I can over the life of the battery not say anything bad, holding just as long as everyone else. BUT: After less than a year the battery has completely denied his ministry. Had dropouts in the power supply and has totally deformed in the cell phone during use, so that a change with difficulty and mechanical means was possible (which of course has left its mark on the mobile phone). Mind you, normal use, do not leave around outside or dropped into water !!! That must not be.