It's Your Nickel.

So you like Nickel-Metal Hydride rechargeable battery bargains? You choose a 4-pack of "AA" 2600mAh or "AAA" 1000mAh NiMH batteries, the recommended choice for electronics like cameras, games, cordless phones, remotes, wireless mice and keyboards, toys and more. The best part is these come pre-charged and have a better energy retention than standard Ni-MH batteries, dropping to only approx 80% after a year of storage. Plus they recharge up to 1,200 times!