Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries (4 Pack)
by SANYO
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Digital Cameras Photo Reviews of Sanyo Eneloop AAA NiMH Pre-Charged Rechargeable Batteries (4 Pack)
Customer Review: Best In Class
Summary: 5 Stars
These were the first "low discharge" (i.e. long shelf life) rechargeable batteries on the market and they're still among the best. My tests, and those of others, confirm they hold a charge longer than competitive batteries, and typically exceed their rated capacity. The only batteries I've found that come close are EnergyON but they're about the same price and I prefer the Sanyo version.
In devices the use very little power, like remote controls, typical rechargeable batteries die of their own self discharge long before they otherwise would. Many NiMh and NiCad batteries lose as much as 15% per month. So even fully charged, they're dead (or nearly dead) in 6 months just sitting in a drawer.
These Eneloop batteries, however, only lose a few percent a month. So they can last a year or longer in something like a remote control before you need to charge them.
If you have a high-drain device like a camera flash or flashlight, that you use often (several times a month) these batteries will offer little benefit over regular NiMh cells. But for devices that you don't use often, or use very little power (like a clock or remote control), they're BY FAR the best choice.
Customer Review: Isn't Technology Great?
Summary: 4 Stars
The promise of rechargeable batteries has always been tempting. But the reality was always a disappointment. Due to the rapid discharge when not in use, the types of devices they could be used with were very limited. But now that's all changed. Now you can use them in things like remote controls and wireless mice and all the other things around the house that eat batteries.
The Sanyo Eneloops have been great for me. I have both the AA and the AAA in use around the house. I keep a set of each always charged and ready to use when any of my devices runs out. They charge fast enough that I can turn that around quickly enough to be ready for the next device. As long as I don't have 2 things die within hours of each other I'm fine.
The only caveat I'd mention is that when these things die, they seem to really die fast. They will go from working fine to not working at all very fast. There isn't a lot of warning that they are going to stop working. Your mouse or remote will just stop working. Regular Alkaline batteries appear to have a less steep drop off in power. So make sure you bring an extra set with you if you are going on the road with your device.
Customer Review: The best rechargeable batteries
Summary: 5 Stars
I love Nickel Metal Hydride batteries. I got gadgets and toys all around the house, so I constantly charging batteries to have them ready when I need them. But as you know, they are unuseable after you put them in the shelf for a month. Which is a waste of time and energy. If you really want to be green, then you need these low-discharge batteries. I have started to replace all of them with Eneloops.
Pros:
-Low discharge.
-Well constructed
-Conventional size and dimension.
-Looks sexy and sleek
Cons:
-More expensive than ordinary NiMh
-Not available at many stores
Now there are bunch of low-discharge batteries coming out. Kodak, Rayovac, I also see some at Thomas Distributing, some are cheaper than Eneloops. I do not want to mix them up, plus have not tried the others. So, I stick with this brand at this time.
It is kinda strange though that the Eneloop kit (I purchased from Costco for 26$ - 1 battery charger, 8 AA's, 4 AAA's plus a pair each of D & C size adapters) is not available in Amazon Prime but the others are.
I find those adapters (spacers) very useful.
[...]
Customer Review: Vastly better than the Sony rechargeables they replaced!
Summary: 5 Stars
I've been using rechargeable batteries for most of my battery needs (primarily remote controls) for five years now. Previously I was using the Sony units, which worked all right, but seemed to go from "fully charged" to "too weak to actually register a button-press" in just a few weeks. I'd really rather recharge my remote control batteries every...oh...month or two if possible, but that just wouldn't work with the older technology.
Eneloops are different. While they may not have as much peak capacity (so might not be great for digital cameras, for example), they HOLD THEIR CHARGE for a long time, and are MUCH better for remote controls and other items that use little power over a long time. I have actually been testing the Eneloops against my previous Sony batteries (still using the old Sony charger, which is a nice unit) and can always tell when a remote isn't using Eneloops -- it craps out much faster, and when it craps out, it's dramatic versus the slow fade of the Eneloop.
So anyway -- if you're using these for remote controls, DEFINITELY get them. They are very much worth it.
Customer Review: Not your normal, crummy NiMH battery
Summary: 5 Stars
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 NiMH's disipate. Once again, I have to recharge. Not so with eneloops. For me these batteries are the greatest.
2700 mAH's (or more in the future) of energy storage capacity for the highest regular NiMH's does not trump eneloops 2100 mAH for me if most of the 2700 mAH'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!