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.

Ulefone, makers of rugged smartphones, has unveiled the Armor 30 Pro. Designed to be a go-anywhere tough phone that can ...

[Facelesstech] owns an SJCAM SJ4000 action camera, but the internal battery was no longer functional. Not wishing to buy a replacement and unwilling to hook up an ungainly USB cable to feed power ...