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 ...

Electronic toys of yesteryear were fantastic objects of desire, but came with the fatal flaw of requiring batteries ... that take four AA cells. Most of us probably keep a few packs of AAs ...