Basics133 Plug the USB power adaptor 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.• Optimise the device using the device maintenance 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 the Wi-Fi feature when not in use.• Deactivate auto-syncing of apps that need to be synced.• Decrease the backlight time.• Decrease the screen brightness.