Can I revert back to iOS 5.0 on my iPhone 4S?

I have been using the Sprint version of the 4S since the day it was released and never seemed to have an issue with battery life. However, after downloading the iOS 5.01, my battery life seems to be markedly diminished. Thus, is there a way to revert back to iOS 5.0 until Apple has a chance to better understand what went wrong with 5.01?