I am very unhappy about this. Indeed, I replaced the original battery by one purchased: result, my phone is unloaded in less than half a day. Another imperfection: I loaded my battery to maximum and éteignais. When the next day I rallumais, it was only 75 ° / ° load. Why? In summary, I am sorry to say but the product is not good, so I advise you not to buy it. Sorry !!!