Hi Guys. A friend of mine just struck a great deal on a 2010 2.0 Roadster. The seller priced it with a "defective battery", however the battery is working just fine, but has had a weird issue the last two years. I have not seen the car myself yet so I have not been able to read out any logs or similar, but the explination I got is as follows: - The car performes great and has been used for commuting every day. - But if left on charge for ~a week the car apears to be dead (I don't know what they mean by "dead"). - To get the car back to life it needs to sit unconnected over night, then it appears normal again. - However, if the car is parked for over a week without beeing on charge it works just fine. Again, I don't have any details yet (but will update you guys when I have seen the car myself), but Tesla has changed the "brain" (I guess this means the PEM). They recommended pack swap. But I guess this is partly because the alternative is sending the pack back and forth to California? Can it be some kind of situation where a maintainance charge puts the pack over a safe limit (or a false positive of this), and when the pack rests it gets down below this limit? Anyone with suggestions on what this can be? I guess the solution for my friend is to have the charge on timer or something.