Top off your phone, tablet, laptop, or any other gadget without dropping everything to sit by an outlet.

We know there are people out there who want to swap a flat or dead battery in their smartphone out for a new, fully charged one. Samsung knows it too, and it’s one of the top features on its new ...

While Lenovo’s Legion Tab sits mostly unchallenged in the small Android tablet space, Redmagic is cooking up a 9-inch tablet with an OLED display that’s already compelling, and a new battery spec ...