Specification:

Name: Spot Welder DIY Kit
Material: Printed Circuit Board
Working Voltage: 6.5-16V
Working Current: <20mA
Standby Power Consumption: <0.5mA
Recommended Operating Temperature: -10°C to 60°C
Voltage: 12.0V
Welding Current: 1700A Max
Welding Thickness: 0.1-0.3mm

Features:

1. Efficient Spot Welding: This DIY spot welder kit features pure copper conductors for enhanced electrical conductivity and heat dissipation, improving the efficiency of spot welding tasks.
2. Welding Pin: The alumina copper spot welding pin is designed to handle high currents, ensuring durability and long-lasting performance even under heavy usage.
3. User-Friendly Design: The control board is marked with positive and negative terminals, preventing incorrect connections. This user-friendly design ensures safe and hassle-free operation.
4. High-Performance Components: Equipped with a high-frequency capacitor with low internal resistance and high-temperature resistance, this spot welder kit can withstand demanding welding conditions.
5. Adjustable Power Settings: The kit offers 9-speed power adjustment options, allowing users to fine-tune welding power as needed. The digital tube display provides real-time visibility of the selected gear.

Battery:

The following battery packs can be used as operating power sources:12V car starting power supply, model aircraft 3S high-rate battery pack, three-string high-rate lithium battery pack, supercapacitor pack, polymer high-rate battery pack40900 3-string battery pack, 12V 20A and above lead-acid batteries with good performance.Calculation formula: capacity X discharge rate = load capacityTake a 4000ma model aircraft battery as an example, the discharge rate is 45C (4AX45C=180A)

Instructions for use:Function keys: 1, for switching machines, 2 for switching gears!

When powered on, you need to press it once to turn it on, the default is 0 gear. Press and hold the button for 1 second to releaseIncrease the gear by one gear, the buzzer will sound, and the LED light will flash corresponding to the gear.For example: 3 gears, the buzzer sounds 3 times, the LED flashes 3 times, a total of 9 gears. 1st to 5th gear spot welding 0.1-0.15,5-7 gear welding 0.2, 8-9 gear welding 0.25-0.3 Press and hold the button again for about 3 seconds. It will power down. In the off state, short press the power on, the gear will return to 0 gear

Package Include: 

1x Control board
2x Input cable
2x Soldering pen
4x Screws
1x Nickel sheet