Lately my battery life is horrible after I close the lid on the laptop (MBP 17). When I first got the computer back in 2009, it would go days without draining but a few percent. Last night I closed it at 12:30 and it was at 60% and when I woke up it was at 4%. Can anyone help me with some settings that may have changed? I use it for my ATV2 so when it is plugged into power it won't put the harddrives to sleep. This seems to be around the time that battery life has also diminished.