... USB cable, plug in one end to the Power Bank input and the other end to the computer.2 ... take note:For the first time charge the power bank to the fullest,let it charge for another 20 ... or one led light flashing on the power bank,this indicates the power bank is weak and need to charged immediately. ... light is “ON”for more then 10mins,the power bank will get heated up externally,however ,this won’ ...