I recall dire warnings against battery boosting (and even battery charging)
the fuel injected Type III's and IV's that used that beastly electronic
fuel injection (D-Jetronic?), as it could fry the computer.

Do these warnings apply to the later AFC fuel injection used on the later
air-cooled buses and Vanagons? (I'm guessing the air-cooled Vanagons used
the same AFC  F.I. as the '75 and on Buses -- someone please correct me if
I'm wrong!)
Unlike the Rabbit and its counterparts, the AFC F.I. used in the Buses did
have a computer box, instead of being totally mechanical :-(

Thanks,
Doug