Checking The Battery Charge Status - Samsung GT-I8190 Quick Start Manual

Getting started
After fully charging, disconnect the device from the
charger. First unplug the charger from the device, and
then unplug it from the electric socket.
Do not remove the battery before removing
the charger. This may damage the device.
To save energy, unplug the charger when not
in use. The charger does not have a power
switch, so you must unplug the charger from
the electric socket when not in use to avoid
wasting power. The device should remain
close to the electric socket while charging.
Checking the battery charge
status
When you charge the battery while the device is off,
the following icons will show the current battery
charge status:
Charging
12
Fully charged