Convenient, rechargeable batteries Can be easily recharged to allow extended use. NiMH batteries provide reliable power for a variety of devices. Duralock Power Preserve and Precharged/Staycharged technologies provide optimal performance. Duracell(R) NiMH AA Rechargeable Batteries, Pack Of 4 is one of many AA Alkaline Batteries available through Office Depot. Made by Duracell.