... Security FeaturesKensington LockStatus IndicatorOn/Off/SuspendBlue LED On/Off/Flash Battery ChargingCharging On:Blue LED on, Fully Charged: LED Off Low ... Battery (No AC) :3%-6% : battery led off,power led flash,power blue led ... down When shutdown and no AC insert, it can show Battery Remainder Power,the press Wifi RF switch 1%~20% CapLock ...