Apps and processes are listed from highest to lowest percentage of power consumption. Review any high or unusual battery drain.
From a Home screen, tap the Arrow upicon to display all apps.
Review the current battery status.
Percentage indicates the remaining battery life, charging status.
"Charging" is only displayed 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 will be displayed.
From Battery, tap the Usage details to view Advanced battery usage status.
View the Advanced battery usage details.
The Battery history graph displays the time since it was last charged to 100%.