Charging problems - iPhone 5 with iOS7
I have an iPhone 5 with iOS 7. Since yesterday my phone says that it's charging but it ain't. Sometimes it says that it has 50% battery, sometimes increases (without charging) and sometimes decreases a lot (without using the phone and even connected to the wall, computer o car). I don't what's happening to the phone.
Any help will be appreciate!
iPhone 5, iOS 7.0.2