Is it normal for my iphone charger adapter to heat up while charging iphone?

Is it normal for my iphone charger adapter to heat up while charging iphone?

Yeah that's what happens to me

Mine does that so I hope so!

Yes definitely.

To heat up a little, yes that would be normal. But if it is heating up a lot then there's a serious problem. Especially if you have purchased a charger that is not genuine, for example cheap chargers from ebay imported from china. I have heard in the news just the other day that a lady was electrocuted whilst using her phone which was connected to the mains, and another person's socket burnt up.

So if you purchased a non genuine one and it is heating up a lot, then you should chuck it away and get a genuine apple charger. But if you already have a genuine charger that came with the phone and or you bought separately, then you still should replace it if it is heating up too much if it is faulty.

Well I have used my iPhone 4s on full charge and I can tell you it's gets very warm at 60% charge.

Yes it will get hot: if it's Ouch! Hot then it needs looking at or replacing