Re: Anyone try welding with 2 car batteries?
Of course, just for emergency trail fixes.
I've used the alternator type welders on the trail a few times, and frankly I wasn't impressed! Wasn't impressed with the $1200 price tag either.
I was thinking if it will do a two or three inches without re-charging - there might be some underhood room available for a tractor battery - small, yet powerful. Then it could be set up to go in series with the regular battery for 24 volts.
If it takes 3 batteries there probably isn't enough underhood room for them.
Cables, welding rod, and a folding canvas hood would make it doable -- for cheap ---- if it works!
A trick I know works - done it a couple of times. 2 batteries in series, the carbon from the center of a regular flashlight battery sharpened to a point, and a coat hanger.
Strike and hold an arc with the carbon for the heat, feed the coat hanger or baling wire like welding with an oxy acet torch. Not pretty, but gets the job done. Again, it's just an emergency trail fix to get you home.