HTC DESIRE 526 User Manual page 177

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
Manage your connections
Turn off wireless connections such as mobile data, Wi-Fi, or Bluetooth when
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not in use.
Turn GPS on only when a precise location is needed, such as while using
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navigation or location-based apps. See
page 264.
If the Sleep mode option in Settings > Power is enabled, at low peak times,
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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.
Turn on Airplane mode when you don't need any wireless connections and you
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don't want to receive calls or messages.
Manage your display
Lowering the brightness, letting the display sleep when not in use, and keeping it
simple helps save battery power.
Use automatic brightness (the default), or manually lower the brightness.
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Set the screen timeout to a shorter time.
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Power and storage management
Checking battery usage
Turning location services on or off
177
on page 175.
on