Hi, I'm going to Berlin next month so I searched for a German android forum - I assume that you guys know best. Sorry if I'm asking a question that has already been answered, I can't search here. Your answer would be greatly appreciated. So, where can I buy a replacement battery in Berlin for the SGS2, preferably a genuine one, preferably in the city center? If anyone here bought one, how much did you pay? Thank you very much!