Portable Power Bank Spot Welder 10 Gears 18650/21700 Li-ion Battery Spot Welder
High Current & Dual Pulse: Spot welding current 800A. Dual pulse welding: Pulse 1 preheats and fixes the electrode; Pulse 2 reinforces the weld. Spot welding cycles: 5 levels, approx. 500 cycles (varies by setting).