12V Portable Spot Welder Spot Welding Machine DIY Kit Perfect For Car Batteries Lithium Batteries

12V Portable Spot Welder Spot Welding Machine DIY Kit Perfect For Car Batteries Lithium Batteries

Description:
The circuit board of this spot welder can be used for welding 18650/26650/32650 lithium batteries. It is portable, stable, reliable, durable, and cost-effective. It can be connected to your car starter battery, or a high-power battery pack. Just connect it and you can use it!

Users need to prepare their own 12V battery for power supply, and the welding current is about 100A~200A. It is suitable for common 0.1mm~0.15mm nickel-plated sheets. Please make sure that your battery can have a current greater than 100A, otherwise it fails to weld!

Features:
- 2MM long-life soldering needle adopts cold pressing process. With extremely low internal resistance, it can withstand extremely high temperatures
- Super soft silicone wires can be bent at will, making operation easier
- 35CM soldering pens make it more convenient to weld
- Fastening screws adopt non-slip flange nuts and Phillips screws to increase the area which current passes
- Cold pressing process and large-area contact pure copper joints can effectively reduce internal resistance

Parameters:
- Power supply voltage: 11.5V-14.8V
- Working current: 100-200A (best current: 150A. Discharge below 100A, it will not work)

A battery with a large discharge current will directly affect the welding effect. The following batteries are recommended:
* 36-45ah Lead-acid battery with good performance and small internal resistance (internal resistance is less than 10 milliohms, discharge current is greater than 100A), such as a new car starter battery!
* 4000mah 35C-8000mah 30C 3S model airplane lithium battery pack
* 30-35ah capacity 18650 battery pack

Power Supply Requirements:
- Spot welding uses the principle of rapid local heating and cooling with high current, and requires sufficient current supply. Generally, the current of 0.1-0.15 nickel-plated sheet welding is about 90-150A, so the working power supply of the circuit board must be greater than or equal to 150A.
- The following battery packs can be used as working power sources: 12V car starter power, 3S high-rate battery pack for model airplane, three-string high-rate lithium battery pack, 409003 string battery pack for Hitachi, lead-acid batteries with good performance above 12V20A.
- Calculation formula: capacity x discharge rate = load capacity. Take 4000ma aeromodelling battery as an example, the discharge rate is 45C (4Ax45C=180A).

Package Included:
- 1 x Spot Welder Kit

Note:
- Batteries are not included.