Haier 2-Piece Micro-Mini DC Car Charger for iPad iPhone Android Mobile Devices $7

As the resident charging expert i will Explain a few things about chargers and high current charging mode:

Industry standards are: to enable high current charging you need to have the 2 data lines shorted together. This tells the tablet/phone its not plugged into a usb port(500ma limit).

However no one goes by standards. So there trick is they put a voltage divider on the shorted data pins from the 5v/ground connections so that there is 2-4v on the data lines. This way you have to use their charger.

So what i do is mod the "standard" chargers with 2 resistors of equal value and pop them inbetween the data lines and 5v/ground. so they sit at 2.5v, which is good enough for all devices.

As for the 2amp thing. A dead tablet will suck 2amp till its 20% charged(15min tops), then it sucks 1.5amps, by 50% charge its down to 1amp, by 75% you are lucky to be sucking 200ma. This is a linear graph, i just noted some points.

In other news my favorite charger is the tmobile premium 3amp model with 2 usb slots. Its got the blank pads for the 2.5v mod on the datalines already so its real easy to mod.