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.
I just received mine yesterday (it does take a while to ship, but it wasn't a problem for me), and I must say that it's pretty nice.
The Adapter itself is very small, about as small as a 12 volt adapter can be. The cables it came with are also seem really quality with the webbing around them. Worth $7.00 for sure. Since I have an iPhone 5 I need to get a spare lightning cable to keep in my car, but I knew that when I ordered it.
Just a heads up, the micro USB cable that comes with this package is for charging only, it is missing the data wires internally so you will not be able to use it to connect your device to a computer to transfer files and the like.
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