I also ordered one of these, seeing how bad everyone else's was doing, I turned down the pot on mine to a current draw of 450ma... It still works, and has about 10 min on it, I wonder what the diode is rated at? I don't think its even a 500mw diode, more like 350 or so, but I could be wrong. :undecided: And this is supposed to be 200mw! Maybe 200mw input power? I started out at 2.2v on my lab power supply and raised the voltage untill I saw the current exceed 600ma! The pot on the board was cranked all the way up before I changed it. After I adjusted the pot, I tried turning the voltage up some more and the board started to get really hot at about 3.3v, I was trying to get it up enough to put the module into an 18650 host, so unless you add some voltage drop diodes or some other voltage limiting part in series with the 18650, it wouldnt be safe to do this.
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