Mini Circuit Board Spot Welder 18650 Battery Box Assembly Portable DIY Welding Machine

NOTE This product does not contain farad capacitors and the circuit does not include charging control Features  ●This product is suitable for connecting 2 series farad capacitors 2 8V 2 8V It is recommended that a single capacity of 3000F or above ●The circuit is precisely controlled by the microcontroller program It is divided into 3 power levels 300A power tube X4 is output in parallel  Specification   Color BlueSpecifications 2 8V 3000FCharging Voltage 5 5 6VCharging Current 2 20A Package Included  1 x Main Circuit Board1 x Buzzer2 x Welding Pen With Wire2 x Input Wire4 x Copper Ears4 x M5 Screws2 x Welding Pen Insulation Heat Shrinkable Tube Note This product has updated the style and has the same function as the product in the picture without any mistakes  Detail Pictures