Getting started62 After fully charging, unplug the USB cable from the battery pack, and then disconnect itfrom the electric socket.To save energy, unplug the charger when not in use. The charger does not have apower switch, so you must unplug the charger from the electric socket when not inuse to avoid wasting power. The charger should remain close to the electric socketand easily accessible while charging.Checking the remaining battery powerCheck the remaining battery power by pressing the Battery Level button.The indicator lights alerts you to the remaining battery power.Remaining batterypower Indicator light status75–100% Four indicator lights on50–75% Three indicator lights on25–50% Two indicator lights on5–25% One indicator light on0–5% One indicator light blinkingEnglish (USA)4