I have a MY 2010 Cayman S. My battery just died, and would like to replace it with an genuine Porsche one -- yes, I'm that OCD. For some reason, this car came with a 70 Ah battery, part number 99961107020. My dealer has just one available, but has some scratches. They also have several 99961107021 (part number ends in 21 as opposed to 20). They say the 21 replaced the 20, but I'm not so sure. I've looked over the web, and while the supposedly new part number shows as a genuine Porsche battery, it is not associated to any particular model. Any ideas?
Thanks a lot for reading