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The Basics
If you add a shortcut for a contact to your Home screen, you will be able
to open Quick Contact for that contact.
Optimizing Battery Life
You can extend your battery’s life between charges by turning off
features that run in the background. You can also monitor how
applications and system resources consume battery power.
Tips to extend the life of your battery
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Turn off radio communications that you aren’t using.
If you aren’t using Wi-Fi, Bluetooth, or GPS, use the Settings menu to
turn them off. See “Wireless & networks” on page 242 and “Location
& security” on page 247. (Note that the GPS receiver is only turned on
when you’re using an application that makes use of it.)
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Turn down screen brightness and set a shorter screen timeout. See
“Sound & display settings screen” on page 246.
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If you don’t need them, turn off automatic syncing for Gmail,
Calendar, Contacts, and other applications. See “Configuring Account
Sync and Display Options” on page 101.
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Use the Power Control widget (located on the fourth Home screen
pane) to control the wireless connections, GPS connection, Bluetooth
power, display brightness, and syncing activity.