Just had the dealer install my second battery in less than a year. Dealer told me that you cannot let these cars (02 coupe) sit for more than 2 to 3 weeks or the battery dies. I thought It could be an electical fault (short somewhere or charging system malfunctioning). But after having kept the car for two days they tell me the electrical system is ok. Has anyone experienced these problems? Or is it common on this car? I have just purchased a CTEK battery charger for winter storage. Hopefully that will keep the battery charged during the winter months.