Despite promises of fixing the battery related problems of iPhone 4S users, iOS 5.0.1 has failed to do the expected.
That’s right! Users are still waking up to see that the battery of their iPhone 4S got drained in one night.
Users are venting their anger on the Apple support forums.
However, users are appreciating some other features of iOS 5.0.1 but the disappoint regarding battery issue still persists.
Source: 9 TO 5 Mac