My new rMBP (my work computer) is used roughly 8-10 hours a day, and is generally on and running anywhere from 16-20 hours a day (lid closed and in sleep mode for some of that time), every day of the week. Taking this amount of use into account, what is the best way to keep the battery at it's optimum health over the long haul? Should I cycle it daily, once a week? Is it good to use it on battery power for a short period of time and then plug it back in, or is it best to always drain it down to 0% if you're going to use battery power at all? I killed the battery in my previous MBP (a mid '08 model) in no time because I had it plugged in at least 95% of the time, and that machine didn't see half the use this one does/will. So this has had me paranoid in the first couple of weeks with this new machine, cycling it on battery regularly but perhaps a little often. I know this topic has been discussed countless times here on the forum, but I'm curious how to handle the battery in heavy use, rather than occasional use.