The core issue lies in how alkaline and lithium batteries discharge their voltage over time. Both types deliver the necessary voltage range for AA-compatible devices, typically between 1.2V and 1 ...

The Energizer Ultimate Lithium AA is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like the Ultimate Lithium AA are rated on multiple criteria ...

Is anyone giving or receiving a holiday gift labeled "batteries not included"? We thought so. Listen up: We tested 15 AA batteries—the type typically used in digital cameras, flashlights ...

Panasonic Eneloop is a very well regarded brand and model. The smaller battery packs boast well over 40,000 reviews rating ...

Put a set of our Best Buy AA disposable batteries in your most power-hungry devices and they'll last more than three hours longer than the worst. For AAA batteries, our Best Buys last an hour and a ...