Yea Im to lazy to do that, Im getting an arduino one and connecting it to boat battery wich delivers 800a wich should be enaugh I guess
this comes from his blog https://blog.naver.com/aulakiria/220992039512
"About using car battery :
I have never done spot welding using a car battery.
I was told that a person used the 100A deep cycle.
Batteries vary by manufacturer.
In spot welding, the peak discharge amount is more important than the ordinary discharge amount.
The battery only indicates the normal discharge amount.
You can use two or more batteries in parallel."
with that said “optima red top” AGM 800a been scanning that thread again… has anyone done the car battery?