<b>TO CHARGE YOUR ELECTRONIC DEVICE</b><br> <b>Option 1</b><br> Your electronic device will be charged by power bank automatically once connected with the built-in cable. If not, please press the power button to turn on the power bank<br> <b>Option 2</b><br> Connect the USB port to your electronic device with charging cable that comes with your electronic device, then power bank will start charging, if not, please press the power button to turn on the power bank<br> <b>TO CHARGE POWER BANK</b><br> <b>Option 1</b><br> <b>Using the built-in AC plug</b><br> Put the built-in AC plug of the power bank into the AC outlet. The LED lights will illuminate and indicate battery level in the power bank. When all 4 LED lights are on and solid/none are flashing, the power bank is fully charged.(It will take about 8 hours to fully charged the power bank from AC outlet)<br> <b>Option 2</b><br> <b>Using Micro USB charging cable(Not included)</b><br> Connect power bank to a USB AC adaptor or the USB port of a computer with a micro USB charging cable(Not included).The LED lights will illuminate and indicate what battery level is in the power bank. When all the LED lights are on and solid/none are flashing,the power bank is fully charged.<br> <b>CHECK THE BATTERY POWER LEVEL</b><br> Make a quick press and release on the power button, the LED indicators will light up for a few seconds then turn off automatically, each LED light represents approx twenty-five percent power of a full battery.<br> <b>NOTE</b><br> If you find it can not charge your phone, please press the button<br>