Apps and processes are listed from highest to lowest percentage of power consumption. Review any high or unusual battery drain.
From a Home screen, swipe up to display all apps.
Navigate: Settings > Battery.
Review the current battery status.
Percentage indicates the remaining battery life, charging status.
'Charging' only displays if device is connected to a charger and the time to full charge is being calculated. After a few minutes, the time to full charge displays.
From the Battery screen, tap USAGE DETAILS.
View the 'Advanced battery usage' details.
The Battery history graph displays the time since it was last charged to 100%.