Ok I have an ebay "IMAX" charger, this one right here: http://cgi.ebay.com/Battery-AC-WALL...529422?pt=PDA_Accessories&hash=item3f01d2c34e and I believe there's another brand that's pretty much the same thing(Yiboyuan); these chargers double as a USB wall outlet/adapter. Anyways a couple days ago I plugged in the USB cable to my phone and although it gave the "charge status" on the phone, but the battery did not charge. The phone also got pretty hot. It was at 50% when I charged it and 50% when I unplugged it maybe 3-4hrs later. The USB cable is the one that comes with the phone and works completely fine when hooked up to another wall adapter. Is anyone also using the same charger? If so does USB work fine for you?