Hi, last night I plugged my iPad 3 into the charger that it came with, verified that it was charging, and left it to charge. Some hours later I woke up the display to see how far it had gone, and it said "Not charging" next to the battery level icon -- but it wasn't at 100%. I unplugged the USB end of the cable from the charger and plugged it back in again, and it started charging again. I was curious, has anyone else observed this type of behavior? Does the charging cycle periodically stop charging for some reason before resuming?