Hey everyone, I've been getting horrible battery life on my rMBP (somewhere around 2 - 2.5 hours on a full charge doing basic tasks) since upgrading my OS and possibly even prior to that--I'm not sure exactly when started. I reset my SMC and PRAM as recommended on various forums, including the Apple Support forum, and I saw some improvement for a day or so. Then, the battery life deteriorated again and I received a "battery service" warning. I have an appointment with the Genius Bar this evening but thought I'd give you guys a heads up. I'll let you know what I find out but am definitely not looking forward to the possibility of someone tearing into my rMBP to mess with my battery.