Duracell AAA 750mAH 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 750mAH AAA NiMH batteries are ideally suited for high-drain or frequently used devices such as pc mice, remote controls etc. Recharge hundreds of times and save hundreds of pounds. Duracell’s DURALOCK technology means these batteries are guaranteed to stay powered for up to 5 years* when not being used. This huge leap forward in battery technology has been made possible by improvements in the purity of ingredients and upgrades to the construction of the battery cell meaning less power is lost when in storage.