Ive tried using my cell phone car charger with a spare TF701 USB cable/Charging cord but it is like a trickle charge. I did some research and found that if you use a car charger that puts out 5V 2.1A of power it will only charge the tab at less than 1 amp. The problem seems to be that unless pins 2 and 3 are shorted on the usb connector in the car charger it wont use the higher amperage charge. Seems that these devices sense if those pins are shorted and will go into ac charge mode if they are meaning that they think they are plugged into the wall charger.
I ordered a 2.1 amp model car charger and will short out those pins to see if in fact this is true. Charger should be here today.
I ordered a 2.1 amp model car charger and will short out those pins to see if in fact this is true. Charger should be here today.