spot welder, arc welder, battery charger, vehicle booster in one unit with micro- ... parts and Micro-processor control.- Integrate spot welder, arc welder, battery charger, vehicle starter, melting welder into one unit.- Realize spot weld, washer ... duty15%20%20%Spot weld duty5%5%5%Max. starting Amp 700A800A900AMax. charging Amp80A90A100ACharging Voltage12V, 24V12V, 24V12V, 24VPower supplyAC 220V ...