Welding From Battery. A cheap welding helmet will work almost as well as a fancy one. Hence resistance spot welding ultrasonic welding and laser beam welding are mostly applied.
I happened to have some nice juicy batteries in the form of a Golf CartHeres me welding a trailer hitch with 18. Its just a pair of jumper cables and a welding rodOh yeah. Hence resistance spot welding ultrasonic welding and laser beam welding are mostly applied.
Before we begin you should understand that welding with car batteries can be dangerous and should only be attempted in an emergency situation and even then the batteries should be covered to reduce injuries you could incur from hydrogen gases building up in the battery and exploding.
Trail Weld is a portable welding kit containing cables to connect two or three 12-volt car batteries in series which will allow you to make welding repairs from anywhere. Heres the simplest welder you can make. Its just a pair of jumper cables and a welding rodOh yeah. After which you can mount the battery and the circuit and connect every mains wire and a switch and you are done.