Magnet keeps good

I have charged the phone a few days so, but if you once falschrum stops the loading station (which does not go, but I wanted to try) then shuts down the phone and back up, but not the kind where you PIN again to enter. Since I do not yet become rather unappealing that the magnetic loading. I think I once got from my phone a little electric shock, but I do not sure if this is related. I use it in any case no longer, because I do not trust the roast. My brother uses it currently, he has not said anything about the function. The magnet holds but quite good on the site, so it is not too weak, as is told by some charging cables.