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Battery Usage Guidelines
environment will compromise the intrinsically safe
nature of the device.
Verifying and Optimizing Battery Usage
You can check the battery usage status and also close
some applications to save battery power. In the home
screen, select Settings > Device > Battery.
The current battery charge status (charging or
discharging) and the charge level details are displayed on
the top of the screen.
The discharge graph on the top of the screen shows the
battery level over time since you last charged the device,
and how long you have been running on battery power.
The list at the bottom of the screen shows the breakdown
of battery usage for individual apps and services. Touch
any listed items for more details for more details. The
details screen for some apps includes buttons that allow
you to adjust settings affecting power usage, or stop the
app completely.
If you stop some system apps or services such
as Google service, your device may not work
correctly.
Tips to extend the battery life
Follow these tips to extend your phone’s battery life.
• If you are not using Wi-Fi, Bluetooth, or GPS, use
the Settings to turn them off. The GPS setting is
located in Settings > Personal > Location.
• Move Maps or Navigation apps to background when
you are not using them. They use GPS (and thus
more power) only when they’re running.
• Set screen brightness to Auto and set a shorter
Sleep timeout (1 minute). The display settings are
located in Settings > Device > Display.
• If you are travelling and do not have access to
mobile or Wi-Fi network, switch to Airplane mode:
Press and hold the power switch until the Phone
options dialog appears. Then touch Airplane Mode.
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