Do I have to charge my iPhone during 12 hours when it turn off ? I just bought it
Charge your iPhone whenever you want to. There are no limitations on when or the duration of charge. Normally it will charge in 3-4 hours with the wall charger, longer if you use a computer USB port.
The myth is to charge your iphone fully, then run it all down for the first 3 times of having a new phone. and apple said that should be done once a month
Apple says to run it all the way down one time, once a month. Not 3 times. This is to recalibrate the battery gauge, not to condition the battery.
I said myth
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