Ios 6.0.1 update killing Iphone 4s battery?

I updated my Iphone 4s to ios 6.0.1 the other day and the battery life is not good on it anymore, ill take it off of the charger and within an hour the battery life will be at 90%. I made sure to close out allof my apps and everything but nothing seems to be helping. Is anybody else having this issue? And is there a way to fix it? Or is there any possible way to undo this update and go back to ios 6.0?

Sorry, but you can't go back to 6.0 because Apple stopped signing SHSH blobs for the 6.0 firmware. You're stuck on 6.0.1.

Sorry your stuck with it, this is a common issue with the new update as well as many others. With the direction iPhone is headed in I would suggest an android device from HTC. IPhone used to be great now they're just falling behind the times.