It's great to be able to recharge both AA and AAA batteries; particularly if you've got a power pack/solar panel unit, making them a truly sustainable unit. NOTE: Not recommended for essential electronics or flashlights. You need to recharge too frequently.
Energizer Rechargeable AA and AAA Battery Charger
Bottom line: Batteries that you can... recharge.
Recommended for: Home/away shelters.
No. of units recommended: 1 ore even 2 recharge units, and lots of actual rechargeable batteries! 4 AA "pre-charged" batteries like these.
Be aware: Pre-charged, or hybrid batteries, are the best buy. A standard rechargeable battery will lose 1 percent of a charge per day, and be fully empty in a possible two months. A pre-charged NiMH will lose 25 percent or less of its full charge in six months. Still, it is best to recharge them at least once every six months.
OFTEN BOUGHT WITH
Energizer Rechargeable AA Batteries, NiMH, 2000 mAh, Pre-Charged, 8 count (Recharge Universal).