4V-12V Portable Mini DIY 18650 Battery Spot Welding Machine Pen Storage Machine Welding Equipment Without Needle

Data 1 Voltage 4V 12V over voltage will burn 2 Support one key switch3 Support automatic shutdown will automatically shut down when not in use 4 Support pulse time adjustment a total of four adjustable Note 1 This type requires self welding wire and spot welding needle 2 Avoid holding capacitors and batteries which is very dangerous 3 It can be used on lead acid batteries above 20A can also be used on aircraft model batteries car emergency power supplies or can use 2 strings of super farad capacitors 4 Please be careful not to use too much voltage or use too much current otherwise it will burn the power tube Generally the normal current is about 700A Packaeg includes 1 x Spot Welding Machine Pen