So I got this retina macbook pro on Friday, and on first charge, it lasted around 6 hours on normal settings. Now, a full charge will only bring me 3 hours of time. I found and tried the following solutions by various sources: - Uninstall "publish to kindle" program - didn't use migration assistant, so don't need to delete that one corrupt plist file - install gfxcardstatus and turn it on integrated only (I don't find this an acceptable solution, btw) - reset SMC & PRAM Since I got it, I: - installed 10.8.2 - installed various other programs, like SetResX, dropbox, bettersnaptool, XCode, Steam, google chrome,... This is what coconutBattery has to say: Current capacity: 8361 mAh Design capacity: 8460 mAh 99% Mac model: MacBookPro10,1 Age: 1 weeks Battery loadcycles: 4 Battery temperature: 30.9°C Battery power usage: 29.0 Watt What could the difference be? The largest change between the first day and now is that I installed 10.8.2. Is my battery botched?