Hi, I just got a brand new macbook last week for university in the fall. I LOVE it and want to take super care of it so it will last me AT LEAST the four years. Up until a few days ago, I was using it only off battery and then charging it until it was full and doing that over again. My parents suggested that I use the AC power while I am at home to not wear my battery out. I've been using it a lot in the past few days because I just had my wisdom teeth removed and am house ridden Now I use it plugged in, but I also heard you shouldn't keep it plugged in 24/7. It's confusing I just want whats best for my pretty little macbook!