QI-certified 10W wireless charging and 18W USB-C rapid charging are features of the Anker PowerCore III 10K wireless portable charger. Anker's Advantage Become one of the 55 million people who rely on our cutting-edge technology. Wireless charging that is portable: With Qi certification, it can wirelessly charge phones, earbuds, and other portable electronics up to 10W. Enhanced USB Charging Speed: To provide your phone or tablet with a robust 18W charge, connect it to either the USB-C or USB-A port. Desktop Mode: Connect the PowerCore to a power source using the USB-C port to use it as a wireless pad. While fully recharging PowerCore's internal battery, wirelessly charge your device.