Hey guys, I own a Mid - 2010 MBP, only a few months old, and I've got a question about calibration. I don't have the time to wait a few more hours for the battery to drain, as I have already let it charge fully, and sit with the adapter for 2 hours. Now, I must wait for the battery to drain, then let it rest for 5 hours, but the battery still has about 3-4 hours, and I can't stay up . What should I do ?