Save energy
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 device.
● Disable unnecessary sounds, such as keypad and ringing
tones.