Well I know that some cars recommend not jumping a dead bigger engine battery with a smaller engine battery however the other way around is fine. I always follow the same/same rule if unless the dead batter belongs to the smaller engine. That's what I was taught, I know some cars aren't allowed to be "jumped car to car" at all like the new BMW's I think. :hsdunno:


I'm sure there's others that heard of this. h: