I have a 12" pb of the last rev. It is about 10 months old and I am noticing some weird battey problems. The battery charges and drains fine, but when the battery has 45 or less minutes, it will suddenly jump to 0minutes remaining and the computer will actually die unless i plug in the power adapter. When I do this, the time remaining to charge doesnt always go down, it sometimes keeps telling me its going to take more time to charge, If anyone can tell me how, I will post my coconubattery stats. For the meantime i have a max capacity of 75%. 3 days ago I had a max capcity of 80%.