I bought MOSFET PCB for spot welding like this one - Link
Usually this board should be combined with LI-PO battery, but I have at home 1kw server power supply and I try to use it. However, the short protection kick at the moment I try to spot weld, and its turn off. Did someone try similar PS for this application and what you can recommend making it work? I was thinking to put battery pack in parallel, but I will need also charging circuit.