Hello There, I had the battery fully 16 months in use, before he almost destroyed the entire phone! The back cover was loose. When I nachschaute, I realized that Derr battery was so swollen that he almost "blew up" the back of the phone. Quick battery removed and from the hazardous waste! For the price I would have expected that the battery can not be charged a long time but that it swells fully, I find it highly questionable! Who knows what that can leak chemicals!
