Duracell AAA 750m AH rechargeable batteries. Not only will you get hundreds of uses out of each Rechargeable battery, but they stay charged longer so you can recharge less*. These high power 750m AH AAA Ni MH batteries are ideally suited for high-drain or frequently used devices such as pc mice, remote controls etc. Recharge hundreds of times & save hundreds of pounds. Hold their charge for 6 months*. Last upto 35 Hours in a PC Mouse. Re-charge 100's of times.