Can anyone please explain to me when using battery power supply unit such as Schumacher inc100, can we crank the engine with it connect to the battery?
I couldn't find anything in the manual to say one way or the other. But, I figure if it was a no-no, they'd have spelled it out. I can' think of any power supplies or battery chargers I've used that I had to disconnect from the vehicle before cranking to avoid damage.