How to check the battery health
1. Touch Settings.
2. Scroll to and touch Battery.
3. Battery information for the last 24 hours and up to 10 days is displayed.
4. Scroll down to display the BATTERY USAGE BY APP.
5. This displays the amount of battery each app is using.
6. How long the screen has been unlocked and active, and how long the screen has been idle for will be displayed.