I bought the Motorola BR50 for my Razr V3. It was sold by Eforcity and was advertised as new. But when I used it, the performance of the battery was a lot worse than the old battery that I was replacing. For starters, it came in a brown envelop and inside was the battery in a small simple plastic bag. Stand-by time of the battery was only about a day. And even at full charge, after 2 short calls the battery starts draining already. In my opinion, Eforcity sold me an old battery that is completely useless to them, and to me. I don't know if Amazon could do anything about this kind of sale, but I hope they do because it is just not right.