I too had this problem. At first it charged, used it til the battery needed charging, would not charge for 3 - 4 days of trying. Tried different outlets, left it overnight, only would charge about 14%. Tried charging from GFI outlet and charged fully. When needed charging again, would not charge in same outlet, tried different outlet, then dead and could not boot at all. Tried for 5 days after that to charge it, and tried usb charging to my computer which did not work. It was playing with me with the inconsistent charge and, just when I think it would be ok, it would not charge again. At that point, it was too late to return it where I purchased it to get a new one. I had to send it in to Asus and they had it for about a week and just emailed that they are sending it back. When I called Asus support to see what the problem was, they stated the tablet had ALL bad display ports. They repaired and upgraded the unit and are sending it back to me. What? Bad display ports? Anyway, this is what they found in my instance. Should have just given me a new one.We'll see what happens when I get it back. You think enough people would have reported this problem by now that they would retrofit.