I've got a iphone 5 yesterday I plugged it in to charge then the screen died slowly, I got the phone to turn on by holding the power on button and the home button. took it to a shop, that said it'll be the charger pin, this was replaced I still had the problem, they said I can only charge it via mac or PC?, but I kept taking my cables in and out now it's working but the charge is going rapidly, will this problem actually be the battery?