Home and Android basics 37
AUG-3.1-CC-100 Android User’s Guide
Optimizing battery life
You can extend your battery’s life between charges by turning off features that you
don’t need. You can also monitor how apps and system resources consume battery
power.
Extend the life of your
battery
S Turn off radios that you aren’t using.
If you aren’t using Wi-Fi, Bluetooth, or GPS, use the Settings app to turn them
off. See “Wireless & networks settings” on page 269 and “Location & security
settings” on page 275. (The GPS receiver is only turned on when you’re using
an app that makes use of it.)
S Turn down screen brightness and set a shorter screen timeout.
See “Screen settings” on page 274.
S If you don’t need them, turn off automatic syncing for Gmail, Calendar,
Contacts, and other apps.
See “Configuring account sync and display options” on page 103.
S Use the Quick Settings to check and control the status of radios, the display
brightness, and syncing.
See “Status Details and Quick Settings” on page 28.
S If you know you won’t be near a mobile or Wi-Fi network for a while, switch to
Airplane mode.
You tablet uses extra power to search for mobile networks. See “Status Details
and Quick Settings” on page 28.
Check the battery charge
level
S Open the Settings app and touch About tablet > Status.
The battery status (charging, discharging) and level (as a percentage of fully
charged) are displayed at the top of the screen.
Monitor and control
what uses the battery
The Battery Use screen shows which apps consume the most battery power. You
can also use it to turn off apps that you’ve downloaded, if they are consuming too
much power.
