What can I say except that after six months the battery usage takes only a few hours? (I got it in September, we are in January ...) I'm really disappointed because it worked well the first month but it seems she decided to make my vile hell. It's simple, I can not use my phone continuously for more than 1h30 may not be able to call in the day if I need it ... When the battery reaches 10% charge remaining, do not expect to save because it means he only has a few minutes of life !! I come to think back my old original battery in my future trips ... Really disappointed.
EDIT: After contact with customer service, new battery was sent to me. I thank him very much for this very quick replacement. The battery seems to work very well, excellent battery life.