See how the system and apps are using the battery and how much power is being used. 
		 
	 
- 
On the 
				Home screen, tap 
				Settings. 
			 
- 
Tap 
			 Battery. 
		  
You'll see how much power is left and about how long it will last. 
			  
- 
Tap 
			 . 
		  
- 
Tap  . Tap 
			 Show full device usage or 
			 Show app usage to toggle between displaying system and app battery consumption. . Tap 
			 Show full device usage or 
			 Show app usage to toggle between displaying system and app battery consumption.
- 
Tap an item to check how it uses the battery. 
		  
- 
If you see the 
			 Manage battery usage section while viewing battery use details, tap the option underneath it to adjust settings that affect battery usage. 
		  
Another way to check the battery usage per app is to go to 
		Settings, and then tap 
		. Tap the app you want to check, and then tap 
		.