We thought so. Listen up: We tested 15 AA batteries—the type typically used in digital cameras, flashlights, toys, radios, and remote controls—and found differences in performance and cost.

In our lab tests, AA batteries models like the Ultimate Lithium AA are rated on multiple criteria, such as those listed below. Flashlight: This is based on the total hours of flashlight life a ...

Just know the next time you're on a family camping trip and your AA battery flashlight dies, you can borrow a AAA battery ...

[Ray’s] breadboard power supply lets you drain the last traces of power from ‘dead’ AA batteries. Electronics that are powered off of disposable alkaline batteries have a cutoff voltage that ...

The product replaces the standard CR2032 coin cell battery in the Bluetooth-based location tracker with two AA batteries to provide extended power capacity. The TimeCapsule case requires users to ...