9English2. Initial Operation2.1 Managing and Charging the BatteryBefore using the tablet PC for the first time, fully charge the battery. This tablet PC has a built-inpolymer battery; use only the dedicated charger to charge the device.In order to prolong the service life of the device, use the device until the battery is depleted beforecharging the battery the first two times.To charge the battery, connect the charger / adapter to the device and the Micro USB Port.NOTE:• For the first two times of charging the battery, the charging time may take up to 10 hours; succeeding times maytake up to 5 hours.• During charging, the battery icon on the screen will scroll.• When charging is complete, the battery icon will turn blue and stop scrolling.• When you plug in the charger after the device shuts down due to low power, it may take a while before thesystem enters the Home screen.When the device is not in use, be sure to turn off the device.If the device will not be used for a long time, be sure to discharge and then charge the battery oncea month.The built-in polymer battery must be recharged regularly. Battery damage caused by depletion or bythe use of an unauthorized charger are not covered by the warranty.