http://ecomodder.com/forum/showthrea...aseo-8767.html
Measurements were taken on three different cars, and anywhere from 5A to 20A was required to run the engine. Lights, fans, and defroster grids draw additional power, especially in the winter.
So, a couple of hours out of a
D51R, or maybe 4-5 hours out of a 60lb marine battery. Probably half that in the snow or at night.