The iPhone 4s battery problem is solely software-related.

Hello iPhone users, the iOS 5.0.1 update was primarily intended to fix battery issues on the iPhone 4s, but after its release, many owners of this iPhone were still experiencing the same problem, with only about a third finding it resolved. The strangest thing is that not everyone had this issue, leading to rumors that the iPhone 4s problems weren't software-related but rather due to hardware issues, particularly with the battery. If it were a software problem, all iPhone 4s units running the same iOS version would have the same issue.
