i guess im doing what you call a calibration, charging the phone from dead to a real full charge. i think its only been about 2hrs. but its showing the plug in the battery and not the lightning bolt. but is it doing a trickle charge now? how long should a full charge take? i think i might leave it plugged in while i go to sleep and unplug it in the morning before i go to work around 7am. im sure that wont harm it, right?