Power saver mode helps to increase battery life. 
	 
 It reduces the usage of phone features that drain the battery such as location services and mobile data. 
  
 
	 -  
		  From the 
				Home screen, tap 
				 , and then find and tap 
				Settings. , and then find and tap 
				Settings.
- Tap Power.
-  
		   Tap the Power saver 
			 On/Off switch to turn power saver mode on or off. 
		   
		   
			  To set when to automatically switch this mode on, tap 
				, and then select a battery level.