Anyone looking for a dual purpose USB backup battery that also functions as a powerful tactical flashlight might be interested in the new Zerohour Relic XR that has been designed by Amy Truong and ...

We may receive a commission on purchases made from links. Most households have several devices that run on AA or AAA batteries. This includes everything from TV remotes and alarm clocks to flashlights ...

Purchasing a battery system is often one of the most expensive aspects of starting a cordless power tool collection. Rechargeable pack batteries have come a long way in terms of power and efficiency, ...

Arguably the most useful part of USB’s power capabilities is the ability to charge batteries in portable devices, but there is more to battery charging than picking a power source, USB or otherwise.

From YubiKeys to cordless vacuums, we tested 5 of the most useful USB gadgets on Amazon under $40. Upgrade your security, ...

Editor’s note: This article is part of our roundup of USB-C battery packs. The simplest way to discuss electrical power is in units of volts (V), current measured in amperes or amps (A), and watts (W) ...