Use Power Saver Mode - HTC ONE A9 User Manual

4. Tap Not optimized > All apps to see the complete list of apps.
5. To turn off battery optimization in an app, tap the app name, and then tap Don't optimize >
Done.
6. Repeat this process to turn off optimization in other apps.
Note: To filter the list and see which apps have battery optimization disabled, tap Battery optimization >
Not optimized.

Use Power Saver Mode

Power saver mode helps to increase battery life. It reduces the usage of phone features that drain the
battery such as the display and data connection.
1. Tap > >
2. Tap Power.
3. Tap the Power saver On/Off switch to turn Power saver mode on or off.
Tip: To set when to automatically switch this mode on, tap Power saver > Turn on automatically, and
then select a battery level.
Use Extreme Power Saving Mode
In times when you don't need to use much of your phone, turn Extreme power saving mode on to extend
battery life longer. In this mode, standby time can last longer than usual, and you can only use the most
basic functions such as phone calls, text messaging, and email.
1. Tap > >
2. Tap Power.
3. Tap the Extreme power saving mode On/Off switch to turn Extreme power saver mode on or
off.
Tip: If you want to set when to automatically switch this mode on, tap Extreme power saving mode and
select a battery level.
Check 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. Tap > >
2. Tap Power > Battery usage, and then tap an app to check how it's using the battery.
3. If you see the Adjust power use section while viewing battery use details, you can tap the option
underneath it to adjust settings that affect battery usage.
Device Settings
Settings.
Settings.
Settings.
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