I bought the battery in the hope that my still fully functional mobile again runs longer. However, the battery does not work at. It does not respond, the phone can neither turn nor charge! A closer comparison with my old battery, I realized that a little difference there. The connection to the mobile phone (the three metallic squares) lie much deeper in the battery than the original. So it can not flow and the battery will not charge. I'm pretty sure that the NO ORIGINAL BATTERY is and I am therefore very disappointed! That's cheating!