View Full Version : What are the highest capacity rechargeable AA batteries on the market?
11-18-2008, 08:36 AM
I just ordered some Accupower 2900 mAh NiMH AA batteries. They were the highest I could find. Is there anything better out there?
e: And just out of curiosity, how high do non-rechargeable AAs go?
11-18-2008, 08:40 AM
First, this is not a simple question.
What is important is your particular application. If your battery-powered device is going to have long periods of OFF time, you are probably going to be better off using a battery with less capacity and lower self-discharge, like the Sanyo Eneloops. I've seen NiMH batteries rated as high as 3200 mAH, but I suspect that they are just fakes. I find my best performing batteries to be the 2500 mAH Eneloops.
11-18-2008, 08:56 AM
AFAIK, Eneloops only come in 2000 mAh for the AA size.
But I will second their recommendation. They're great batteries, and they keep a charge for a long time in storage. I used to be so frustrated with grabbing my second camera once a month or so only to find that the batteries were dead. ("I swear...they were charged last I checked.") The low self-discharge is a terrific feature.
11-18-2008, 09:07 AM
FWIW, I'm using them in my wireless Xbox 360 controllers, which do get used pretty much every day (if not always by me, then by my roommate), often for several hours a day, so that's why the higher capacity was important in my decision.
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