... will turn on, means it’s charging your device.4. Any device of 5V can be recharged anywhere by ... charged, the LED light will turn green. Disconnect it with the powerbank, keep pressing the button for 3 seconds, ... sure the voltage of your device ranges between 4.5V to 5.5V.4. Don’t drop, knock, disassemble or ... LED will turn off when it is full charged. Solar Battery Charger For Mobile Phone,IPHONE