Neil R. I have had a number of battery changes for my iPhones over the years and have always been dissatisfied with the result: a faulty battery has been replaced by yet another faulty battery which doesn't last. You can tell immediately the battery is faulty by the rate at which your battery is losing charge. So, I tried LoveFone with two phones (my wife's and mine) and we have been very happy with the result: normal loss of charge over 24 hours. The service is also excellent and friendly and I would highly recommend. Forget the other places on the High Street.