Is anyone giving or receiving a holiday gift labeled "batteries not included"? We thought so. Listen up: We tested 15 AA batteries ... until the batteries die. Battery life was 7.3 hours for ...

A battery pack is a set of any number of (preferably) identical batteries or individual battery cells. They may be configured in a series, parallel or a mixture of both to deliver the desired ...

Our best overall rechargeable battery ... rechargeable batteries are all available in AA and AAA models. Read on to discover our top-rated options, including affordable bulk packs and convenient ...