Not eligible for a new battery, and have not had any problems that are worth an hour and a half drive to the dealer. (A squirt of lubricant here or there does not constitute a problem) All of the "overmaintenence" called for by Daimler/smart is either unnecessary, (except to the dealer's bottom line) or can be performed in my own driveway. This car isn't made of crystal glass, and it's not going to break just because it's being driven. And those of us who choose to add bits and pieces that are not out of the smart playbook ASSUME THE RISK of using those parts. (Got that, Jwight?) The sky isn't falling...........