First time spot welder. Got the cheapest sunkko welder and it would not weld properly. So I got a bigger one, and it seems to blow out my welds a bit. If I use lower power they don’t stick. I’ve cleaned the electrodes, used firm pressure. And I just can’t get it to look as nice as some factory welds.
I had it set too high at the beginning (left) and can get reliable welds toward the right. Replacing the batteries in a portable power bank that got left in a hot car too many times. Once I get confident I’ll move on to the 12s7p monster on my desk.