Galaxy S4 battery charger / Batterie Ladestation

This is a simple, but very nice and easy to make battery charger for the Galaxy S4 battery. You need to buy the Lithium Battery Charging Board with Micro USB plug from ebay for 1€. Mine is from here: http://www.ebay.de/itm/380857012621?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

For the battery pins, I used some strong copper wire, which can spring a bit or like you can see in the first design, a thin and strong metal plate I hat lying around. Then you just bend it with some sm