Hi, The power converter for my 2009 MBP finally broke the other day, and I ended up buying this one because it had reasonably good ratings, wasn't $80, and wasn't somebody trying to pass off their third-party charger as a genuine Apple one, which seemed to be the case for most if not all of the other chargers in that price range. It charges my laptop just fine, but it doesn't seem to stop charging when the battery is full (I don't have OS X on this computer, but the Windows 7 battery indicator says "100% available (plugged in, charging)"). The light on the charger also never turns green. I am concerned that this will damage my battery or even be a fire hazard. If someone in the know could tell me whether or not this is a problem, I would really appreciate it. Thanks!