My wife's iPhone 4s has recently developed a problem with the battery running down very rapidly. I have made sure there are only the minimum apps running and sync is not enabled, but it still is happening. This has happened in the last few days which coincides with a recent iOS upgrade. In searching Apple's forums it appears this is happening to some users.
We have run Apple's diagnostic and run it with "send your device in" as a response. That's not going to happen. Could we take it to the store and swap units or do we wait on a software patch?
Thanks,
David