Hardware Reference
In-Depth Information
The Monitor page in DU Battery Saver lets you see how much power each app is using
and manually shut them down
Display
The largest power user that you have control over is the display. There are two settings that
affect how much power the display uses, brightness and sleep time.
The brighter the display is, the more power it uses. It's a good idea to keep Adaptive Bright-
ness, the default, turned on, so the device can adjust the brightness to the ambient light. If
you manually set the display to the brightest setting so you can read it in bright light, it uses
a lot more power.
The other setting, sleep timeout, sets the amount of time the tablet is idle before the screen
blanks. The default of 1 minute is good in most situations, but if your battery is low or you
won't be able to charge your device for a while, try setting it to 15 or 30 seconds. On the
other hand, if the phone or tablet is plugged into a charger, you can set the timeout for up
to 30 minutes so you're not having to constantly use the power button to wake it up.
To change brightness settings, open Quick Settings, then drag the Brightness slider to
manually set brightness. To turn Adaptive Brightness off or on, open Settings, then Display.
You can also change display timeout from this screen.
Animated Wallpaper
Animated wallpaper looks cool but uses battery power. Turn it off by opening Settings, then
Display. Tap Wallpaper and choose any wallpaper other than Active Wallpaper.
Airplane Mode
The radios that your phone or tablet use to connect to Wi-Fi and LTE use a lot of power,
especially in areas where the signals are weak. The Wi-Fi transmitter keeps trying to main-
tain a connection, and LTE transmitters increase power in fringe areas in an attempt to stay
connected.
Bluetooth also uses a radio to connect to Bluetooth devices such as headphones, speakers,
mice, and keyboards. Bluetooth is actually pretty efficient, because the radio goes to sleep
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