I have an Early 2011 Macbook Pro (13", basic spec) which since I got it (I only just stopped to think about it) has had a massive amount of sleep battery drain.
When the laptop is on and in-use, its battery lasts pretty much as I'd expect (5-7 hours) but if I put it to sleep (no apps running in foreground, RescueTime, Dropbox, Delibar and Droplr in background) it'll flatten its battery from 100% in about 24 hours.
The background apps are exactly the same as the ones running on my 2010 pro, the machines are all but identically setup, but that one in any 24-hour off period gets through about 4% of its battery. Both machines also have FileVault enabled and are running the same build of Lion.
Is there anything I can do to test the cause of this, or should I take it to a genius to inspect?