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12V Spot Welder Set Portable Battery Spot Welding Storage Machine DIY PCB Circuit Board For 18650 26650 32650 Welding Machine ,High Quality Materials

<ul><li>There is a window on the back of the drive part, you can add copper or tin by yourself.</li><li>The external pads for the LED and the on-board buttons are added to facilitate the connection of the LEDs and buttons on the board to other places.</li><li>The upper and lower MOS design is bold and tinned to make the internal resistance smaller and the current stronger.</li><li>Using 25V low internal resistance and high frequency capacitors makes the power supplies more stable.</li><li>This circuit with a 12-V battery will become an energy storage spot welding machine for welding nickel pieces such as lithium batteries and nickel-chromium batteries. According to different configurations, the thickness can be about 0.1mm-0.15mm</li></ul>

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Specifications:Material: PCBSuitable for: 18650/26650/32650 lipo batterySystem voltage: 12-V-14.6VWorking current: 90-150ASuggested battery: (not included)20-45ah Lead-acid battery with fine performance and small internal resistance3.5-5.5ah 45C 3S aeromodel lithium battery pack30-35ah capacity 18650 battery packPackage size: 190 * 110 * 30mm / 7.5 * 4.3 * 1.2inPackage weight: 110g / 3.9ounceNote:If the battery is pretty  and the internal resistance is very low, and then there may be large current overload.If you are not sure about your battery, it's better to extend the wire by around 1 meter with 2.5² or 4² wire, then it will reduce the risk of power tube burnt.Packing list:1 * Main Circuit Board2 * Input Wire2 * Output Wire(with Welding Pen)1 * Welding-Components KitTYPE 2Features:There is a window on the back of the drive part, you can add copper or tin by yourself.The external pads for the LED and the on-board buttons are added to facilitate the connection between the LEDs &buttonson the board and other places.The upper and lower MOS design is bold and tinned to make the internal resistance smaller and the current stronger.Using 25V low internal resistance and high frequency capacitors make the power supplies more stable.Switch Function: press the switch for 1.5 seconds (green light flashes, low power spot welding pulse is output every 3 seconds); press the switch for 1.5 seconds (the blue light flashes and the medium power spot welding pulse is output every 3 seconds); press the switch for 1.5 seconds (red light flashes, high power spot welding pulse is output every 3 seconds); press the switch for 1.5 seconds to turn off the machine.This automatic trigger spot welding machine can weld nickel plating (0.1mm~0.15mm) of 12V lithium batteries and nickel-chromium batteries with a 90A~150A welding current.The following battery pack can be used as working power supply: the battery pack that can start the car can basically meet the power supply demand of this circuit, such as 12V car starting power supply, aeromodelling 3S high-rate battery pack, 3-string high-rate lithium battery pack, 12V 20A lead-acid battery with good performance, etc.Specifications:Material: PCBColor: BlackSystem Voltage: 12V~14.6VWorking Current: 90A~150ASuggested Battery (NOT included): 20~45ah lead-acid battery with good performance and low internal resistance3.5~5.5ah 45C 3S aeromodelling lithium battery pack30~35ah capacity 18650 battery packSuitable for 18650 / 26650 / 32650 lithium batteryPackage Size: Approx. 190*110*30mm / 7.48*4.33*1.18inPackage Weight: Approx. 200g / 7.05ozNote:Spot welding is based on local rapid heating and cooling with large current, which requires sufficient current supply. Generally, the welding current of 0.1mm~0.15mm nickel plated sheet is about 90A~150A, so the working power supply of circuit board must be greater than or equal to 150A.Packing List:1 * Main Circuit Board2 * Input Wire2 * Output Wire with Welding Pen1 * Welding Components Kit (tin straps + nickel sheets + copper insert ears + screws + heat shrinkable tubes)TYPE 3Features:Lightweight and portable, stable and reliable, wear resistant and can provides long service time.Through the MOS tube output, this energy will be concentrated at the end of the welding pen, and it will be heated by short circuit.Fuse the nickel sheet firmly with the battery.And it is precisely controlled by the single-chip microcomputer program without trigger switch.Suitable for welding 18650/26650/32650 battery.

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