Hey all, I got the Service Battery notification under the battery icon recently but after unplugging my MBP and letting run off the battery everything is back to normal. I left my machine plugged in for a number of days because I was away, normally I would unplug and run it off the battery on a regular basis. From what I've noticed so far, battery life with PB3 is about the same for me as it was in Mavericks. Just wanted to share this with anyone experiencing something similar. All in all, I really love Yosemite and the transition has been pretty seamless so far. I feel vast improvements in Safari and the new added features are a welcomed bonus.