Rapid Battery Drain after 9.03 update

After the 9.03 update - my 55 seems to lose battery at about 10% per hour!

I have turned it off and back on.  I have not added or removed any apps.  My battery life has always been great - but after the update it is very bad.  

I tried to reset to factory and turn off auto-update.  It seemed to be better for a while.  But I think it updated anyways and now it is draining the battery way too fast.  

This is not acceptable.

Is there a way to go back to the earlier software version and not allow any more updates?