Does anybody have any tips for keeping long battery life for multiple years? I just bought a new MacBook and I mostly run it on the power cord. I would take the batter out and just run with the cord when I am not going to be mobile, but the meg safe can come out so easy, so that is not a good option. Should I let the MacBook run on battery power once a day? Or every other day? Just looking for some tips and methods to try so when a year to two from now I find myself needing to be on battery power for a decent amount of time, I will be able to do so. My old PowerBook worked its battery life down to about 15 minutes.