User Guide

Optimizing battery life with power saver mode
Turning power saver mode on helps to increase battery life. It reduces the usage of
phone features that drain the battery such as the CPU and display.
1. Slide the Notifications panel open.
If you want to choose which phone features to conserve power for, tap the
Power saver notification first before you turn power saver mode on.
If Data connection is selected, HTC One automatically disconnects from the mobile
network after 15 minutes when the screen is off and the data connection is idle (no
download activity, streaming, or data usage). It reconnects and then disconnects
periodically when the data connection is idle to save battery power.
2. Tap the check box next to the Power saver notification to turn power saver
mode on or off.
Getting the battery to last longer
How long the battery can last before it needs recharging depends on how you use
HTC One. HTC One power management helps to increase battery life.
In times when you need to extend the battery life more, try out some of these tips:
Check your battery usage
Monitoring your battery usage helps you identify what's using the most power so you
can choose what to do about it. For details, see Checking battery usage on page 38.
Manage your connections
§ Turn off wireless connections you're not using.
To turn on or off connections such as mobile data, Wi‑Fi, or Bluetooth, go to
Settings and tap their On/Off switches.
§ Turn GPS on only when a precise location is needed.
To prevent some apps from using GPS in the background, keep the GPS
satellites setting off. Turn it on only when you need your precise location while
using navigation or location-based apps. Go to Settings and tap Location to
turn this setting on or off. For more information on location services, see
Turning location services on or off on page 133.
§ If the Sleep mode option in Settings > Power is enabled, at low peak times, your
phone will turn off the data connection after the screen has been off for 15
minutes and there's no network activity (no downloads, streaming, or data
usage). The data connection resumes when you switch the screen back on.
Manage your display
Lowering the brightness, letting the display sleep when not in use, and keeping it
simple helps save battery power.
39 Your first week with your new phone