Basics183 Plug the USB power adapter into an electric socket.4 After fully charging, disconnect the charger from the device. Then, unplug the chargerfrom the electric socket.Reducing the battery consumptionYour device provides various options that help you conserve battery power.• Optimize the device using the device care feature.• When you are not using the device, turn off the screen by pressing the Power key.• Activate power saving mode.• Close unnecessary apps.• Deactivate the Bluetooth feature when not in use.• Deactivate auto-syncing of apps that need to be synced.• Decrease the backlight time.• Decrease the screen brightness.Battery charging tips and precautions• When the battery power is low, the battery icon appears empty.• If the battery is completely discharged, the device cannot be turned on immediatelywhen the charger is connected. Allow a depleted battery to charge for a few minutesbefore turning on the device.• If you use multiple apps at once, network apps, or apps that need a connection toanother device, the battery will drain quickly. To avoid losing power during a datatransfer, always use these apps after fully charging the battery.• Using a power source other than the charger, such as a computer, may result in a slowercharging speed due to a lower electric current.• The device can be used while it is charging, but it may take longer to fully charge thebattery.• If the device receives an unstable power supply while charging, the touchscreen may notfunction. If this happens, unplug the charger from the device.