Word is the iOS 6 update for the iPhone 4 and 4s is draining the battery. Yes it’s an awesome update but are the features worth the update. First the maps and now the phone’s battery.
As an iPhone 4S owner, I can tell you from first hand knowledge that my iPhone loses about ten percent of its charge per hour without doing anything but sitting in my pocket. I noticed that with the lock screen set to two minutes, and the screen turned off, the iPhone feels quite warm, as if it’s doing something.
Many have blamed this on the Maps app, but I haven’t even run the Maps app, so for me, that isn’t the problem.
An Apple Discussion board thread has more than 200 entries discussing this problem and some solutions that may provide a fix in rare cases, but it is no panacea for the great majority of users.