Understanding the phone power usage is important to understand what is causing the power to drain. 
	 
 
  
- 
Check the battery usage information to see which apps and system services are using power. This information shows the estimated percentage of the battery power the app or service has used. 
		  
- 
 Updating apps and system software can help improve battery life by making sure the latest performance updates are installed. Update all installed apps in 
			 Google Play Store 
			  and check for the latest updates on your phone. 
		  
- 
 If the issue started recently, uninstalling apps that have been installed since shortly before the start of the issue may help. Some apps are not as well optimized as others, and may affect the battery life. 
		  
- 
From the 
				Home screen, tap 
				. 
			 
- 
Do one of the following: 
				
- If you see 
						Recently opened apps onscreen, tap 
						See all __ apps. 
					 
- Tap 
						App info. 
					 
 
- 
Tap the app that was installed shortly before the battery drain issues began, and then tap 
				  Uninstall.