Some more technical details between the Qi and powermat (PMA) wireless charging standards...
When it comes to Qi and PMA, they both use inductive charging, but the differences are that Qi’s wavelength is 100-205kHz and PMA’s is 277-357kHz. Otherwise, the method itself is the same. The rest of the differences have to do with the driving forces behind each standard.
For those interested, you may want to read these
Can someone with a multimeter measure the output voltage off the Qi charging back cover? Would also like to know which pin receives positive vs negative to see if one can get POS ATT D850 to detect charge, might be able to hack some way around to using the Qi charger.
If someone in the bay area is willing to let me borrow a Qi back and charger for about half a day even that would do.
Screens in order of size:
Ngage, E71, HTC G1, Dell Streak, GT-N7000, LG G3, Ainol Novo 7 Tornado, iPad Air, Eee PC, MBP Retina 15, 2 x S2409W, P50VT20D, LG HX300G.