How To Use1. Select the appropriate voltage and connector for the electronic device to charge / power supply
2. Press the switch to start charging when your device connected with EPOWER; If you unplug the cable, auto-sleep will start in one minute.
3. Five lights will flash circularly during the charging by EPOWER and all lights will keep bright when your device is full-charged.
4. During the charging for your device, LED lights indicate the balance power of built-in battery of EPOWER. Four lights indicate 80% balance, three lights indicate 60% balance, two lights indicate 40% balance and one light indicates 20% balance. The built-in battery is empty when all LED lights start to flash.