Chosen Solution
I have a nonfunctioning 4s with a good battery and a functioning iphone 4 with a bad battery. Can I take the battery out of the 4s and put it in the 4?
It appears the iPhone 4 battery is NOT compatible with the 4S Battery
No the battery conector is different. Iphone 4s have to holes and the iphone 4 only one. i have the same issue.
