Samsung Galaxy Y Pro GT-B5512 quick Quick Start Manual page 9

3. When the battery is fully charged, first unplug the
travel adapter from the device and then from the
power outlet.
Do not remove the battery before removing the
travel adapter. Doing this may cause damage to
the device.
To save energy, unplug the travel adapter when not
in use. The travel adapter does not have a power
switch, so you must unplug the travel adapter from
the outlet when not in use to avoid wasting power.
The travel adapter should remain close to the
socket when in use.
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