Could you just post your battery info? Under > About This Mac > More info > Power I read on the apple support forums of defective batteries, and everyone has the Sony model ASMB012. I have 2 batteries crap out on me, and I just bought a new one from the apple store today. It turned out to be a ASMB012, unforunately. I just want to know if anyone has this model battery with no problems. Edit: I mean model right before the Uni-body MBPs.