New question, new post. Battery usage seems to be a lot poorer after\nupdating to Maverick's. The only difference now is that I'm using\nMessage Notifications for iMessage, FaceTime, an email. I know that\nkeeping those open and running in the background will impact battery\nusage somewhat but it does seem to more than what I would expect. Or is\nit? Would calibrating my battery for the new OS improve that somewhat?