Spot Welder DIY Kit 99 Gears Power Adjustable Mini Spots Welding Machine Control Board for Welding 14650 17490 18650 Bat

Overview This is a kind of fine quality spots welding machine control board high power output design 99 gears of output power adjustable more accurate welding and it can continuously welding thousands of points on nickle nickelplate sheet The welding spots are accurate and beautiful support welding 0 05 0 3mm nickel sheet iron sheet stainless steel sheet Power Supply Requirements 1 The old lead acid storage battery cell 12V 20AH 80AH or 4 5S Super Farad Capacitor If the battery is used for more than one year it should use a larger power more than 100AH the new battery cannot exceed 45AH if it exceeds 45AH the tube will explode 2 12V Jump Starters for car emergency start it must be EC5 interface 3 3S 4S 25C 60C model aircraft battery the output cable should be XT60 NOTE It is forbidden to use switching power supplies transformer chargers and power banks for power supply which will damage the circuit board Features 1 It adopts 5pcs MOS tubes and the max current is up to 2390A 2 High power output design 99 gears of output power adjustable more accurate welding and it can continuously welding thousands of points on nickle nickelplate sheet 3 The welding is based on the principle of high current and high temperature rapidly melting the part of nickel sheets and cooling 4 It equipped with 2pcs copper bars which are greatly increase the overcurrent capacity 5 The welding spots are accurate and beautiful support welding 0 05 0 3mm nickel sheet ir