I had a similar charger issue with my original Airpad 7. I found one online that matched the specs & came straight from China. I figured since that's where the original one came from, and it looked the same, it was probably the same one. I ordered 2, they were cheap & waited patiently. In the mean time I charged it through the mini usb. It took a long time, but if I watched my usage and connected to a computer overnight it was ok. Unfortunately one day the battery discharged completely & it wouldn't boot back up. I contacet >*<d X10 & was told to send it back (at my expense) but they popped a new motherboard in it and I had it back in just a few days. While waiting for it to be returned to me, my chargers arrived from China. The voltage was correct and the ends fit as well as the original charger. Sadly they each only lasted a few days & then just died. I actually heard one of them make a popping sound. So I have the AP back, it works better than it did when I first got it, but no charger.
I was told at Best Buy that I could only get a new charger from the manufacturer. Radio Shack had 2 different universal charging systems that would work but ran $40-$45. That seemed a lot to pay for a tablet that has dropped in price twice since mine was ordered. If anyone can find a charger that is affordable & lasts more than a couple of days, please share that information. Thanks!