I was told by the Apple store in Townsville that chips are installed in genuine leads and chargers, and the Ipad ( maybe all other Apple products ) can sense the chip and accept a charge, apparently this was done to stop fires that he claimed to have happened. My old Ipad charges on near anything but my new one which isnt quite a year old now is a nightmare to charge at times.
I purchased a Chinese USB dash charger to fit to my Bushbaby, the Ipad wont charge from it, every other USB system I have works fine. So I'm going to take it and a small 12v battery and every lead I
have along with my Ipad to the Apple store and demand they sort it,
Steve