The first USB power specification. Introduced in 2007, USB Battery Charging was fixed at 7.5 watts, 5 volts and 1.5 amps. When Version 1.2 was introduced in 2010, the following terms were coined ...

give a rough estimate of how much battery life is left. With a USB-C PD port, a DC port, two USB-A ports, and a wireless charging pad, this power bank has oodles of charging options. It doesn’t ...