Learn how to weld with 3 car batteries in series. Great for welding in the wilderness or third world countries. These batteries were charged with solar panels. Easy to set up and you can make several welds. Works great when you do not have a portable welding machine and only have a few welds to make. It can realy get you out of a bind if you are way out in the woods. Check out my other videos on how to build a solar panel