Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 4 Pack
by SANYO
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Digital Cameras Photo Reviews of Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 4 Pack
Customer Review: Dependable batteries
Summary: 5 Stars
Hi... I researched a lot before buying a rechargeable battery especially when my energizer get 'de-energized' barely a month while lying in my drawer without being used! I found out that Sanyo was currently the best, so I ordered the 2700mAh high capacity and 2000mAh precharged (eneloop, white label), low discharge batteries. Here is what I observed after charging the batteries and observing them with a digital multimeter, after 2-3 weeks while stored in my shelf without being used:
2700mAh battery had 1.31V and about 2100mAh capacity.
The 2000mAh batteries had about 1.39V and about 1900mAH current.
My verdict: the 2700mAh is really not the 2700 capacity, but slightly better than slow discharge PROVIDED you want to charge and use the battery immediately. In my case, I use batteries occasionally and so the low discharge eneloop ones are better since there is always some charge left whenever i want to use the batteries, enough to allow me to click several pictures with my digital camera. Moreover, I hate to see batteries in low charge state whenever I want to use them, so for me the pre-charged eneloop ones work best as then can retain charge for several months. In my opinion, due to practical situations, the precharged, low discharge eneloop are better, but in case you would like to have a little more juice in batteries and want to use it for immediate use, go for the 2700mAh.
Customer Review: New & Improved Rechargeable Batteries
Summary: 5 Stars
I was skeptical about going back to any rechargeable batteries. Just when I was getting used to dealing with old fashion NiCad batteries dieing so quickly and without notice, and having to revert to the more dependable alkaline batteries, the Eneloop batteries were developed.
The Eneloop batteries last as long as alkaline before they have to be recharged, so there's no problem with them. While I'm using a set of Eneloops, I just keep a spare set ready for when they finally do die, which takes a much longer time than I ever expected.
For example, I use the Eneloops in a Sony CD/radio Walkman while outdoors and indoors. When I'm indoors, I don't even bother plugging in the AC power adaptor to conserve battery power. There's plenty of power to spare which lasts several hours per day for an entire week at minimum. It's a pleasure and a convenience to use the Walkman while wireless, as it was intended to be used. I'll just save the AC adaptor for when they finally do need a charge.
Eneloops 'keep going and going' better than the Enegizer bunny. Okay, well someone had to say it, and it's true! I believe that Eneloops are even better than Energizer and most other brands of NiMH batteries.
It's a pleasure to find a product that really works very well. I think the $9 with free shipping that I paid for these 4 rechargeable AAs is a good deal.
Customer Review: The only NiMH batteries worth buying
Summary: 5 Stars
These low-self-discharge batteries are game-changers... really that sounds like an exaggeration, but these batteries are really the first to live up to what people's expectations of rechargeable batteries is (and should be).
With most NiMH batteries (ESPECIALLY the very high-capacity ones like 2400mAh and 2700mAh), internal discharge rate is unreasonably high. What this means in practice is that if you have a regular 2400mAh NiMH battery and an Eneloop 2000 mAh battery, charge them both to capacity, then use them a month later, the Sanyo will have much more capacity left to give you.
With regular NiMH batteries, you really have to charge them up just before the week/weekend you want to use them, and then consider them useless until they are charged again. If you want them 'on tap' available at all times, then you need to buy enough smart chargers to keep them all on the charger all the time... which would cost a fortune.
The Eneloops can effectively be charged, put in your equipment, and practically forgotten about just like Alkalines. But if you do use them up, you don't have to throw them away, you can just recharge them and put them in the pile of fresh batteries again without really thinking too much about it... finally delivering the promise that most people expect out of rechargeable batteries.
Customer Review: Works well in external camera flash
Summary: 5 Stars
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.
Customer Review: Very Pleased!
Summary: 5 Stars
There are several very scientific reviews about these NIMH rechargeable batteries, so I will just add my experience with them. I have several items that take [AA-AAA] batteries that I use on a pretty regular basis- I have always been a supporter of the concept of rechargeable batteries, but in the past they have always been terrible. I believe past types used Ni-Cad storage cells, and as anyone who has used these kinds of batteries over the years knows, they do not last long, they take a long time to charge, and they die completely far too soon.
All of these issues are gone with this type (NIMH) of battery- they last a long, long time, they hold their charge for a year or so, and they can be partially recharged without causing issues. Honestly, I see no reason not to use these. They will save you a great deal of money, and are also much better for the environment, since one of these is like buying 800+ alkaline batteries! In the devices I have used these in (xbox controllers, keyboard, mouse and other small electronics) I see them to be just as effective and long lasting as alkaline batteries, and I don't see myself using non-rechargeable batteries ever again. A must buy, for yourself, and for the sake of reducing waste too!