Fero A4001 User Manual page 10

Insert the plug of the travel charger to an appropriate power outlet.
During the charging, the battery level grids in the battery icon keep flickering till the battery is fully
charged.
The battery icon does no longer flicker when the charging process ends.
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 > More
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
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Battery. The Battery Use screen
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