I purchased QI set for Galaxy S3. Polarity is correctly, but unfortunately receiver did not fit "plug and play" as it's too wide and also pins are more wider on S3.

Anyhow, small modifications. Rotated receiver 90 degrees and recycling old led stripe to make flat cable and now it's working.

Receiver has 1000mA input and 600mA output. Charging current fluctuates but 620mA is maxium which I have noticed for this receiver. Voltage is stable 5.00 volts when unplugged.

Phone seems to need placed pretty accurately to pad while charging. As this is my first wireless charging device I don't know if that is normal or not

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