When you have fully charged the battery and
disconnected the charger from the device, unplug the
charger from the wall outlet.
You do not need to charge your battery so often if you
do the following:
Close and disable applications, services, and
connections when not in use.
Decrease the brightness of the screen.
Set the device to enter the power saver mode after
the minimum period of inactivity, if available in your
Disable unnecessary sounds, such as keypad and