Product Manual

Table Of Contents
l Battery optimization. Most apps will have the Optimizing battery use setting enabled by
default. Tap this option to view apps that are not optimized. Select All apps from the dropdown
next to NOT OPTIMIZED to view all apps. Select an app from the list to turn Battery
optimization on or off. Turning off is not recommended, as it may drain the battery more
quickly as the app will no longer be restricted from using background battery.
l Stretch a low battery’s power. To help a dying battery last until you can charge it, first turn on
Battery saver mode. Often, battery saver is all you’ll need for a low battery’s power to last until you
can get to a charger. Stretch your remaining battery power with temporary changes to your
settings/usage.
TIP Turn the features back on when you have charged the battery.
l Avoid high-drain activities; for example, heavy screen use, heavy data processing.
l Turn off the wireless radios when not using them to limit connectivity; for example, turn on
Airplane mode, turn off Bluetooth. See Using wireless networks, page 59.
l Limit location data; for example, turn on GPS battery saving mode, turn off Location services.
l Limit automatic syncing; for example, turn off auto-sync for your Google account, turn off
auto-sync for certain Google apps.
l Unplug USB devices. Many USB devices use power just by being connected. If you use a USB flash
drive, unplug it when you are not using it.
l Turn off EMPOWER modules if you will not be using them for a prolonged period; see Disabling and
enabling modules in the EMPOWER Hub, page 72.
l Decrease the display brightness to the lowest comfortable level. See Display settings:adjusting
the backlight, page 42 for more information.
l Turn off screen rotation. See Display settings:screen auto-rotation, page 42 for more information.
l If you don't work in low light settings, disable the keypad backlight. Go to Settings / System /
Languages & input / Physical keyboard / Built-in Keyboard. Tap the slider next to Enable to
disable the keyboard backlight.
You can also adjust the brightness of the keyboard backlight by moving the Backlight brightness
slider left or right.
l Turn off the handheld when you are not using it. See Turning off the device, page 37.
l Reduce the length of time before the operating system turns off the display. To further save
battery power, ensure the device settings are configured to turn off the screen when you haven't
used it for a length of time. See About Sleep state, page 36.
For more information on making your battery last longer, refer to the help topic Get the most life from
your battery on the google.com support site.
Spectra Geospatial Ranger 5 Data Collector User Guide | 39
Getting started:basic operation