My experience? The first battery I ordered turned out to be a dud. (not from Ifixit). The ipod would not charge even though I disconnected and reconnected the battery twice. The second battery worked OK straight from the off. My tip? Don’t put the back of the device fully on before you try to charge up the battery. There is room to get a charging lead into place without the back being fully on. Saves a lot of trouble if your new battery turns out to be faulty.