How to use? Power Indicator LED display: IN 1.5A On Blinking Off Charging the Power Bank Plug in the Power Bank to a wall charger or your computer's USB port via a USB charging cable. Fully charged Charging Charging other devices Plug in the USB charging cable to the 1.5A port to charge your device. Sufficient battery Low battery Checking the Battery status Press the Power button to check the current battery level. We recommend to charge it when the indicator LED is blinking.