On the following screen, tap a process to see its usage details.
Note: This list displays major processes that consume over 1% of your battery power. Some processes, i.e. Screen or Wi-Fi, can be adjusted to save power. However, most items shown are necessary system process and cannot be adjusted.
To find out how much battery power each app uses:
Launch Settings then tap Battery
Tap > Apps power usage details
Tap an app to see its usage details.
Note: If you find that an app is causing too much battery consumption, use Auto-Start Manager app to prevent it from automatically starting and using up memory and power.