HTC One M9 - Manual (Page 123)

Power and storage
management
Battery
Displaying the battery percentage
You can check the percentage of remaining battery power right from the status bar.
1. From the Home screen, tap > Settings > Battery Manager.
2. Select Show battery level.
Checking battery usage
See a ranking list of apps that are using the battery. You can also see how much and how long the
battery has been used for each app.
1. From the Home screen, tap > Settings > Battery Manager.
2. Tap Battery usage, and then tap an app to check how it's using the battery. You'll see how
much battery power is used by resources such as the CPU for the app and other use details.
If you see buttons while viewing an app's battery use details, you can tap them to adjust settings
that affect battery usage, stop the app, and more.
Checking battery history
Check how long you've been using HTC One M9 since the last charge. You can also see a chart that
shows how long the screen has been on, and how long you've been using connections like the mobile
network or Wi-Fi.
1. From the Home screen, tap > Settings > Battery Manager.
2. Tap History.
3. If you've used HTC One M9 for a long time since the last charge, swipe left or right to scale
the graph that details battery usage over time.
You can also slide two fingers together or apart to scale the graph.
123 Power and storage management