I have been fighting this for a few weeks. One time for about a day my iPad did charge and did sync, but it stopped again about five days ago. I have tried other official cables and official charge pucks. All were the 10w/2A official variety. Strangely, the iPad will charge very slowly on an official charger if the iPad is is turned completely off. I have tried both reset methods, from on and from off. Any ideas besides a factory reset? By official, I mean the official and correct Apple products. I get the "Not Charging" notification.