If it seems you're always looking for a charger, there are steps you can take to reduce the power consumption of your phone.

Activate power saving mode

Press the power key , and select Activate power saving. To deactivate power saving mode, press the power key , and select Deactivate power saving.

Close the applications you are not using

Press and hold the menu key, swipe until the desired application is displayed, and select Close icon.

Sounds, themes, and effects
Set the length of the time-out period

Select Settings and Phone > Display > Light time-out.

Activate a dark theme and wallpaper

Select Settings and Themes > General.

To change the wallpaper, on the home screen, select Options icon > Change wallpaper.

Deactivate background animation effects

Select Settings and Themes > General > Options icon > Theme effects > Off.

Decrease the brightness of the display

Select Settings and Phone > Display > Brightness.

Deactivate the Big clock screen saver

Select Settings and Themes > Screen saver > None.

Network use
Deactivate Bluetooth when not needed

Swipe down from the notification area, and select Bluetooth activated icon .

Stop your phone scanning for available WLANs

Swipe down from the notification area, and select WLAN activated icon.

Establish a mobile data (3G or GPRS) connection only when needed

To close the mobile data connection, swipe down from the notification area, and select Mobile data activated icon.