Settings186BatteryView the amount of battery power consumed by your device.On the Settings screen, tap Battery.• Display battery percentage: Set the device to display the remaining battery life.Power savingActivate power-saving mode and change the settings for power-saving mode. Refer to Powersaving feature for more information.On the Settings screen, tap Power saving.• Power saving mode: Activate power-saving mode and change the settings for power-saving mode.– Restrict background data: Set the device to prevent apps that are running in thebackground from using a mobile data connection.– Restrict performance: Set the device to limit various options, such as turning off theRecent apps button and the Back button’s backlight.– Greyscale mode: Set the device to display colours on the screen as grey tones.• Ultra power saving mode: Extend standby time and reduce battery consumption bydisplaying a simpler layout and allowing limited access to an app.The estimated maximum standby time shows the time remaining before the batterypower runs out if the device is not used. Standby time may vary depending on yourdevice settings and operating conditions.