-10-
Note:
Ensure that the plug of the charger, the plug of the earphone, and the plug of the USB cable are inserted
in the right direction. Inserting them in a wrong direction may cause charging failure or other problems.
Before the charging, ensure that the standard voltage and frequency of the local mains supply match the
rated voltage and power of the travel charger.
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 applications and system resources consume battery power.
To guarantee the optimal performance of your battery, please stick to the following rules:
Turn off radios that you aren’t using. If you aren’t using Wi-Fi, Bluetooth, or GPRS, use the Setting
application to turn them off.
Turn down screen brightness and set a shorter screen timeout.
If you don’t need them, turn off automatic syncing for Gmail, Calendar, Contacts, and other
applications.
Note: On the Home screen, press Menu icon and touch Settings >
Device
>
Battery. The Battery Use
screen lists the applications that have been using the battery, from greatest to least battery use. The top of the
screen displays the time since you were last connected to a charger or, if you’re currently connected to one,
how long you were running on battery power before you connected to a charger. Then each application or
service that used battery power during that time is displayed, in order of the amount of power they used.
Touch an application in the Battery Use screen to learn details about its power consumption. Different
applications offer different kinds of information.
