptied the battery drawer into the trash , and started anew . They held much more power than the NiCads of their youth , and seemed nearly perfect . They worked very well indeed in high-demand applications like digital cameras , where the flash and the screen on the backs ate up the little NiCads like they were peanuts . The problem was that in lower demand applications , like remote controls , the thing they still had in common with NiCads proved their undoing . When left alone for a month or two , in a device or not , they would lose their energy . Leaking out like the helium balloon of a child , the power escaped into the ether , leaving the owner to return to a dead remote , unable to do so much as change a channel .
Enter the Eneloop , otherwise known as the precharged NiMH . But , this battery brought something more to the table than a simple quick-charge at the factory . It has an extremely low self-discharge rate , which is fancy talk for saying that a year after you charge it , your remote will still work . Amazing . Finally , after years of well-dressed , but incapable technologies , the contender actually has the chops to take on the reigning champion , the mighty bunny battery .
Replacing all of your remote batteries with these will save countless trips to the garbage , as well as trips to the computer to order more bulk batteries from Amazon . Just think what all those UPS trucks , filled with oddly-named alkaline batteries from China , could be carrying instead . The overworked drivers might even be able to take a day or two off every now and again , all because of a little , relatively unadvertised innovation that fits in your pocket .
If you've ever wondered if there might be a better way while throwing away yet another handful of dead alkalines , give these a try .
Highly recommended .
Sean P . Logue , 2008
026 4 I've always been interested in rechargeable batteries . Really , hasn't everybody who has ever thrown away an alkaline wondered if there isn't a better way ? I mean , they look perfectly fine , even though we know in our hearts that they are dead , never to return .
Enter the NiCad , the staple of the hobbiest of the 1970s , these batteries can be recharged many times , but quickly fade out . Their destiny was to be tossed into the battery drawer , that graveyard for half-used and dead batteries that everyone had someplace in their home .
Later , the NiMH , the successor to the lowly NiCad , arrived . When that one showed up , everyone declared victory , emptied the battery drawer into the trash , and started anew . They held much more power than the NiCads of their youth , and seemed nearly perfect . They worked very well indeed in high-demand applications like digital cameras , where the flash and the screen on the backs ate up the little NiCads like they were peanuts . The problem was that in lower demand applications , like remote controls , the thing they still had in common with NiCads proved their undoing . When left alone for a month or two , in a device or not , they would lose their energy . Leaking out like the helium balloon of a child , the power escaped into the ether , leaving the owner to return to a dead remote , unable to do so much as change a channel .
Enter the Eneloop , otherwise known as the precharged NiMH . But , this battery brought something more to the table than a simple quick-charge at the factory . It has an extremely low self-discharge rate , which is fancy talk for saying that a year after you charge it , your remote will still work . Amazing . Finally , after years of well-dressed , but incapable technologies , the contender actually has the chops to take on the reigning champion , the mighty bunny battery .
Replacing all of your remote batteries with these will save countless trips to the garbage , as well as trips to the computer to order more bulk batteries from Amazon . Just think what all those UPS trucks , filled with oddly-named alkaline batteries from China , could be carrying instead . The overworked drivers might even be able to take a day or two off every now and again , all because of a little , relatively unadvertised innovation that fits in your pocket .
If you've ever wondered if there might be a better way while throwing away yet another handful of dead alkalines , give these a try .
Highly recommended .
Sean P . Logue , 2008
027 4 I purchased a set of 8 about 2 months ago , after becoming thoroughly frustrated with my much more expensive Powerex 2200mah batteries , that I had been using for about 1 year prior .
I use a Canon S2 IS , which goes through batteries like they're going out of style . I had thought the Powerexs would be ideal from what I read in their marketing , but I had some very bad luck with them . Out of the 8 Powerexs , one is now completely dead ( as of 4 months ago , will not charge at all ) , and the remaining ones seem unable to hold a charge at all . Despite my best efforts to match them , a set of four will not last me a weekend of shooting ( I shoot motorsports racing ) without needing to be charged at least 4 times a weekend . Meaning I had to bring a car charger and charge in between races , often missing some races altogether .
Enter the Eneloops - so far , so good . They do seem to hold their charge extremely well , as advertised . I don't run any tests , I simply go by what I see . I charge both sets after finishing up a weekend , and let them sit until the next event . I can pull them out of the case , pop them in my Canon and shoot away , it is not uncommon for me to be able to shoot an entire weekend ( 2 days of racing ) on one set of the Eneloops ( although I always bring two sets just in case , that is never a bad idea , hence this 8 - pack being such a great deal IMO ) . The fact that they work so well in such a power-draining application is testament enough for me , I will never go back to Powerex .
The Eneloops charge using my Powerex charger , I think you can use any charger that is made for these NiMh type batteries .
030 4 The Sanyo eneloops are a huge improvement over every other brand I've used for the last decade . I bought a dozen to start and they are so good that I just placed an order for 24 more plus another charger .
The eneloop 4 - cell charger is also the best I've seen , much less owned . ( OK . . . yes , I'm a techie and a battery freak . )
The tendency of batteries to go dead - - even when they are not being used - - is called self-discharge . These days , the end of a battery's useful life is when it won't hold a charge for a reasonable period of time .
It doesn't matter how much capacity a battery has if it is dead two weeks after charging . So don't compare the eneloop's 2000mAh with the 2500mAh of other brands . Unless you ~ always ~ charge ~ immediately ~ before use , in real-life the eneloops will run your camera much longer .
From generics to the bunny , the recent 2300 to 2600mAh NiMH AA cells all get to be pretty much useless after a few charge-discharge cycles - - especially using fast chargers . I have bought dozens of AA cells in the last year and it seems like I spend all my time in a vain effort to keep them charged and ready to use .
The eneloop propaganda claims an amazing 35% self-discharge per year . That is probably true for brand new cells , still in the box . And it is why they can legitimately claim that they are pre-charged . However . . .
After one discharge / charge cycle it's more like 12% per month self-discharge . I measured this by comparing the time to top-off charge after 1 day idle with the time to top-off after 22 days . This is still very good .
12% per month is vastly better than the 50% per month for the top brand when nearly new and flat-dead in 2 weeks once they had been used for a while .
Also , for those concerned about the 7 - 8 hour charge time for the eneloop charger : You can charge eneloops in a fast charger , but it is just about guaranteed that they won't hold a charge very long afterwards . Part of the eneloop magic is the chemistry and part is the charger .
All chargers that do the job in 8 hours or less need to know when to stop charging . Most chargers don't do this very well .
The eneloop charger appears to use the dT / dt technique . It senses how fast the cells heat up while charging . This is by far the most gentle , reliable and most expensive method . More kudos to Sanyo .
032 4 The
Sanyo MDU01S
is a USB-powered battery charger that accepts either 1 or 2 AA / AAA cells . You can use it to charge eneloop or any other brands of NiMH cells . It monitors the status of each cell independently , so there is no danger of over-charging the cell .
Unlike a stand-alone charger ( which needs to be connected to an AC outlet ) , the MDU01S draws its power from the USB port of your laptop or PC . That's why this charger can be made so tiny , and you never have to search for yet another AC outlet .
The down-side with this USB charger is : since the power available from an USB port is limited , its charging current is relatively low . If you put just one cell in it , the charging current is 850mA . That means it takes about 2.5 hours to fully recharge one 2000mAh eneloop AA cell . But if you put two cells in it , the current drops to 450mA each . So now it takes about 4.5 hours to fully recharge 2 eneloop AA cells .
Another concern is that : once your laptop goes into low-power standby or ' sleep ' mode , its USB ports may be turned off , which means the charger will also stop working .
If , like me , you always travel with your laptop computer , then the MDU01S makes a very nice travel charger . Otherwise , you may want to consider the
Sanyo MDR02NU
as a stand-alone travel charger .
033 4 This is such a great battery ! These are the only rechargeable batteries that I know of that work right out of the package . I have had other rechargeables and they had to be charged before using . Plus , they last MUCH longer than the other ones . My MP3 Player has fallen in love with these batteries !
037 4 I Own several different brands of AA , AAA NIMH rechargeables which I use for my photographic equiptments . I always have to charge them before I use them to make sure that they are ready . I accidentally bump into the Eneloop batteries while browsing on Amazon . After reading the specs of the battery , I got so excited as I've been waiting for a product like these . I first ordered a four pack and when it arrived I immediately check the charge of the batteries with my battery tester , and sure enough it still had a full charge . I bought another four with the charger
I also noticed that the charger indicator light would go off when the batteries are fully charge . My only regret is , I wish the charger can be used in countries using to 220V . I will load them on my Nikon SB - 600 electronic flash on my next photo shoot and see how they compare with my other NIMH batteries . As of now I have the feeling that this will be my primary batteries . I will put in another review after I use them .
038 4 I have a Sony digital camera that uses 2 AA batteries . I was always upset that I had to recharge my standard Ni-MH batteries the night before I shot pictures . Many times , I would go to use it and the batteries were dead or near dead . With Eneloop , I can leave the batteries in the camera , like alkaline , and take a lot of pictures , like Ni-MH batteries . They are turly the best of both worlds . The charger that comes with this set is also useful . It is a smart charger that monitors batteries unlike timer based ones that can undercharge and overcharge batteries . I also wouldn't use the Energizer or Duracell 15 minute charger on these since it could damage the cells . Eneloop is the next generation rechargeable battery !
039 4 long battery life ! ! the long lasting battery life makes it's capacity worth a while . Unlike all other AA rechargeable , although some of them marked 2700mah , but you are actually getting less than what you are using because charges often fade out by time . For example , I have a set of Panasonic 2600mah AA , they often allow me more than 700 + of shots on my digital camera . However , if I fully charged them , and use them 2 days after I've charged , I often only getting around 500 + shots .
On the other hand , eneloop allows me constant 700 + shoots every charge . Very well done technology . Now ! What if we have eneloop batteries on our electric cars ? that would be awesome ! ! !
040 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I purchased the GE / Sanyo Eneloop batteries . They are pricey , but I took over 100 flash photos and did not get a low battery light on my camera . I am considering buying more for other devices like my cordless mouse and keyboard .
043 4 The life on these things is amazing : D I just got a digital camera and I've been taking tons and tons and tons of pictures and video with my camera and the battery meter hasn't gone down yet . And this is back-to-back with flash and everything . I have the AAs too and they're just simply awesome . When the batteries die , I just put them on the charger overnight and in the morning , I'm good to go . I don't mind the recharge time since I do all my charging when my stuff isn't gonna be in use .
044 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
GE / Sanyo eneloop batteries are 2000mah NiMH cells that can be charged over 1000 times . What makes them special is the fact that they can be charged and placed in a drawer or camera for a year , and still hold 85% of their charge . Think of them as Hi-Power rechargeable alkaline batteries . I have a Pentax * ist DS dSLR that uses four AA batteries . I purchased a 4 - pack of eneloop's , popped them into my camera ( you don't need to charge them first ) and took about 450 photos over a 4 month period before I needed to charge the batteries . Any new NiMH charger can charge eneloop batteries or you can buy Sanyo's . I don't care how many milliamps your batteries have ( 2500 / 2700 ) after a few weeks sitting around , their dead . Not the case with eneloops .
045 4 GE / Sanyo eneloop batteries are 2000mah NiMH cells that can be charged over 1000 times . What makes them special is the fact that they can be charged and placed in a drawer or camera for a year , and still hold 85% of their charge . Think of them as Hi-Power rechargeable alkaline batteries . I have a Pentax * ist DS dSLR that uses four AA batteries . I purchased a 4 - pack of eneloop's , popped them into my camera ( you don't need to charge them first ) and took about 450 photos over a 4 month period before I needed to charge the batteries . Any new NiMH charger can charge eneloop batteries or you can buy Sanyo's . I don't care how many milliamps your batteries have ( 2500 / 2700 ) after a few weeks sitting around , their dead . Not the case with eneloops .
047 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
These batteries have one major advantage over most other rechargeables - they retain their charge much longer . This is especially useful for my digital camera . I don't use it every day and may go 2 - 3 weeks between uses . With other brands I would always have to charge up a new set of batteries each time I used my camera because they would discharge while sitting idle in my camera for 2 weeks . Now I can just pick up my camera and go .
These don't have the highest capacity out there , but since the higher capacity batteries discharge pretty quickly , I find that I actually get a lot more usage from these than I did from 2500mAh Energizers . I hope they do come out with a higher capacity version eventually , but even now they beat all the competition out there .
Edit : I should add that I mistakenly put this review under the AAA batteries , when I meant to put it under AA batteries , which is what I was thinking when I compare them to Energizers . But I do also use the AAA Eneloops and everything that I said about the AA size goes for the AAA size too
048 4 These batteries have one major advantage over most other rechargeables - they retain their charge much longer . This is especially useful for my digital camera . I don't use it every day and may go 2 - 3 weeks between uses . With other brands I would always have to charge up a new set of batteries each time I used my camera because they would discharge while sitting idle in my camera for 2 weeks . Now I can just pick up my camera and go .
These don't have the highest capacity out there , but since the higher capacity batteries discharge pretty quickly , I find that I actually get a lot more usage from these than I did from 2500mAh Energizers . I hope they do come out with a higher capacity version eventually , but even now they beat all the competition out there .
Edit : I should add that I mistakenly put this review under the AAA batteries , when I meant to put it under AA batteries , which is what I was thinking when I compare them to Energizers . But I do also use the AAA Eneloops and everything that I said about the AA size goes for the AAA size too
049 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I have been using rechargeable NiMH batteries since getting my current Canon camera that uses AA batteries . I always had a spare set of Alkaline batteries so that if I needed to take a picture without knowing in advance I would have working batteries . Since getting the Eneloops , I have not had to use spare batteries . The camera has always been available for use . I recentl bought a second set of 4 Eneloops that I keep as spares in case I run out of power from usage .
050 4 I have been using rechargeable NiMH batteries since getting my current Canon camera that uses AA batteries . I always had a spare set of Alkaline batteries so that if I needed to take a picture without knowing in advance I would have working batteries . Since getting the Eneloops , I have not had to use spare batteries . The camera has always been available for use . I recentl bought a second set of 4 Eneloops that I keep as spares in case I run out of power from usage .
051 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I bought this for my Wii remotes . On full charge , these batteries seem to last about as long as high end disposable batteries . My only complaint is that the charger doesn't tell you when charging is complete . The light only let's you know that it is in fact charging . This is a minor complaint though and overall i'm very happy with my purchase . ( I usually leave the batteries in the charger for about 30 minutes for full juice . )
Edit : I'm an idiot . The light turns off when it's done charging . It takes about 4 hours or so .
052 4 I bought this for my Wii remotes . On full charge , these batteries seem to last about as long as high end disposable batteries . My only complaint is that the charger doesn't tell you when charging is complete . The light only let's you know that it is in fact charging . This is a minor complaint though and overall i'm very happy with my purchase . ( I usually leave the batteries in the charger for about 30 minutes for full juice . )
Edit : I'm an idiot . The light turns off when it's done charging . It takes about 4 hours or so .
053 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I mean , this isn't rocket science , is it ? One AA battery should be about as good as any other AA battery , right ? Wrong . Well , at least they should be in the same ballpark , no ? No . It's amazing how little I know about batteries , but luckily NLee the Engineer knows just about everything about them , so if you want to read only one review , skip mine and go directly to his .
So why did I buy these fairly expensive 2,000mAh NiMH rechargeable batteries ? Because I read NLee's review . I also wanted to replace the 24 ( yes , 24 ) 600mAh NiCad batteries that came with a 12 - set solar lighting system for my walkway . Being the great genius I am , I quickly deduced that I should get almost 3 - 1 / 2 times more lighting usage out of the 2,000mAh batteries than I would the 600mAh batteries that came with the solar lights . The 600mAh batteries couldn't keep these solar lights on long enough after a few nights of use . This has to do with the solar cell not collecting enough light during the day ( short day , it being winter time at the time of this review ) to charge these batteries enough to run all night long . For once , I was right ( although I'm not sure if the mAh number is the only reason . . . it may also be the difference between NiCad and NiMH ) . Actually , I got well over 4 times the usage . Now I find that quite startling . More than that , it dumbfounded me . I don't think I'll look at batteries quite the same way any longer .
So how do I rate these batteries . This is pretty simple . They are so far superior to the other batteries I had ( yeah , those were really cheap ones ) , that I give the Sanyo batteries a 9 out of 10 or a 5 - star rating ( I'm far too ignorant about batteries to give it 10 out of 10 ) . How would these batteries compare to other NiMH batteries with identical mAh rating ? Sorry , I don't have a clue . All I know is that these have performed even better than I thought they would .
There is one other thing that baffles me , and that is the price of the 4 - pack versus the price of the 8 - pack . I required 24 batteries , so the cost of getting 6 , 4 - packs were $55.14 , while the price of 3 , 8 - packs would be $59.97 . Since it would no doubt cost less ( another ingenious deduction on my part ) to pack 3 - sets , than it would to pack 6 sets , one would think the 8 - pack would be cheaper . Wrong again . So forgo the 8 - pack and get the 4 - pack . Of course price is always subject to change , so make sure you confirm this before purchasing .
054 4 I mean , this isn't rocket science , is it ? One AA battery should be about as good as any other AA battery , right ? Wrong . Well , at least they should be in the same ballpark , no ? No . It's amazing how little I know about batteries , but luckily NLee the Engineer knows just about everything about them , so if you want to read only one review , skip mine and go directly to his .
So why did I buy these fairly expensive 2,000mAh NiMH rechargeable batteries ? Because I read NLee's review . I also wanted to replace the 24 ( yes , 24 ) 600mAh NiCad batteries that came with a 12 - set solar lighting system for my walkway . Being the great genius I am , I quickly deduced that I should get almost 3 - 1 / 2 times more lighting usage out of the 2,000mAh batteries than I would the 600mAh batteries that came with the solar lights . The 600mAh batteries couldn't keep these solar lights on long enough after a few nights of use . This has to do with the solar cell not collecting enough light during the day ( short day , it being winter time at the time of this review ) to charge these batteries enough to run all night long . For once , I was right ( although I'm not sure if the mAh number is the only reason . . . it may also be the difference between NiCad and NiMH ) . Actually , I got well over 4 times the usage . Now I find that quite startling . More than that , it dumbfounded me . I don't think I'll look at batteries quite the same way any longer .
So how do I rate these batteries . This is pretty simple . They are so far superior to the other batteries I had ( yeah , those were really cheap ones ) , that I give the Sanyo batteries a 9 out of 10 or a 5 - star rating ( I'm far too ignorant about batteries to give it 10 out of 10 ) . How would these batteries compare to other NiMH batteries with identical mAh rating ? Sorry , I don't have a clue . All I know is that these have performed even better than I thought they would .
There is one other thing that baffles me , and that is the price of the 4 - pack versus the price of the 8 - pack . I required 24 batteries , so the cost of getting 6 , 4 - packs were $55.14 , while the price of 3 , 8 - packs would be $59.97 . Since it would no doubt cost less ( another ingenious deduction on my part ) to pack 3 - sets , than it would to pack 6 sets , one would think the 8 - pack would be cheaper . Wrong again . So forgo the 8 - pack and get the 4 - pack . Of course price is always subject to change , so make sure you confirm this before purchasing .
055 4 I bought a 4 pack of AA batteries for my GPS about a month ago . As advertised , they were fully charged right out of the package . I can't believe how long these batteries are lasting me on one charge . I have left them in for two weeks and used the GPS each day for walks , hikes and car trips . They just don't discharge like the normal NiMH batteries I have used ( and been disappointed by ) in the past .
The only downside is the price , but in the long run I think they will be worth the money .
056 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
Guess what , I opened the box , pulled the batteries out , and have been using the batteries for well over a week taking hundreds of pics with my new
Nikon SB - 600 Speedlight Flash for Nikon Digital SLR Cameras
. What's even more amazing , is that I likely can do this for a few more weeks . Try that with any other batteries and what you'll get are empty batteries that may get damaged by using them without charging them first . OK you say , I don't need to use them right away , well don't think of charging them and throwing them in your camera bag , as by the time you need them , you'll need to charge them again , as most nimh batteries lose 1 - 2% of charge a day - - from just sitting around ! Don't you buy rechargeable batteries for their efficiency ? Well when you have to constantly recharge them , that's not efficient !
These batteries are the real deal !
058 4 I constantly use about 40 AA sized Batteries . I tried to replace them with regular Rechargeable Batteries . The problem with those is that they are always empty when you actually need them . Not the Eneloop , they are always ready to go . Just recharge them when they are empty and store them like regular Batteries .
Apparently there are normal rechargeable Batteries out there which are labeled with a higher capacity . The truth is : with devices which draw not that much power or which you use only occasionally , you lose most of the available power on self discharge processes . The Eneloop keep their charge so that you actually get more out of them .
For my needs they are perfect !
059 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I've been using my 8 pack of AA ANiMH Rechargeables for several months . They actually stay charged . You can use them places you'd never consider a rechargeable and they hold their charge . I recommend ! !
060 4 I've been using my 8 pack of AA ANiMH Rechargeables for several months . They actually stay charged . You can use them places you'd never consider a rechargeable and they hold their charge . I recommend ! !
061 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
After years of rechargeable NiM。's , these eneloops are a godsend . Whereas the NiM。's would discharge without use in the camera within days , these eneloops go on and on and on . . .
064 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
GE / SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries
I like NiMh batteries a lot . The only problem is that they will lose their capacity after a few months and this made they not suitable for my certain applications . When I learn that Sanyo has this new type of batteries , I bought a few from Amazon due to their reasonable prices . After it arrived on Nov . 2007 , I notice that its production date is 09 - 2006 . So it is about 14 month old . Its voltage is 1.29 volts , not bad for a battery stored for over a year . Its remaining capacity is shown to be 2060mAh as measured by the LaCrosse Technologies ' battery charger / tester . [ edited by the reviewer : Somehow I didn't read the LaCrosse tester capacity results right . I used my own ( home made ) data acquisition tester tested again today , the capacity is about 1300 mAh . Not bad after storing for 14 months . - 11 / 19 / 2007 ] I then charged the battery to full and measured its capacity . It is 2170 mAh . Looks to me the batteries I received exceed the flash and stored capacities claimed by Sanyo and better than other reviewers ' results . The only weakness is they cannot match the capacity of the top ones of the conventional NiMh batteries but this is not that bad and it is not so important for my applications .
If its long term performance is as good , I don't think I will buy regular NiMh again in the future .
065 4 GE / SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries
I like NiMh batteries a lot . The only problem is that they will lose their capacity after a few months and this made they not suitable for my certain applications . When I learn that Sanyo has this new type of batteries , I bought a few from Amazon due to their reasonable prices . After it arrived on Nov . 2007 , I notice that its production date is 09 - 2006 . So it is about 14 month old . Its voltage is 1.29 volts , not bad for a battery stored for over a year . Its remaining capacity is shown to be 2060mAh as measured by the LaCrosse Technologies ' battery charger / tester . [ edited by the reviewer : Somehow I didn't read the LaCrosse tester capacity results right . I used my own ( home made ) data acquisition tester tested again today , the capacity is about 1300 mAh . Not bad after storing for 14 months . - 11 / 19 / 2007 ] I then charged the battery to full and measured its capacity . It is 2170 mAh . Looks to me the batteries I received exceed the flash and stored capacities claimed by Sanyo and better than other reviewers ' results . The only weakness is they cannot match the capacity of the top ones of the conventional NiMh batteries but this is not that bad and it is not so important for my applications .
If its long term performance is as good , I don't think I will buy regular NiMh again in the future .
066 4 I replaced the batteries in my engineering model calculator with three AAA eneloops several weeks ago . The batteries have kept going and going compared with regular NiMH AAA's which are not suitable for long term low drain devices like this because they won't keep going and going . They disapate far too quickly . You would have to recharge them so often it would make you crazy .
I also like the idea I can keep several sets of eneloops charged up and ready for use in my camera , a high drain device , for which a regular NiMH might be useful . Problem is I don't take all my photos within a day or two and regular NiM。's disipate . Once again , I have to recharge . Not so with eneloops . For me these batteries are the greatest .
2700 mA。's ( or more in the future ) of energy storage capacity for the highest regular NiM。's does not trump eneloops 2100 mAH for me if most of the 2700 mA。's disipates within days of its having been charged . TV remote controls , calculators , shavers and all sorts of uses where alkalines were more appropriate eneloops ( or other hybrid NiMH batteries ) can now be used . Good job !
068 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
A year ago I bought Promaster XtraPower Pro rechargeable NiMH AA batteries for my Canon S3 IS . The batteries seemed to lose their charge quickly . Heading to the United Kingdom , I decided to try the new AA Sanyo ENELOOPS NiMH 2000mAh . To make sure that they held their full charge , I used the video feature of my camera . I've managed to get 250 minutes of video recording time with the ENELOOPS . Compare this to the Promaster that only lasted 150 minutes fully charged . Even with the ENELOOPS sitting in the camera for at least 3 days without use , I was able to record at least 100 minutes of video , and sitting in the camera after 2 weeks , I can still take photos without a recharge . The Promaster which were fully charged ( but left to sit outside the camera for 3 days ) needed charging as soon as I put them in the camera . I haven't taken my trip yet , but I don't plan on taking the Promaster batteries even as a backup . With 8 ENELOOPS and a battery charger , I think I'll be fine .
069 4 A year ago I bought Promaster XtraPower Pro rechargeable NiMH AA batteries for my Canon S3 IS . The batteries seemed to lose their charge quickly . Heading to the United Kingdom , I decided to try the new AA Sanyo ENELOOPS NiMH 2000mAh . To make sure that they held their full charge , I used the video feature of my camera . I've managed to get 250 minutes of video recording time with the ENELOOPS . Compare this to the Promaster that only lasted 150 minutes fully charged . Even with the ENELOOPS sitting in the camera for at least 3 days without use , I was able to record at least 100 minutes of video , and sitting in the camera after 2 weeks , I can still take photos without a recharge . The Promaster which were fully charged ( but left to sit outside the camera for 3 days ) needed charging as soon as I put them in the camera . I haven't taken my trip yet , but I don't plan on taking the Promaster batteries even as a backup . With 8 ENELOOPS and a battery charger , I think I'll be fine .
071 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I had always been frustrated in grabbing the digital camera ( Minolta S404 , using 4 AAs ) . We'd have to schedule it because by the time we went to grab it , the NiMH batteries would have discharged to the point that a few pictures would shut the camera down . Of course , recharging on the spot is not an option , and leaving the batteries in a charger all the time isn't a good thing either .
While the Eneloops have a lower capacity ( merely 2000MaH ) , so far they've worked exactly as advertised .
We'll see how they hold up over time , but until then , if your digital camera uses AA or AAA batteries , buy 2 sets _ immediately _ .
We'll see if they can be beneficial as an alkaline replacement as well on some RC toys . I'll have to do a cost and waste comparison compared to alkalines . . .
072 4 I had always been frustrated in grabbing the digital camera ( Minolta S404 , using 4 AAs ) . We'd have to schedule it because by the time we went to grab it , the NiMH batteries would have discharged to the point that a few pictures would shut the camera down . Of course , recharging on the spot is not an option , and leaving the batteries in a charger all the time isn't a good thing either .
While the Eneloops have a lower capacity ( merely 2000MaH ) , so far they've worked exactly as advertised .
We'll see how they hold up over time , but until then , if your digital camera uses AA or AAA batteries , buy 2 sets _ immediately _ .
We'll see if they can be beneficial as an alkaline replacement as well on some RC toys . I'll have to do a cost and waste comparison compared to alkalines . . .
076 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
Purchased a 4 pack in late December as a backup for a holiday trip . Got used in a point-and-shoot camera for a few days then charged on my La Cross charger and transferred to the digital display on my elliptical machine . Less than 2 months later one cell is completely dead . Isn't recognized by any device , charger or voltmeter . Dead .
Calls and emails to Sanyo customer service have been completely ignored and I've been trying for 2 solid weeks . Useless . I can't stand companies who drop emails into a black hole and don't answer the telephone . Sanyo customer service number goes to voice mail no matter what time of day you call them . Lousy service , apparently lousy quality control too !
I'll be purchasing from other manufacturers in the future for any electronics needs . Buh bye Sanyo .
Edit : additional information - I was finally able to contact customer service ( after a month of trying ) who very nicely asked for a copy of the purchase receipt which I provided . They determined that the battery needed replacement and asked me to return the one dead cell to them at my expense which I did . No further communication and no replacement battery has ever been received . I give up as the cost of all of the time and effort following up on one lousy dead battery far exceeds the original purchase price . Customer service shouldn't be so hard to reach and you shouldn't have to jump through hoops to get satisfaction under the warranty .
Edit : additional information - months later I stumbled across the email from customer service and decided to give them one more chance . They asked for proof of mailing which I told them I couldn't be bothered to locate and told them I didn't think the service was that great . A few days later they asked for a shipping address and mailed me 1 AA battery . Hats off to the Sanyo rep for sending the battery but , really , I think it should have been sent after the initial complaint and proof of purchase .
077 4 Purchased a 4 pack in late December as a backup for a holiday trip . Got used in a point-and-shoot camera for a few days then charged on my La Cross charger and transferred to the digital display on my elliptical machine . Less than 2 months later one cell is completely dead . Isn't recognized by any device , charger or voltmeter . Dead .
Calls and emails to Sanyo customer service have been completely ignored and I've been trying for 2 solid weeks . Useless . I can't stand companies who drop emails into a black hole and don't answer the telephone . Sanyo customer service number goes to voice mail no matter what time of day you call them . Lousy service , apparently lousy quality control too !
I'll be purchasing from other manufacturers in the future for any electronics needs . Buh bye Sanyo .
Edit : additional information - I was finally able to contact customer service ( after a month of trying ) who very nicely asked for a copy of the purchase receipt which I provided . They determined that the battery needed replacement and asked me to return the one dead cell to them at my expense which I did . No further communication and no replacement battery has ever been received . I give up as the cost of all of the time and effort following up on one lousy dead battery far exceeds the original purchase price . Customer service shouldn't be so hard to reach and you shouldn't have to jump through hoops to get satisfaction under the warranty .
Edit : additional information - months later I stumbled across the email from customer service and decided to give them one more chance . They asked for proof of mailing which I told them I couldn't be bothered to locate and told them I didn't think the service was that great . A few days later they asked for a shipping address and mailed me 1 AA battery . Hats off to the Sanyo rep for sending the battery but , really , I think it should have been sent after the initial complaint and proof of purchase .
079 4 Just a note :
Buy two 4 - packs on Amazon for 18USD .
Buy one 8 - pack on Amazon for 20USD .
I have also noticed this anti-economy of scale with the Coolwhip at my local supermarket . Foolishly I previously bought 8 - packs of eneloops assuming they were better value , and shall live to regret my mistake .
The batteries are good ; I shall be replacing my ~ 60 NiMH cells with these Eneloops . I only give them 4 - stars because of the capacity . In time I'm sure it will increase .
Lots of love ,
T.S . Libertan
081 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I've owned or own 2500 and 2000 MaH Energizers , two sets of Sony , and now two sets of these
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries
pre-charged batteries . I've owned them for two months , and have been extremely satisfied especially when compared to all other rechargeables bought since my first digital camera and MP3 players back in 2000 .
I'm not certain I understand why the pre-charged part of Sanyo's description is so prominent , but it does help ONCE in the use of these batteries . When you first use the first four , and keep four in your camera bag just in case , it is true : after being on the shelf for who knows how long , the second set will have 75% plus charge left when you take them out of their plastic pack . I haven't had them long enough to know whether they'll hold this charge for a year after I've recharged them , but I'm guessing that that wolds true as well .
What I'm still trying to figure out is the difference between Energizers or Sony 2500mAh and these 2000mAh . These certainly last as long on a photo shoot , even using flash .
What I can tell you is this :
1 . I was able to take over 800 photos at max resolutions with the first set of four right out of the packaging .
2 . They recharged in 90 minutes and , to be honest , I haven't used the spare four yet except to see that they worked . ( Unfortunately , my Canon digital camera doesn't have a battery meter until it's too late - got to remember to put that in my review of the camera . )
3 . One set of Energizers only lasted a year , and I'm sure I didn't recharge them more than 10 times . One set of Sony's lasted only seven months under the same conditions . In all cases , I'm talking about AAs . The AAAs haven't fared as well .
4 . I will be buying more of these Sanyo's and , as soon as I'm done with this review , I'll be looking for the AAAs which I use in two MP3 players and one AM radio .
Hint from years of experience : if you get the pack of 8 , mark four with a permanent marker , and use the set as a set . I don't know why , but sometimes when you mix batteries , you'll find one or two with different strengths after the fourth or fifth charge .
082 4 I've owned or own 2500 and 2000 MaH Energizers , two sets of Sony , and now two sets of these
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries
pre-charged batteries . I've owned them for two months , and have been extremely satisfied especially when compared to all other rechargeables bought since my first digital camera and MP3 players back in 2000 .
I'm not certain I understand why the pre-charged part of Sanyo's description is so prominent , but it does help ONCE in the use of these batteries . When you first use the first four , and keep four in your camera bag just in case , it is true : after being on the shelf for who knows how long , the second set will have 75% plus charge left when you take them out of their plastic pack . I haven't had them long enough to know whether they'll hold this charge for a year after I've recharged them , but I'm guessing that that wolds true as well .
What I'm still trying to figure out is the difference between Energizers or Sony 2500mAh and these 2000mAh . These certainly last as long on a photo shoot , even using flash .
What I can tell you is this :
1 . I was able to take over 800 photos at max resolutions with the first set of four right out of the packaging .
2 . They recharged in 90 minutes and , to be honest , I haven't used the spare four yet except to see that they worked . ( Unfortunately , my Canon digital camera doesn't have a battery meter until it's too late - got to remember to put that in my review of the camera . )
3 . One set of Energizers only lasted a year , and I'm sure I didn't recharge them more than 10 times . One set of Sony's lasted only seven months under the same conditions . In all cases , I'm talking about AAs . The AAAs haven't fared as well .
4 . I will be buying more of these Sanyo's and , as soon as I'm done with this review , I'll be looking for the AAAs which I use in two MP3 players and one AM radio .
Hint from years of experience : if you get the pack of 8 , mark four with a permanent marker , and use the set as a set . I don't know why , but sometimes when you mix batteries , you'll find one or two with different strengths after the fourth or fifth charge .
083 4 I recently tried 2 Enloop AAs in a Kodak z712is camera . The camera has been almost unusable because it is a battery monster - nothing I've tried except the very expensive throw-away CRV3s ( the recommended battery size ) lasts more than about 15 shots . I've tried a few no-name CRV3 rechargeables with no luck . At this point , it was give up on the camera or give in and pay Kodak for their overpriced charger and rechargeable CRV3 , which reportedly works well but costs over 1 / 3 the price of the camera .
The camera will also take AAs , so I tried a few kinds including other NiMh rechargeables . The camera wouldn't even recognize most . I got maybe 5 shots out of some . Finally I tried the Enloops . Absolutely incredible ! I haven't worn out the first pair I put in , after intentionally taking over 120 flash shots as rapidly as the camera will allow . The low battery indicator came on awhile ago , but they just keep on going . My camera is saved !
I've got some of the Radio Shack imitations of the Enloops which I tried as well . They seem to hold up , but the cycle time between shots is a lot longer than the Enloops .
I'd give these batteries 10 stars if I could . It's a great example of value vs . cheap . They cost a little more , but are way ahead of anything against which they compete .
085 4 Buy them , you'll like them . I've learned the hard way that low self-discharge batteries are the only rechargeables you should buy . There are Eneloops , Rayovac Hybrids ( at Target ) , Radio Shack , and a few others , but personally I prefer the Eneloops . This was a pretty good price ( $9.22 for 4 AAA ) especially with free shipping . Other rechargables are dead within a few days of charging , but Eneloops and other low-self discharge batteries will hold a charge for over a year , which is why they can sell them charged and keep them on the shelf at the store . We've completely switched to Eneloops and only buy ( and dispose of ) alkaline batteries in 9V , since they don't yet make a 9V low-self discharge battery as far as I know . I have no connection to Sanyo or any other battery company .
086 4 I have at least thirty of these batteries for our kids toys and some of our big kid toys . They work great , hold a charge and last a long time . I threw away all of our other rechargeables . The price for these has gone up from ~ $11.00 for 4 AA to almost $20 in the past month ! ! ! ? ? ? I'm not sure why for the big price increase .
088 4 I just happened upon these a little over a year ago while looking for a battery charger for AA and AAA batteries . With 2 young children , we had plenty of uses for batteries . I found an excellent charger ( the LaCrosse BC - 900 ) based primarily on the outstanding review of NLee the Engineer who also recommended hybrid-type or low self-discharge batteries . I had honestly never heard of such a thing before that ( since hardly anybody sells them apparently ) . These are especially great for use in electronic items that get used a lot but that also may sit unused for long periods of time ( i.e . digital camera , Wii remotes , etc ) . The beauty of these batteries is that you can throw a few in the camera bag and always know you've got good batteries even months later ( unlike with regular rechargeables which lose their charge much more quickly over time ) . I rarely use any other type of battery now . These are expensive on the front end but have proven to be the most cost-effective and convenient batteries to own . For an excellent ( and much more technical ) review of these batteries , read the review by NLee the Enginner .
090 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I asked some people who use a lot of re-chargeable batteries what was the best choice . Most said to go with eneloop , and one person was emphatic : stick with something that says Pre-Charged , no matter what numbers they throw at you .
They were right - - these batteries hold a charge for as long regular disposables . Look no further , these are the ones you want .
092 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I use a Metz flash on my Canon 40D . It is a major battery hog . Before shooting an indoor wedding I put in a fresh set ( 4 AA ) of batteries . When using standard batteries I would need to change batteries between the ceremony and the reception . With these Sanyo Rechargeable Batteries I was able to do the Ceremony and all of the reception without needing to put in new batteries . Needless to say I am VERY happy with this product and recommend it for any item that is a battery hog .
093 4 I use a Metz flash on my Canon 40D . It is a major battery hog . Before shooting an indoor wedding I put in a fresh set ( 4 AA ) of batteries . When using standard batteries I would need to change batteries between the ceremony and the reception . With these Sanyo Rechargeable Batteries I was able to do the Ceremony and all of the reception without needing to put in new batteries . Needless to say I am VERY happy with this product and recommend it for any item that is a battery hog .
094 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
I received them this week and was surprised at the date on them and more so that when I put them in my remote they worked perfectly without recharging them . I think the advertising is true . I'll add an addendum if I find they do not last long or there is some other issue . As for now , I'm impressed .
097 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
Really like these batteries . They last a long time and hold there charge well . I was able to use right out of the box with great results . Don't get hung up on the 2000 mAh rating as they out perform my other 2650 mAh rechargeables . They truly work as advertised . Very pleased .
099 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I bought these batteries for my hubby . He really likes them . We use them all over the house . They seem to last longer than other rechareable batteries in high drain electronics . They're great for baby toys that go through batteries like crazy , too .
101 4 These batteries were suggested to me by my cousin who is a photographer . I explained to him I was getting very upset at charging my old rechargables ( both sets ) not using them and reaching for the camera a week later only to have dead batteries again . Age I am sure was a factor for the old sets but I like the fact that these only release charge when in use . The were charged right out of the box and I have used them for over three weeks . They are a little more pricey but well worth it . I bought an extra set and charger for the wii remotes that Santa is bringing for Christmas .
* * * * UPDATE * * * *
Now the end of October and still going strong without a recharge yet . I LOVE these batteries . I have to wait til Christmas to try the other sets in the Wii for my son .
103 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
4 out of 5 Stars ONLY because I just haven't used them long enough to give them 5 . Sanyo just has dominated the market in rechargeables for over a decade so they get 4 out of the box for me .
I used to race RC cars for a long time and Sanyo made the best batteries back then . I think they are the leader in that technology so I was pretty excited when I found these . I'm good about cycling ( running them out before charging ) even with Ni-MH batteries . It's a good practice that will exercise the battery and reduce the number of times you charge it . Charging and discharging produces heat . Heat is the enemy of batteries . We used to do this to prevent memory in Ni-CAD batteries . Which isn't an issue with Ni-MH batteries . So I'm not shy about short charging them if I have to . The Eneloops help in this respect because I don't have to worry about grabbing the backup set for my GPS or Camera and having them be dead from self discharging if they've been sitting in the bag for a few months . That's the selling point IMO . My other rechargeable batteries have been relegated to TV and other home remote control devices . The eneloops are in my key electronics .
If you have a charger already for other batteries , you're probably good to go without buying another for the Eneloops . Check the specs first though as using one can void the warranty on the batteries .
104 4 4 out of 5 Stars ONLY because I just haven't used them long enough to give them 5 . Sanyo just has dominated the market in rechargeables for over a decade so they get 4 out of the box for me .
I used to race RC cars for a long time and Sanyo made the best batteries back then . I think they are the leader in that technology so I was pretty excited when I found these . I'm good about cycling ( running them out before charging ) even with Ni-MH batteries . It's a good practice that will exercise the battery and reduce the number of times you charge it . Charging and discharging produces heat . Heat is the enemy of batteries . We used to do this to prevent memory in Ni-CAD batteries . Which isn't an issue with Ni-MH batteries . So I'm not shy about short charging them if I have to . The Eneloops help in this respect because I don't have to worry about grabbing the backup set for my GPS or Camera and having them be dead from self discharging if they've been sitting in the bag for a few months . That's the selling point IMO . My other rechargeable batteries have been relegated to TV and other home remote control devices . The eneloops are in my key electronics .
If you have a charger already for other batteries , you're probably good to go without buying another for the Eneloops . Check the specs first though as using one can void the warranty on the batteries .
105 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I am very satisfied with eneloop batteries . I tested them out and they exceeded their typical mAh ratings slightly . I have not tested how long they hold their charge yet , but they seem to hold their charge better than standard NiMH batteries . Sanyo batteries ( I am using eneloop AAA and Sanyo AA NiMH ) also have a lower failure rate than other batteries I have used so I am assuming the eneloop AA will have a low failure rate also . I plan to switch over to eneloop batteries for all new purchases .
106 4 I am very satisfied with eneloop batteries . I tested them out and they exceeded their typical mAh ratings slightly . I have not tested how long they hold their charge yet , but they seem to hold their charge better than standard NiMH batteries . Sanyo batteries ( I am using eneloop AAA and Sanyo AA NiMH ) also have a lower failure rate than other batteries I have used so I am assuming the eneloop AA will have a low failure rate also . I plan to switch over to eneloop batteries for all new purchases .
110 4 The best NIMH batteries I have purchased . I have several devices that I
run on AA batteries and have tried many brands . The Sanyo Eneloop will not lose as much charge level while not in use as the other brands . My experience has been charge , store , and when used the power level is not significantly less as if they just came out of a charger . Great Product .
112 4 I purchased a set of 4 these batteries from a dealer in Singapore a year ago and have been using them in a TV remote ever since with no initial charge . I have about 75% charge still on that set . When the batteries were released in the US last September I purchased a set with charger and stuck them in my Canon A620 camera . I was able to take 375 pictures before I had to recharge them , about what I would expect from a 2000mAh battery . I have now purchased 2 8 - packs to keep for emergencies . Eneloop batteries also do very well in LED flashlights . I expect as the technology matures , the capacity will increase on par with standard NiMH batteries .
113 4 These are great ! I have 4 Wii remotes , a Wavebird and numerous other devices constantly needing AA batteries . The problem with most rechargeables is how quickly they lose charge when not in use . These are supposed to hold their charge better . Well , they haven't run out yet , and I've already gone through a set of Duracell rechargeables and a set of Energizer rechargeables .
Plus they look cool .
115 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
These new eneloops are very nice for the mere fact that I don't have to worry if my rechargeables are dead or not . Wish they had a higher amp hour rating , but overall I am happy .
117 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I bought these batteries almost 2 years ago .
I use them for the Xbox 360 .
After 2 years they still work perfectly , and so does the charger .
They dont event take too long to charge ! What a $ $ $ $ saver these are !
I ordered another set for my brother , for myself . Next time I need some re-chargable batteries , I am definetly buying these . I cant beleive after 2 years ago they work as if they were brand new . VERY impressed .
119 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I bought several sets of these batteries a year or so ago and have been testing them in our real-world environment in the house where my kids go through batteries almost as fast as they go through shoes . We use the batteries in wireless controllers for video games , digital cameras and other household electronics devices .
I let the kids treat the batteries as disposables ( just that they need to bring them back to me when the get new ones from the battery drawer ) and they change them as necessary . I take the used batteries , charge them up and put them back in the battery drawer for subsequent use . Keeping some ready-spares makes this entire process work . This also keeps the kids from having to wait to recharge the batteries since they have ready replacements .
This is all enabled by having rechargeable batteries that don't lose their charge while sitting in the drawer and this has worked very well for us .
We haven't measured how long they last , but the general feeling is that they last at least as long as typical alkaline batteries ( and in some devices like digital cameras they last much longer ) .
I've recently bought more of these batteries - - not because we're replacing the old batteries but because I went to lengthen the pool of spare batteries so we can put these into more and more of our devices in / about the house .
Very happy with these batteries and strongly recommend that if you use batteries in your house you switch over to using these type of batteries rather than continuing with traditional batteries ( for cost , environmental , * and * convenience reasons ) .
120 4 I bought several sets of these batteries a year or so ago and have been testing them in our real-world environment in the house where my kids go through batteries almost as fast as they go through shoes . We use the batteries in wireless controllers for video games , digital cameras and other household electronics devices .
I let the kids treat the batteries as disposables ( just that they need to bring them back to me when the get new ones from the battery drawer ) and they change them as necessary . I take the used batteries , charge them up and put them back in the battery drawer for subsequent use . Keeping some ready-spares makes this entire process work . This also keeps the kids from having to wait to recharge the batteries since they have ready replacements .
This is all enabled by having rechargeable batteries that don't lose their charge while sitting in the drawer and this has worked very well for us .
We haven't measured how long they last , but the general feeling is that they last at least as long as typical alkaline batteries ( and in some devices like digital cameras they last much longer ) .
I've recently bought more of these batteries - - not because we're replacing the old batteries but because I went to lengthen the pool of spare batteries so we can put these into more and more of our devices in / about the house .
Very happy with these batteries and strongly recommend that if you use batteries in your house you switch over to using these type of batteries rather than continuing with traditional batteries ( for cost , environmental , * and * convenience reasons ) .
121 4 The one attribute of the Sanyo Eneloop cell that doesn't get adequate billing , imho , is its low internal resistance . For most of my battery-powered appliances it doesn't matter which brand of cell I use . Then I bought a particular Kodak camera ( Z812IS ) that was loaded to the hilt with power-hungry features . To my great dismay , the only battery solution that would power the darn thing was ( surprise , surprise ) an expensive disposable lithium battery pack from Kodak . None of my NiMH cells , no matter how high their capacity , would power the camera for more than a few moments . Most would not even allow the camera to turn on . So the camera has been collecting dust in my sock drawer for more than a year .
Last week I got the bug to try the Eneloop cell when I read in Wikipedia that LSD NiMH cells have a lower internal resistance than regular NiMH , and that Sanyo was the innovator of this technology .
The cells arrived , I charged them to 100% capacity ( with the Sanyo charger ) and put them in the camera . Camera turned on . I went around the house taking pictures of everything . Camera performed perfectly . Next day I pulled the camera out ( of the sock drawer ) again and took a whole series of outdoor pictures . Everything worked perfectly . Next day , same story . It's a week later and I'm still on the original charge . For this particular camera , that's stunning ! Capacity schimacity . What made all the difference here was low internal resistance . Thank goodness for Sanyo innovation !
122 4 I first ran into Sanyo Eneloops when they were marked down for a huge discount at a big-box store because no one was buying them . It always amuses me how we ( people ) can be so slow to accept something beyond the familiar . Since then I have learned to prefer them to every other brand of rechargables , pre-charged or not . ( And I've tried every leading brand available ) . I even prefer the bundled Eneloop charger to the other more famous charger I had been using . The white design is aesthetically pleasant to boot . Although I have used some AAs rated for 2650 mah , in real life , these Eneloops seem to keep up with them , and far surpass any other 2000 or 2100 mah rated batteries . I have used them in my 20x super-zoom 10 - megapixel digital camera to fill an 8 - Gigabyte SDHC and never ran low on power . Whether it was hours of video recording or even several thousand still images , these have always had the juice I needed . I especially like them because I can leave them in the camera for weeks at a time , and when something comes up suddenly , I don't have to worry if they've gone flat since the last recharge . The only things I wouldn't use them in would be either a smoke detector ( or similar device ) or quartz-regulated clock , or maybe a remote control because they have such a low current drain and you don't want to change them more often than once a year . However , for mp3 players and such , they are unsurpassed - - and for Digital Cameras , these are the L series of AA batteries .
123 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I found these batteries by reading customer opinions . ( That's why I take time to rate stuff . It helps the next guy ) I have tried many different batteries . It seemed I was always rotating batteries . Camera , charger , camera . A real pain . And you get ready for that big one time picture and the camera stops you cold and says Batteries Low . I thought that was just the deal until I bought these . I put them in the camera right out of the package weeks ago . Over a hundred pics . Using zoom , auto , flash . I just picked it up and snapped half a dozen for grins and chuckels and it worked fine , and the flash is still hot . I have no doubt these are the best for a camera user . If you are a pro they last longer , just more dependable . If you are like me and the camera may sit for weeks they are great because they are still hot . I bought a bunch and left four in a drawer just to see how they work a year from purchase . Oh yeah . The really cool part was they were cheaper . And I bought their charger because I don't know that yesterdays charger is set to charge these hotter batteries . I wish I could find one that had a real meter that would show actual numbers on a gauge . Not , orange , yellow , green . So far these have been the best I have found . That's after at least three different brands and maybe 50 battereies . Three different chargers .
125 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
I'm not an expert or battery afficionado like NLee the Engineer ( whose reviews on batteries and charging accessories have been surprisingly useful to me ! ) , but even the layperson can appreciate Sanyo Eneloop batteries . In short - - great purchase for use with slow-drain devices . Details below :
I've used the Energizer NiMH rechargeables for several years now - - in my Xbox controllers , remote control , mouse , keyboard , some flashlights . . . and so on .
I noticed that in some devices they were great , but that in low-drain ones like my remote control or mouse I was recharging way too frequently - - once every month or two . Some research revealed that typical NiMH batteries have great capacity , but lose a lot of their charge after they sit around for a while ( 1 - 3 months will kill a lot of the charge in the battery , even if it's not being used ) .
This wouldn't be too much of a problem except for the fact that NiMH cells only have a native voltage of 1.2v - - already low for some devices . Combine the lower voltage with charge that dips over time and you have a shorter than reasonable lifespan .
Enter eneloop batteries !
I started off with I think 8 AA cells and have now expanded to 16 AA and 8 AAA eneloop cells . I use them in my mouse , remote control , keyboard , and Xbox 360 controllers . They're great and last just as long as normal alkaline cells ! Definitely a worthy purchase for those frustrated by frequently switching out their normal NiMH cells in low-drain devices . Now , I use my normal NiMH cells in high-drain devices like flashlights and let me eneloops do the long-life work in my low-drain devices .
126 4 I'm not an expert or battery afficionado like NLee the Engineer ( whose reviews on batteries and charging accessories have been surprisingly useful to me ! ) , but even the layperson can appreciate Sanyo Eneloop batteries . In short - - great purchase for use with slow-drain devices . Details below :
I've used the Energizer NiMH rechargeables for several years now - - in my Xbox controllers , remote control , mouse , keyboard , some flashlights . . . and so on .
I noticed that in some devices they were great , but that in low-drain ones like my remote control or mouse I was recharging way too frequently - - once every month or two . Some research revealed that typical NiMH batteries have great capacity , but lose a lot of their charge after they sit around for a while ( 1 - 3 months will kill a lot of the charge in the battery , even if it's not being used ) .
This wouldn't be too much of a problem except for the fact that NiMH cells only have a native voltage of 1.2v - - already low for some devices . Combine the lower voltage with charge that dips over time and you have a shorter than reasonable lifespan .
Enter eneloop batteries !
I started off with I think 8 AA cells and have now expanded to 16 AA and 8 AAA eneloop cells . I use them in my mouse , remote control , keyboard , and Xbox 360 controllers . They're great and last just as long as normal alkaline cells ! Definitely a worthy purchase for those frustrated by frequently switching out their normal NiMH cells in low-drain devices . Now , I use my normal NiMH cells in high-drain devices like flashlights and let me eneloops do the long-life work in my low-drain devices .
127 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I've been using Eneloop batteries for about a year now and am really happy with them .
I initially bought them to use in camera flashes ( Canon Speedlite 580 EXII ) . I wanted something rechargeable because I'd be going through a lot of batteries and I wanted something that held its charge a long time because there might be long periods of time before I use a flash . They have performed as advertised . They are long lasting and hold their charge a long time while waiting in my camera bag .
I've gradually replaced all the AA ( and AAA ) batteries in my house with these as my old batteries have died . It is great to know that I don't have to buy new batteries for all my remotes , Wii controllers , flashlights , etc .
I felt vindicated when I read Consumer report's positive ratings for these batteries .
128 4 I've been using Eneloop batteries for about a year now and am really happy with them .
I initially bought them to use in camera flashes ( Canon Speedlite 580 EXII ) . I wanted something rechargeable because I'd be going through a lot of batteries and I wanted something that held its charge a long time because there might be long periods of time before I use a flash . They have performed as advertised . They are long lasting and hold their charge a long time while waiting in my camera bag .
I've gradually replaced all the AA ( and AAA ) batteries in my house with these as my old batteries have died . It is great to know that I don't have to buy new batteries for all my remotes , Wii controllers , flashlights , etc .
I felt vindicated when I read Consumer report's positive ratings for these batteries .
130 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I had used two other chargers before this - one was an hour charger which would shut down after 15 minutes and not charge and a value charger which would take over 24 hours and never shut off by it self so this charger is a true gem in comparison . It takes about 4 hours to charge a set of 4 and it will shut off by it self . I use batteries for my Nikon SB - 600 flashes and they work great .
132 4 I originally bought a packaged set of these batteries at Costco . It came with a charger and ' C ' and ' D ' sized adapters . The adapters hold the AA sized batteries inside and coenvert them to the larger cells . These batteries are charged out of the package and hold their charge for an extremely long time . This means , unlike other rechargeables , that once I charge them , I can ( and do ) pull them out of the drawer after six months and they are still charged ! ! ! They are also super powerful , and last a long time between charges while in the device . They outlast any other rechargeable I have EVER owned . . . in cameras , daughter's toys , remote control plane transmitter , TV remote , etc . They hold their charge as long as regular alkalines with an added benefit . . . they do not slowly poop out ! ! ! Most other batteries slowly die out causing the product they are used in to slowly lose functionality . This doesn't happen with these . . . they deliver full power right up until the battery is fully drained , so you don't lose performance as the battery discharges ! ! ! Obviously I can't say enough good things about these which is surprising since I have always had a bad taste in regard to rechargeable batteries . I love them so much , I bought two 8 - packs of AA size and four 4 - packs of AAA size from Amazon , in addition to my original Costco purchase . You won't regret your purchase ; they may be more expensive , but they last so long and can be charged over and over and over so many times that you save a lot of money over the life of the battery . I have been using / recharging my original set for over a year now with no performance drop !
133 4 I bought the Eneloop battery charger here on Amazon that comes with 4 AA batteries . The batteries worked great out of the package and held a strong charge for what seemed to be about as long as non-chargeable AA batteries . I was impressed .
After charging and discharging them several cycles , I am very happy with their power and long-lasting charge . It is also wonderful to not have to wait until the batteries are completely discharged to charge them again . That is a big plus .
When it came time to charge them the first time , I checked some reviews to find out how long it was supposed to take , and was disappointed to read several reviewers mention that the charger was a timer-based charger and not a smart charger that would be able to determine when the batteries were fully charged .
The lights on the charger stopped blinking after about 7.5 hours . I then decided to test them after a short while to see if the charger would just stay on again , so I put two of the newly charged batteries back in the charger , and I was surprised to see that it stopped charging after about 20 minutes . So apparently it isn't just a dumb timer based charger after all .
I have read that if a charger has to charge in pairs and only has one light for two batteries that it can't be a smart charger , only a dumb timer-based charger . I don't know if this charger is able to charge each battery in the pair to the perfect capacity . Perhaps it just charges until one of the pair reads a full charge . . . but that is still better than a timer-based charger .
I am very pleased with the performance of the Eneloop batteries and charger . Tthey are far superior to my old rechargeable batteries and my old charger that truly was a dumb timer charger . Highly recommended .
134 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
As an engineer , I find it offensive that people actually sell single use batteries or design devices that require single use batteries and the fact that people buy single use cells drives me insane .
Stuff like digital cameras and flashes , cell phones ( yeah , they used to use AAs a long time ago ) , remote controllers of all types , TOYS , flashlights . They should all use some type of rechargeable power because you use them a lot - you will be changing the batteries a lot .
Single-use batteries are expensive for that you get - the energy itself costs less than a penny . The label on the battery probably costs more than the actual energy is worth . Plus they are bad for the environment .
Unfortunately there really weren't any good alternatives to the single use Alkaline dry-cell . Lithium-ion / polymer is expensive , regular ( non-Eneloop ) Ni-MH leaked alot of energy overtime , and everything else was junk .
And then comes Sanyo with their advanced Ni-MH technology and they choose to market their stuff as pre-charged . C'mon . That's not even 1 / 10th of what these batteries are .
These batteries are high-current , making them great in flashes and digital cameras . They are low-discharge so you can use them in devices that previously only made sense with alkalines , like tv remote controls . They also have a very high power density - so they hold more juice that a regular alkaline . And you can recharge them up to 1000 times .
Want a great comparison that most of you guys can pull off ? Use the Eneloops in one of your Wii-controllers . Then use some ( ack ! ) Alkalines in the other controller . My fiancee and I play the Wii constantly . Alkalines last like 4 - 6 weeks depending on what we are playing . I charged up some Eneloops and put them in one of the Wii-trollers like 3 months ago and they are still going . Still at all power bars according to the Wii . Incredible .
135 4 As an engineer , I find it offensive that people actually sell single use batteries or design devices that require single use batteries and the fact that people buy single use cells drives me insane .
Stuff like digital cameras and flashes , cell phones ( yeah , they used to use AAs a long time ago ) , remote controllers of all types , TOYS , flashlights . They should all use some type of rechargeable power because you use them a lot - you will be changing the batteries a lot .
Single-use batteries are expensive for that you get - the energy itself costs less than a penny . The label on the battery probably costs more than the actual energy is worth . Plus they are bad for the environment .
Unfortunately there really weren't any good alternatives to the single use Alkaline dry-cell . Lithium-ion / polymer is expensive , regular ( non-Eneloop ) Ni-MH leaked alot of energy overtime , and everything else was junk .
And then comes Sanyo with their advanced Ni-MH technology and they choose to market their stuff as pre-charged . C'mon . That's not even 1 / 10th of what these batteries are .
These batteries are high-current , making them great in flashes and digital cameras . They are low-discharge so you can use them in devices that previously only made sense with alkalines , like tv remote controls . They also have a very high power density - so they hold more juice that a regular alkaline . And you can recharge them up to 1000 times .
Want a great comparison that most of you guys can pull off ? Use the Eneloops in one of your Wii-controllers . Then use some ( ack ! ) Alkalines in the other controller . My fiancee and I play the Wii constantly . Alkalines last like 4 - 6 weeks depending on what we are playing . I charged up some Eneloops and put them in one of the Wii-trollers like 3 months ago and they are still going . Still at all power bars according to the Wii . Incredible .
136 4 This review is from :
Sanyo Eneloop 2 Pack AA NiMH Pre-Charged Rechargeable Batteries w / Charger ( Electronics )
I already have a La Cross BC - 900 which is currently the Cadillac of chargers , but it is a bit large to travel with ( mostly due to it's large wall-wart ) . I was looking for a small travel charger that I could throw in my electronics bag , and I was also interested in the new rechargeables that don't self-discharge as rapidly as conventional NiMh . So this charger & batteries were right on time .
This charger is small enough to travel with , is multi-voltage so you can take it anywhere , will charge one or two batteries , either AA or AAA in any combination , and senses the voltage / time / heat to stop the charge when done - a smart charger . Unlike many chargers , it doesn't have a idiotic door covering the batteries and holding in damaging heat . And thankfully it doesn't have a wall-wart or cord ( the power plug prongs swing out for direct insertion into an outlet ) . The only thing I'd change about it is to make it even smaller if possible , but really that's just a quibble . It is also very light weight .
Charge current is 380mA for AAA , 550mA for AA , so it is more of an overnight charger . There is a single LED that goes out when both batteries are charged , and while I would have preferred two LEDs here ( one for each battery ) I guess I really don't need to disturb it until both are charged , so that's just another quibble .
137 4 I already have a La Cross BC - 900 which is currently the Cadillac of chargers , but it is a bit large to travel with ( mostly due to it's large wall-wart ) . I was looking for a small travel charger that I could throw in my electronics bag , and I was also interested in the new rechargeables that don't self-discharge as rapidly as conventional NiMh . So this charger & batteries were right on time .
This charger is small enough to travel with , is multi-voltage so you can take it anywhere , will charge one or two batteries , either AA or AAA in any combination , and senses the voltage / time / heat to stop the charge when done - a smart charger . Unlike many chargers , it doesn't have a idiotic door covering the batteries and holding in damaging heat . And thankfully it doesn't have a wall-wart or cord ( the power plug prongs swing out for direct insertion into an outlet ) . The only thing I'd change about it is to make it even smaller if possible , but really that's just a quibble . It is also very light weight .
Charge current is 380mA for AAA , 550mA for AA , so it is more of an overnight charger . There is a single LED that goes out when both batteries are charged , and while I would have preferred two LEDs here ( one for each battery ) I guess I really don't need to disturb it until both are charged , so that's just another quibble .
138 4 I purchased these batteries specifically for my Canon PowerShot A570 IS and they work perfectly . That camera is finicky about battery amperage . It shows a low battery indicator and will shut down as if the batteries are dead after just a couple pictures with standard and other NiMH AA batteries I have tried . I was about to return the camera but these batteries saved the day . I have been using them consistently for over 2 months without any performance issues .
142 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
At $15 for a 4 - pack it's a good deal .
If it ever goes back to $10 / 4pack , buy em all , stock up , give em away !
I'm never going back again to those old crappy batteries ! I bought these as an alternative to the Xbox 360 controller charge kit , and have no regrets . Now I put them in everything I can . . . that I think I can get the batteries back from ! The biggest issue is losing them .
Why bother buying alkaline ? The hype is true enough . Time to move .
144 4 I have a ton of electronic gadgets at home . Some of them being several weather stations and atomic clocks . After reading about these Eneloops , I thought they might solve the annoying problem of having to recharge and re-set the weather stations and their sensors every few months . Well , to make it short , I was wrong . These Eneloops last exactly as long as the Energizer NiMH AAA's that I used before .
I also bought some AA Eneloops for my Canon 720is which travels with me everywhere ( I travel at least 5 times a month overseas ) . These did even worse , they lasted maybe a third of the time that the Energizer AA 2500 ' s do .
I have to give them a low rating , because for me , they don't do what they claim . I'm not sure what the reason is ( I have a Lacrosse BC - 900 charger and charge them gently to capacity ) , maybe the voltage drops faster even though it has some capacity left , and the electronic devices then shut off ? I don't know . But to me it's not worth the extra money for these Eneloops .
145 4 I did a lot of research on charger / battery kits as I wanted
to go completely ( as far as practical ) to NiMH rechargeable batteries .
I decided after reading many blogs and reviews that Sanyo was the way to go .
I use or will use NiMH for my consumer products and my electronic projects .
I'm a hardware hacker on the cheap so I try to get the best deal I can for my money . Anyway , I bought this kit because I was impressed by the quality of the batteries and the smart charger for about $25 bucks and free shipping .
I just got the kit and I was very pleased . I popped open the charger and
it is definitely intelligent . What drives the charger is a 4 - bit micro controller interfaced with an analog chip and a lot of passive components . I also was impressed that the batteries were made in Japan .
I saw a video on how they were made - cool ! I was also impressed that
there was a toll free number on the battery to arrange for recycling of the battery . I've always liked Sanyo products for their value to cost .
I had to mail order this as NO major store in the Minneapolis area stocked it ( as far as my research went ) . Every store I went to or called
only carried Duracell or Energizer , or sometimes Rayovac NiMH .
I'm a little P.O . ' d about how they dominate the big box stores .
Btw , If I HAD to buy rechargeable ' AA ' NiMH batteries locally I would buy the Rayovac Hybrids . From their specs . they seem come closest to the Sanyo Enelopes .
Other than that Sanyo Rules ( IMHO ) when it comes to rechargeables .
Betageek612
146 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
These cells come fully charged . I have two in my xbox 360 controller . They last much longer than my other larger capacity AA rechargables . Once my xbox controller starts to flash the low battery indication , I check the voltage on each cell . They are almost identical ~ 1.13v . Normally these higher capacity cells don't run out at the same time , I'm impressed . Then I charged them at 1.5 amps using separate peak detecting chargers . They both peaked within 1 minute of each other , impressed again .
I like what I see , these are super low self discharge and they have almost identical charge / discharge / capacity characteristics . I recommend these to anyone .
147 4 These cells come fully charged . I have two in my xbox 360 controller . They last much longer than my other larger capacity AA rechargables . Once my xbox controller starts to flash the low battery indication , I check the voltage on each cell . They are almost identical ~ 1.13v . Normally these higher capacity cells don't run out at the same time , I'm impressed . Then I charged them at 1.5 amps using separate peak detecting chargers . They both peaked within 1 minute of each other , impressed again .
I like what I see , these are super low self discharge and they have almost identical charge / discharge / capacity characteristics . I recommend these to anyone .
148 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
Finally , a NiMH technology that can rival alkaline batteries . A problem with NiMH is that the self discharge rate make it unsuitable for low power uses that you'd still use alkaline's for : e.g . remote controls and flashlights . Because ordinary NiMH will self discharge ~ 1 - 3% / day without use , the battery can run down in ~ 1 - 3 mo even if unused . Eneloops hold a charge over a year , so it can replace most alkaline cell applications . In the old days , I'd wish for cells with more mAH , but as better digital cameras and other AA devices have become more power frugal , being able to charge and store a bunch of eneloops is more convenient that fast charging ordinary NiMH or using them very soon after charging , to maximize their mAH .
Here a quickie on 1 week worth of tests using a
Powerex WizardOne aa / aaa NiMH Battery Charger-Analyzer
.
New Cells in a box : freshly unwrapped , all 4 cells delivered about 1400mAH .
An IEC 61951 - 2 charge test showed all 4 cells rated > = 1950mAH , as promised on the battery labels .
At 1A discharge , the cells delivered > 1700mAH . At 500mA , the cells delivered > 1800mAH .
After 1 week of storage , the cells were still ~ 1900mAH , ~ zero loss in 7 days . I had a group of standard NiMH cells charged fresh with the eneloops , and they were down 20% in the same period [ these are also older cells ] . My standard NiMH mAH would drop much when subject to heavy discharge loads , such as the 1A and 2A .
The eneloops perform just like any NiMH is expected too , but with that marvelous low self discharge rate . Granted 1 week is not 1 year worth of storage , but the difference in self discharge rate between these old NiMH I had , and my over 10 years of use of NiMHs , make the 0% / week discharge rate for the eneloops a good sample of what I can expect over a year .
149 4 Finally , a NiMH technology that can rival alkaline batteries . A problem with NiMH is that the self discharge rate make it unsuitable for low power uses that you'd still use alkaline's for : e.g . remote controls and flashlights . Because ordinary NiMH will self discharge ~ 1 - 3% / day without use , the battery can run down in ~ 1 - 3 mo even if unused . Eneloops hold a charge over a year , so it can replace most alkaline cell applications . In the old days , I'd wish for cells with more mAH , but as better digital cameras and other AA devices have become more power frugal , being able to charge and store a bunch of eneloops is more convenient that fast charging ordinary NiMH or using them very soon after charging , to maximize their mAH .
Here a quickie on 1 week worth of tests using a
Powerex WizardOne aa / aaa NiMH Battery Charger-Analyzer
.
New Cells in a box : freshly unwrapped , all 4 cells delivered about 1400mAH .
An IEC 61951 - 2 charge test showed all 4 cells rated > = 1950mAH , as promised on the battery labels .
At 1A discharge , the cells delivered > 1700mAH . At 500mA , the cells delivered > 1800mAH .
After 1 week of storage , the cells were still ~ 1900mAH , ~ zero loss in 7 days . I had a group of standard NiMH cells charged fresh with the eneloops , and they were down 20% in the same period [ these are also older cells ] . My standard NiMH mAH would drop much when subject to heavy discharge loads , such as the 1A and 2A .
The eneloops perform just like any NiMH is expected too , but with that marvelous low self discharge rate . Granted 1 week is not 1 year worth of storage , but the difference in self discharge rate between these old NiMH I had , and my over 10 years of use of NiMHs , make the 0% / week discharge rate for the eneloops a good sample of what I can expect over a year .
150 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
These batteries are simply fantastic . They pack is so much more juice than regular AA batteries from Duracell or Engergizer . We used these in our son's radio controlled car , and the speed on the car , compared to using brand new Energizer AA batteries , was far superior - there is just no comparison . Also , the regular AA batteries were wasted in the car within a few hours of use . We get close to 3 full days of rigorous with these batteries . The best part is that they are rechargeable ! Totally worth the investment ! Very happy with this item and highly recommend to all shoppers .
151 4 These batteries are simply fantastic . They pack is so much more juice than regular AA batteries from Duracell or Engergizer . We used these in our son's radio controlled car , and the speed on the car , compared to using brand new Energizer AA batteries , was far superior - there is just no comparison . Also , the regular AA batteries were wasted in the car within a few hours of use . We get close to 3 full days of rigorous with these batteries . The best part is that they are rechargeable ! Totally worth the investment ! Very happy with this item and highly recommend to all shoppers .
152 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
This product is the best invention since sliced bread ! ! I kid you not ! ! ! My one and only regret is that I didn't buy these batteries 6 months ago when I bought my Wii . We have 4 Wii remotes that receive a moderate amount of use ( 2 to 4 hours and sometimes a lot more ) at least 4 or 5 days a week . I bought this 4 remote rechargeable battery system which worked OK . I was recharging the Wii's rechargeable batteries daily . These batteries may cost a few pennies more but last a lot longer and hold a charge longer when not in use . I don't have to stop playing a game to recharge a battery any more . Now I only recharge the batteries once or twice a week under the same playing conditions .
154 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
We were really getting sick of the Wii rechargeable batteries dying so quickly , and we were using a lot of conventional AA batteries as back-up which was very wasteful . Note that I discovered that though the Wii remotes use AA batteries , the recharge units use AAA's which last much less time .
Happily , I found the Eneloops on Amazon with rave reviews . Previously , I'd thought that rechargeables would either not last as long as a regular battery per charge or would simply get worse and worse till they wouldn't hold a charge at all .
Nope ! These work like a champ . We only have four sets of the AA's ( 8 total ) for the Wii remotes - and they're fantastic ! We never have to revert to conventional for these again !
I bought 4 AAA's for my little Zeno mini , which previously wouldn't operate after about 8 - 10 uses on a new battery . The first few charges I used the Eneloops in the Zeno , it worked for about the same amount of time . But for some reason , it now lasts 15 - 18 or so uses . Sweet . Even if it didn't last long , I am happy I don't have to buy and throw away batteries so frequently .
Very happy with the Eneloops !
155 4 We were really getting sick of the Wii rechargeable batteries dying so quickly , and we were using a lot of conventional AA batteries as back-up which was very wasteful . Note that I discovered that though the Wii remotes use AA batteries , the recharge units use AAA's which last much less time .
Happily , I found the Eneloops on Amazon with rave reviews . Previously , I'd thought that rechargeables would either not last as long as a regular battery per charge or would simply get worse and worse till they wouldn't hold a charge at all .
Nope ! These work like a champ . We only have four sets of the AA's ( 8 total ) for the Wii remotes - and they're fantastic ! We never have to revert to conventional for these again !
I bought 4 AAA's for my little Zeno mini , which previously wouldn't operate after about 8 - 10 uses on a new battery . The first few charges I used the Eneloops in the Zeno , it worked for about the same amount of time . But for some reason , it now lasts 15 - 18 or so uses . Sweet . Even if it didn't last long , I am happy I don't have to buy and throw away batteries so frequently .
Very happy with the Eneloops !
156 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I was skeptical about the claims Sanyo made about these batteries , but I tried them out myself and they have held up . I can leave the batteries in my camera case for months and they lose practically no charge . Every other NiMH battery I've had needed to be recharged every couple months , otherwise they'd die very quickly when I started using them . These are great batteries to have for devices you don't use on a regular basis .
157 4 I was skeptical about the claims Sanyo made about these batteries , but I tried them out myself and they have held up . I can leave the batteries in my camera case for months and they lose practically no charge . Every other NiMH battery I've had needed to be recharged every couple months , otherwise they'd die very quickly when I started using them . These are great batteries to have for devices you don't use on a regular basis .
158 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
It does a decent job . The only problem is , when i fully charge this batteries and insert them to my controller , the controller shows that the power is 3 / 5 . That's the only reason i gave it 4 stars instead of 5 . But overall , the product is much cheaper then outside stores , as in Radio shack they where $20 .
160 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I will only buy these rechargeables from now on . They are the only ones powerful enough for my Canon 580 flash .
162 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I use these batteries in my electric toothbrush . After a few months of use , I noticed these batteries last much longer than the Duracell alkalines that I used to use .
After four months of regular use , I've only had to change the batteries once . They've lasted so long , I haven't even gotten the opportunity to try out the charger yet .
164 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
We got these batteries to use in our Wii and XBox 360 controllers and they work great ! They seem to hold a charge as long as the proprietary battery packs , yet they are a lot cheaper .
The biggest problem with normal rechargeables is that every time I picked up a controller to play the batteries were dead . With these that is not an issue at all .
I highly recommend these .
166 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
Have had good experience with Sanyo enelope rechargeables , and decided to get this to use in my Pentax DSLR as these were the most recommended of rechargeables for the camera . The batteries hold the charge well , and the new charger is a welcome improvement to my 3 + year old Panasonic charger . The new charger is able to charge two batteries as seperate set , compared to my current charger which charges all four as one . There is a more slimmer model charger made by Sanyo which is capable of charging each battery independently but the charger only works with 110V which does not make it a great travel charger , which is why I opted for this charger as universal compability in voltage was important to me . Note though the charger is not a quick charger , and takes a few hours to charge a set of batteries .
168 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
I started buying Eneloops when they were semi-new to the market a couple of years back , and have bought every one of them here at Amazon . I now own in upwards of 30 AA and 25 AAA Eneloops . I have refrained from writing a review of these until now - one of the reasons being that I wanted to see how they withstood the ultimate test for batteries - TIME !
Bottom line - these batteries of reliable , hold a charge for as long as any other rechargeable , and recharge back to original power without memory . I have been charging these with the Lacrosse charger ( BC - 9009 ) and always discharge first , then trickle charge at low amperage . These are a high quality battery , and have virtually replaced the need for Alkalines in my household due to the fact they hold their charge for so long on the shelf !
169 4 I started buying Eneloops when they were semi-new to the market a couple of years back , and have bought every one of them here at Amazon . I now own in upwards of 30 AA and 25 AAA Eneloops . I have refrained from writing a review of these until now - one of the reasons being that I wanted to see how they withstood the ultimate test for batteries - TIME !
Bottom line - these batteries of reliable , hold a charge for as long as any other rechargeable , and recharge back to original power without memory . I have been charging these with the Lacrosse charger ( BC - 9009 ) and always discharge first , then trickle charge at low amperage . These are a high quality battery , and have virtually replaced the need for Alkalines in my household due to the fact they hold their charge for so long on the shelf !
170 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I'm a professional Photographer that depends on batteries that go long for a long time . These NiMH are really great batteries . Long Long Long lasting . The only change needed is the price . Competitors with comparable product are coming down on price , and Eneloop needs to do the same . On my next purchase I'll go who has the best price .
171 4 I'm a professional Photographer that depends on batteries that go long for a long time . These NiMH are really great batteries . Long Long Long lasting . The only change needed is the price . Competitors with comparable product are coming down on price , and Eneloop needs to do the same . On my next purchase I'll go who has the best price .
172 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I am a dad with 2 kids . Two years ago I made the decision to switch to rechargeable batteries , because of the large number of AA batteries we were plowing through . . .
At the time , I read all the articles , and agonized over which batteries , which charger , etc . . .
This is just my follow up to say that I have been using the Eneloop batteries for the last 2 years ( along with a MAHA MH-C401FS charger ) . They have been exactly what I needed . They hold a charge great , quick to recharge , and no hassles .
Most importantly , they just do what you need a rechargeable battery to do - WORK .
I pop these in my kid's camera , and they last for 2 months or more . If you have ever seen a kid play with a digital camera , you know that's impressive .
Anyway , I'm not an engineer , but I just wanted to throw out my own experience , and say that , yes , these do the trick .
Regarding the charger , the only down side that I have noticed is that the batteries can get warm when charging . However , I always charge on Fast mode , so I'm not exactly surprised .
173 4 I am a dad with 2 kids . Two years ago I made the decision to switch to rechargeable batteries , because of the large number of AA batteries we were plowing through . . .
At the time , I read all the articles , and agonized over which batteries , which charger , etc . . .
This is just my follow up to say that I have been using the Eneloop batteries for the last 2 years ( along with a MAHA MH-C401FS charger ) . They have been exactly what I needed . They hold a charge great , quick to recharge , and no hassles .
Most importantly , they just do what you need a rechargeable battery to do - WORK .
I pop these in my kid's camera , and they last for 2 months or more . If you have ever seen a kid play with a digital camera , you know that's impressive .
Anyway , I'm not an engineer , but I just wanted to throw out my own experience , and say that , yes , these do the trick .
Regarding the charger , the only down side that I have noticed is that the batteries can get warm when charging . However , I always charge on Fast mode , so I'm not exactly surprised .
176 4 No problems , opened the pack , put them in my Wii remotes and everything worked fine . Time will only tell how many recharges I get out of them but so far they work as advertised . Hopefully I'll never have to buy regular AA batteries again .
177 4 I use these in my Canon 430EX II flash unit , and they work great . Recycle times are really quick . I don't know exactly how many shots a single charge is good for because the most I've done in a single session was around 400 shots and the batteries were still going strong .
Sanyo eneloop batteries lose their charge much more slowly than regular NiMH batteries , so I don't have to bother charging them again just before using them . This isn't an issue for those who shoot photos all the time , but I don't use my flash every day so this is a nice benefit .
The charger is reasonably fast . It takes 3 hours to charge 4 batteries . Chargers that are quicker than that usually put too much strain on the batteries and decrease their lifetime . It can also charge AAA batteries , which is nice .
179 4 The manufacturer say these batteries come pre-charged and can be used immediately . They also say that the batteries hold their charge for a long time . I was hesitant to use them without charging them first because I did not want the batteries to run out when I was in the middle of using my digital camera . I used them as-is anyway , and carried spares .
Since I bought them , I have taken hundreds of pictures ( mostly without flash ) on several vacations spaced apart by several months . I wish I could tell you how many months or years these hold a charge or how many digital photos I could take on a single charge , but I still have not charged them .
I've never had anything come close to what these have done so far .
180 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
I've been using Eneloop rechargeable batteries for several years now , mainly in flashlights ( every night on my bicycle commute home ) and digital cameras , and have had excellent results . They hold their charge very well , even if not used for months at a time .
I do follow the general rule that you should do a full discharge ( followed by a full charge ) every 3 - 4 months to re-form the cell , but other than that there is very little maintenance required .
This 4 cell charger works very well , but it should be noted that it only has 2 charging circuits ( not 4 ) , so it will only charge the batteries in pairs ( no single cell charging ) . If you need a charger that will charge a single AA or AAA cell then get the 2 cell charger , model # SEC-MDR02TG3U .
There are other more expensive chargers available that have break-in and discharge modes ( among other things ) , but for general use I've found this little charger / battery combo to be an excellent value .
181 4 I've been using Eneloop rechargeable batteries for several years now , mainly in flashlights ( every night on my bicycle commute home ) and digital cameras , and have had excellent results . They hold their charge very well , even if not used for months at a time .
I do follow the general rule that you should do a full discharge ( followed by a full charge ) every 3 - 4 months to re-form the cell , but other than that there is very little maintenance required .
This 4 cell charger works very well , but it should be noted that it only has 2 charging circuits ( not 4 ) , so it will only charge the batteries in pairs ( no single cell charging ) . If you need a charger that will charge a single AA or AAA cell then get the 2 cell charger , model # SEC-MDR02TG3U .
There are other more expensive chargers available that have break-in and discharge modes ( among other things ) , but for general use I've found this little charger / battery combo to be an excellent value .
188 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
I think I am up to owning 24 of these batteries now . I use them for wedding photography . One set of four has almost made it through an entire wedding in the flash . When I have them in my flash battery pack , I can get by with one complete set .
Don't be fooled when battery shopping , just looking at the maH . Do yourself a favor , and get yourself a nice charger ( LaCrosse 700 or 900 ) and it'll show you what the true maH rating is , and charge the batteries properly .
I am reminded how poor regular NiMH batteries are at the office where we use rechargeables for our cordless mice . The batteries we use for them last no more than a week in a cordless mouse ! I can use my eneloops after sitting for months in my flash for hundreds of pictures .
189 4 I think I am up to owning 24 of these batteries now . I use them for wedding photography . One set of four has almost made it through an entire wedding in the flash . When I have them in my flash battery pack , I can get by with one complete set .
Don't be fooled when battery shopping , just looking at the maH . Do yourself a favor , and get yourself a nice charger ( LaCrosse 700 or 900 ) and it'll show you what the true maH rating is , and charge the batteries properly .
I am reminded how poor regular NiMH batteries are at the office where we use rechargeables for our cordless mice . The batteries we use for them last no more than a week in a cordless mouse ! I can use my eneloops after sitting for months in my flash for hundreds of pictures .
190 4 I loved a canon camera but was hesitant in buying it as it used AA battery . After a little research I came to know about these eneloop batteries . I bought them and I bought another set as backup .
I have never required those back up batteries . I always end up clicking 250 pics in a day . I never saw the low battery sign on my amera .
On my last trip I clicked 515 pics . Still the battery was good . We even watched all the photos couple of times while traveling . For the first time I saw the low battery sign after all this .
All my friends hv now decided to switch to these batteries . Very Very happy with the purchase .
194 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
My wife and I own a small photography business , and when we got our new external flash about nine months ago , we had to get some AA batteries to power it . The flash is a
Canon Speedlite 430EX II Flash for Canon Digital SLR Cameras
; it is capable of a pretty small recycling time after each photo , so we were looking for something that could keep up .
I usually get rechargeable battery packs when I can , but the flash required regular AAs , and when I looked around at the options , I saw a lot of good things said about the Eneloop line . Decided to give it a shot and ordered eight ( four in the flash , four standby ) .
We have done many small shoots and one large wedding , and four of these AA batteries have taken several hundred photos in one day without having to be replaced . They do hold a charge fairly well , though these are the first rechargeable AA batteries I've bought in many years , so I don't have much to which I could compare it . It keeps up well with the flash recycling time .
I'm planning on getting another four to power a Wii Balance Board ( NiMH is the only type of rechargeable battery mentioned in the manual ) . Highly recommended .
195 4 My wife and I own a small photography business , and when we got our new external flash about nine months ago , we had to get some AA batteries to power it . The flash is a
Canon Speedlite 430EX II Flash for Canon Digital SLR Cameras
; it is capable of a pretty small recycling time after each photo , so we were looking for something that could keep up .
I usually get rechargeable battery packs when I can , but the flash required regular AAs , and when I looked around at the options , I saw a lot of good things said about the Eneloop line . Decided to give it a shot and ordered eight ( four in the flash , four standby ) .
We have done many small shoots and one large wedding , and four of these AA batteries have taken several hundred photos in one day without having to be replaced . They do hold a charge fairly well , though these are the first rechargeable AA batteries I've bought in many years , so I don't have much to which I could compare it . It keeps up well with the flash recycling time .
I'm planning on getting another four to power a Wii Balance Board ( NiMH is the only type of rechargeable battery mentioned in the manual ) . Highly recommended .
196 4 This review is from :
Sanyo Eneloop 8 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Accessory )
Solid high quality batteries .
I did a capacity test of all the batteries using my LaCrosse charger and most came out around 1940mAh , one was 1900mAh , and one was 2000mAh . Sanyo states the batteries as being 2000mAh with a minimum charge of 1900 , so I guess they are telling the truth , except that I was hoping ' most ' of the batteries would be at 2000 , because from what I measured the advertised capacity should be listed as 1940 instead . . .
198 4 This review is from :
Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries ( 4 Pack ) ( Electronics )
These batteries are the best . You can use them in anything from cameras on down to remote controls , and they don't suddenly wind up dead in a week like normal rechargeables . I highly recommend them .
200 4 NOTE : Review is for the AA batteries , if it matters .
I bought these batteries and the charger for one purpose , to replace the rechargeable battery pack in the controllers for my Xbox 360 console . That rechargeable battery pack was dying after only a week's use of moderate gaming .
Fresh out of the package , I was able to get two weeks use out of the Eneloop , without charging them . The difference in weight ( the Eneloops weigh less than the regular battery pack ) is also a nice benefit . I use my Xbox 360 about 3 hours each day , with slightly heavier usage on the weekends ( about 5 - 6 hours per day ) . When not in use , I leave the batteries in my controllers , I do not take them out . And as stated previously , they have lasted about 2 weeks before needing to be recharged .
This leads me to believe that in a low drain device such as TV remotes , the Eneloops should last a few months if not longer . But this is just a hypothesis as I'm my results are skewed by my nightly gaming sessions , which obviously place a much larger drain on the battery's capacity . Still , getting double the amount of usage over the proprietary battery pack that costs about as much as this item .
Overall , I am very happy with their performance .
201 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I love these batteries . I use them in remotes ( DVD player , TV , etc ) , wireless mouse and for my Nintendo Wii . In the Wii remote , they last forever , especially when you don't use the infrared camera ( pointing at the screen ) that much . Just using the accelerometer uses very little power . It depends on the Wii game .
You can recharge them several times so it is less expensive than to keep buying alkaline batteries . It is also better for the environment .
Note : They may not last as long in high current devices ( like motors ) because I think they were designed for low current devices such as bluetooth devices , TV remotes , etc . I need test them out on high current devices .
202 4 I love these batteries . I use them in remotes ( DVD player , TV , etc ) , wireless mouse and for my Nintendo Wii . In the Wii remote , they last forever , especially when you don't use the infrared camera ( pointing at the screen ) that much . Just using the accelerometer uses very little power . It depends on the Wii game .
You can recharge them several times so it is less expensive than to keep buying alkaline batteries . It is also better for the environment .
Note : They may not last as long in high current devices ( like motors ) because I think they were designed for low current devices such as bluetooth devices , TV remotes , etc . I need test them out on high current devices .
203 4 As I googled the Internet and Forums , I found mixed result , some people claims Eneloop performs better , and some claims otherwise . Therefore I decided to do an experiment on both of these batteries to find out which one is a BETTER PERFORMER and better for investment .
Objective : To find out the better performer battery
Items :
1 . Four pieces of Sanyo Eneloop AA 2000mAh NiMH Battery
2 . Four pieces of PowerEx Imedion AA 2100mAh NiMH Battery
3 . Nikon Speedlight SB - 800
4 . Remote Flash Trigger
5 . Process recording device ( Sony DSC-P10 )
Methodology :
1 . Fully Charge the battery
2 . Insert battery into Nikon Speedlight SB800
3 . Nikon Speedlight SB - 800 set to M 1 / 4 - oEV
4 . Fire the Speedlight as soon as it is ready ( when the red light is on )
5 . Repeat step #3 until the battery is completely depleted
6 . Record the following :
a . X number of shots per minute after X number of shots
b . Total shots per charge
7 . Repeat the process with next set of battery
To ensure both battery both are in identical optimal condition , I bought both new set of Eneloop and Imedion . Both sets are new and fully charged for 8 hours as recommended by manufacturer for initial use with the same PowerEx MH-C204W Travel Charger before begin the test .
Please refer to the graph in my site .
I started off with Eneloop with a recorded blazing fast 60 round per minute ( rpm ) . It drops to 53rpm after the first 100 shots , and then it drops further to 52rpm after 200 shots . It stabilized at average of 45rpm from 300 shots to 1300 shots . It drops to 39rpm at 1400 shots and drops further to 37rpm after 1500 shots . Finally it drops sharply but still managed to squeeze a total recorded 1564 shots . Pretty impressive for first round .
I followed by Imedion immediately . At the initial minute it has a noticeable lower refresh rate compared with Eneloop and I recorded a 51rpm for the first minute , lower than Eneloop 9rpm . It then dropped 20% performance to 42rpm after the first 100 shots . After 200 shots , it stabilized at average of 39rpm from 200 shots to 1200 shots ( compared to 45rpm Eneloop ) . It drops slightly to 36rpm after 1300 shots to 1500 shots . Then it drops further down to 17rpm after 1600 shots . Finally it is completely depleted at 1660 shots .
Conclusion :
Eneloop completed at 1564 shoots and Imedion completed at 1660 , approximately 100 shots more than Eneloop , which is pretty much expected as it is a 2100mAh vs 2000mAh , with approximately 5% extra power . For a fair comparison , I only benchmark up to 1500 shots , which is already beyond what average number of photos a person can take on a whole day event ( with speedlight )
On cycle performance point of view , Eneloop out performed Imedion from 4rpm to 14rpm with an amazing everage of 6rpm on a consistant performance .
In this experiment , I concluded that the Sanyo Eneloop is a better performer than PowerEx Imedion , at least in speedlight point of view .
[ . . . ]
204 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I purchased a Canon A590IS P & S camera . The included batteries ( Alkaline ) didn't last very long , nor did I expect them to . I thought I would be okay with 2300 mAh rechargables . These didn't last more than two hours of casual camera use . I was very discouraged because I liked the camera but had no confidence in it's ability to give me a reasonable battery life . Then came the Eneloops . Lot's of research caused me to purchase these batteries . I put two of them in the camera right out of the package . They're still going strong some 200 shots later and show no signs of decreased charge . They have given me the ability to use this camera as I had first intended . I have since purchased four more and the charger that goes with them . These Eneloops have a remarkable useful life and just don't want to quit the way others do . They are , by far , my AA battery of choice . They will replace the other AAs I have as these others fade away . I don't see how you could ask for more .
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
The red , low battery warning light went on ( on the camera LED ) about three days ago . I felt that I got well over 200 shots with these two eneloops and was satisfied . So , just out of curiosity , I thought I would keep going to see how long before the camera shut down . It didn't shut down . The next day the low warning icon was not there and hasn't returned during another 40 - 50 shots . I can't explain this - it's like the batteries had a breather and are off and working again . This tempts me to advise you to just give them a rest and see if you have the same result . Amazing little source of power .
205 4 I purchased a Canon A590IS P & S camera . The included batteries ( Alkaline ) didn't last very long , nor did I expect them to . I thought I would be okay with 2300 mAh rechargables . These didn't last more than two hours of casual camera use . I was very discouraged because I liked the camera but had no confidence in it's ability to give me a reasonable battery life . Then came the Eneloops . Lot's of research caused me to purchase these batteries . I put two of them in the camera right out of the package . They're still going strong some 200 shots later and show no signs of decreased charge . They have given me the ability to use this camera as I had first intended . I have since purchased four more and the charger that goes with them . These Eneloops have a remarkable useful life and just don't want to quit the way others do . They are , by far , my AA battery of choice . They will replace the other AAs I have as these others fade away . I don't see how you could ask for more .
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
The red , low battery warning light went on ( on the camera LED ) about three days ago . I felt that I got well over 200 shots with these two eneloops and was satisfied . So , just out of curiosity , I thought I would keep going to see how long before the camera shut down . It didn't shut down . The next day the low warning icon was not there and hasn't returned during another 40 - 50 shots . I can't explain this - it's like the batteries had a breather and are off and working again . This tempts me to advise you to just give them a rest and see if you have the same result . Amazing little source of power .
207 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I got a new digital SLR , and bought some new AA batteries to go with it ( the fact that it uses regular AA batteries was one of the reasons I got the Pentax 200D ) . Actually , I didn't know this type of low self-discharge NiMh battery existed . I was a bit put off by the fact that they are rated at fewer milliampere hours than others , but the self-discharge thing has been a major annoyance in the past , so I decided to give them a try . I also bought some Imedion AAs from Powerex . When I got them , the Imedions required charging , the Eneloops were full up . I put the Imedions in the charger and the Eneloops in the camera . They lasted for a couple of months of messing around with the new camera , taking a bunch of shots in the process . The camera's battery indicator finally showed them at half full during a night at a folk concert ( the folk don't mind if I shoot pictures of them ) , so I put in the recently charged Imedions . They dropped to half-full in a couple of shots , then to empty ! So . . . I'm getting more Eneloops . Don't know what I'll do with those other inert cylinders .
208 4 I got a new digital SLR , and bought some new AA batteries to go with it ( the fact that it uses regular AA batteries was one of the reasons I got the Pentax 200D ) . Actually , I didn't know this type of low self-discharge NiMh battery existed . I was a bit put off by the fact that they are rated at fewer milliampere hours than others , but the self-discharge thing has been a major annoyance in the past , so I decided to give them a try . I also bought some Imedion AAs from Powerex . When I got them , the Imedions required charging , the Eneloops were full up . I put the Imedions in the charger and the Eneloops in the camera . They lasted for a couple of months of messing around with the new camera , taking a bunch of shots in the process . The camera's battery indicator finally showed them at half full during a night at a folk concert ( the folk don't mind if I shoot pictures of them ) , so I put in the recently charged Imedions . They dropped to half-full in a couple of shots , then to empty ! So . . . I'm getting more Eneloops . Don't know what I'll do with those other inert cylinders .
210 4 Despite having a lower amp-hour rating than some other High Capacity NiMh batteries , these batteries are the answer for use in digital cameras and electronic equipment because they simply last longer before dying and give you more shots per charge .
Everytime I went to use my digital point ' n shoot camera after a week or so of not being used , the normal NiMh batteries - and the spare set of normal AA size NiMh batteries were always dead as a doornail .
These Sanyos retain almost full charge for a year . Several months ago I put them into my Canon A650IS . These same batteries are still in and working . The previous set of high capacity batteries I bought that have a higher amp-hour rating were always dead after about 2 weeks without use . The Sanyos makes it seem as if you have a lithium power supply .
They are worth every penny of the extra cost !
211 4 This review is from :
Sanyo Eneloop 4 Pack AA NiMH Pre-Charged Rechargable Batteries w / Charger ( Electronics )
These are terrific batteries and the ' smart ' charger is very good as well . They hold their charge far , far longer than my old set of NM。's . I use them in my Canon Powershot A560 camera and they don't seem to ever quit , even with high usage of the flash . I recharge them after heavy usage because its impossible to know how much charge they have left in them . If they were less expensive I would use them in other less demanding applications such as in remotes for T。's etc . But that is currently not cost effective since alkaline batteries will last for years in such applixcations and they are much less expensive . Thanks Lee for your extensive reviews of these batteries ; your reviews are what convinced me to buy them .
213 4 So far , I'm happy with the NiMH batteries and charger . I've not yet run my camera long enough on a single pair of NiMH cells to check how long the charge will last , but so far , they've exceeded the Alkaline battery life , and easily exceeded the life of some old NiCd cells I used for some years in an older camera .
214 4 This review is from :
SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries ( Electronics )
I have only had these batteries for a short while ( about 6 months ) but I'm really impressed with them . They last much longer than previous rechargable batteries that I have experience with . And I wasn't dissatisfied with the other batteries . The Eneloop batteries just last even longer .
I haven't had them long enough to speak to their durability but I expect that to be excellent as well .
215 4 I have only had these batteries for a short while ( about 6 months ) but I'm really impressed with them . They last much longer than previous rechargable batteries that I have experience with . And I wasn't dissatisfied with the other batteries . The Eneloop batteries just last even longer .
I haven't had them long enough to speak to their durability but I expect that to be excellent as well .
