Share your experience!
There are myriad posibilities, you could boot in safe mode and see if you experience the same problem.
There's few ocassions when my phone will drain battery very fast. Most of the time, this is due to some bad sync for the Google Accounts.
I will go into Google Accounts, and check if there's any that is having sync problems, then uncheck those, I will then check it back later. And make sure there's no sync problems.