Basics122 Plug the USB power adaptor into an electric socket.3 After fully charging, disconnect the device from the charger. First unplug the chargerfrom the device, and then unplug it from 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.Viewing the remaining charging timeWhile charging, open the Home screen and tap Apps → Settings → Battery.The actual charging time may vary depending on the status of your device and thecharging conditions. The remaining charging time may not be displayed when youcharge the device in very cold or very hot conditions.Reducing the battery consumptionYour device provides various options that help you conserve battery power.• Optimise the device using the Smart manager.• When you are not using the device, switch to sleep mode 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, such as emails.• Decrease the backlight time.• Decrease the screen brightness.