Lion Battery Drain Issue Solved

My MacBook Pro went from around 7 hours of battery life to about 2 hours upon installing Lion. I tried everything that you can think of to correct the issue including reformatting the HD and doing a clean install of Lion. Apple engineers couldn't figure it out either. Apple even gave me a new battery, and the issue still persisted. In the end, it turns out that Carbonite's software that supposedly updated to run on Lion was using about 75-80% of my CPU. It was draining my battery. I deleted the Carbonite app and my battery life is back. I know that others have been having issues similar. Hope this helps.

It was a pain trying to trace it down, but I got a free battery for my MBP out of it.

Go into Utilities and open the Activity Monitor. Look for processes that are taking up large percentages of your CPU. The one causing my issues was labeled Carbonite Daemon.