I bought this battery as a replacement because the original battery has subsided with the durability. The performance and durability is the same with an original battery of Samsung, but since I have this battery in my Grade 3, it depends continuously on, or the screen suddenly no longer rotates. Also, the Tel. Become slower in his remarks. I first did not know why my phone. So rum spins until I used my old Samsung battery. Since my phone is running. Again correctly. I've now an original Samsung battery purchased, since the score 3 runs perfectly again. But better to buy an original !!!!
