Which end of the cable do I plug into the charger? October 03, 2018 10:10 Updated Follow The USB tip goes into the charger slot, and the micro USB tip goes into your device. Related articles How long is the cable? Is there a USB cable included? Can this charger be used on a 220volt outlet? Can I use this same data/charge cable for transferring photos and other data from my Motorola phone to a computer?