What should I do if the USB ports won't power my device?

First, make sure the USB Power Button is in the on position and the USB Power/Fault Indicators light solid blue. Ensure the total current draw of all USB devices does not exceed 3.1A. Check that the unit has a full charge and recharge if necessary. Some USB-powered electronics may not be compatible with this unit, so check your device's manual. (Page 10)