1. To turn on Power Manager, swipe down on Notification panel with two fingers.
   
2. Tap the Settings icon.
   
3. Tap Power manager.
   
4. Toggle on Power saver mode.
   
5. Tap Usage to see a list of the apps and features currently consuming battery power.
   
6. Turn on Auto-Brightness.
   Note: To access, swipe down on the Notification panel with two fingers > Tap the Auto brightness checkbox.
   
7. Set the screen timeout to a shorter duration.
   Note: To access, tap Apps > Settings > Display > Sleep.
   
8. Turn off Bluetooth and Wi-Fi when not in use.
   Note: To access, drag down from the Notification panel > Bluetooth and Wi-Fi.
   
9. Avoid using Live Wallpapers.
   Note: To access, tap Apps > Settings > Display > Wallpaper > Choose Gallery, Photos, or Wallpaper.
   
10. Turn off GPS (Location services) when not in use.
    Note: To access, drag down from the Notification panel with 2 fingers > Location.
    
11. Turn off auto-update of apps.
    Note: To access, tap PlayStore > Menu icon > Settings > Auto-update apps > Do not auto-update apps.
    
12. If you are travelling and do not have access to mobile or Wi-Fi networks, switch to Airplane mode.
    Note: To access, press and hold the Power key > Airplane mode.