Going to get lit up by 12 volts DC? A smart man would assume that the person doing the cutting (sawing) won't try to cut the positive AND negative cables at the same time but...Rock on with your gear and be safe but for fucks sake your ass will get lit up like the Christmas tree in National Lampoons Christmas Vacation if you cut a battery cable with that knife. Get some real dikes and leather over rubber gloves. Be safe