To recharge this battery, please use the micro-USB port(s). You will need at least one micro-USB cable and a wall charger to recharge PowerCore.

We have included two cables in this battery pack to recharge the battery. They are the USB-A to micro-USB cables. 

If you use one USB-A to micro-USB cable to recharge the battery, you will need a wall charger with a USB-A port, such as a 5V/2A wall charger (an iPad or Samsung Galaxy adapter). The time to recharge when using a 5V/2A wall charger and USB-A to micro-USB cable is 13-15 hours.

If you use two USB-A to micro-USB cables to recharge the battery simultaneously, you will need a wall charger with two USB-A ports or two wall chargers with a USB-A port. The time to recharge when using two 5V/2A wall chargers and two USB-A to micro-USB cables is 6.5 hours.

If you still have problems with how to recharge the Anker 337 Power Bank (PowerCore 26K), please contact us for further assistance.