Samsung GT-I9505 User Manual page 14

Getting started
The device can be used while it is charging, but it may take longer to fully charge
the battery.
If the device receives an unstable power supply while charging, the touch screen
may not function. If this happens, unplug the charger from the device.
While charging, the device may heat up. This is normal and should not affect the
device's lifespan or performance. If the battery gets hotter than usual, the charger
may stop charging.
If the device is not charging properly, take the device and the charger to a
Samsung Service Centre.
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
14
Fully charged