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DIY Portable Battery Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welders for 18650 26650 12V

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    $6.76 /$13.13
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    Specifications:
    - Can be welding 18650/26650/32650 lipo battery, it is portable, stable and reliable
    - System voltage: 12V-14.6V
    - Working current: 90-150A
    - Suggested battery:1. 20-45ah Lead-acid battery with good performance and small internal resistance
    2. 3.5-5.5ah 45C 3S aeromodel lithium battery pack
    3. 30-35ah capacity 18650 battery pack
    -This circuit with a 12V 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

    Function Description:

    After power on, press and hold the switch for 2 seconds to turn on
    There are 4 modes, press and hold the switch for 3 seconds to switch to a u201cbeepinchs sound and finish
    Level 1: Low power1, green light flashes once
    2nd gear: medium power1, green light flashes twice
    Level 3: High power1, green light flashes three times
    4th gear: automatic mode
    When the red light is always on, press and hold the switch to turn off the device.
    NOTE:
    If the battery is pretty good 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 2.5u00b2 or 4u00b2 wire, then it will reduce the risk of power tube burnt.
    Package Included:
    1 x Main Circuit Board
    2 x Input Wire
    2 x Output Wire(with Welding Pen)
    1 x Welding Components Kit
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    DIY Portable Battery Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welders for 18650 26650 12V

    DIY Portable Battery Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welders for 18650 26650 12V

    DIY Portable Battery Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welders for 18650 26650 12V

    Customer Reviews

    4.80 out of 5
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    • klemic VIP5
      DE
      04/07/2020

      After I assembled the board with beeper, capacitor and the cables it was not working. There was no power at the welding tips. When checking the boards circuit I found this: MCU output -> drives a PNP transistor -> drives the gates of the N-ch FETs. I post a photo of the schematic: It cannot work. The diode is assembled in wrong direction (the PNP transistor will never switch on) and even if it is reversed it cannot work. The PNP transisitor is always on then because the voltage after the diode can never be higher than MCU power supply (5V) plus diode forward voltage. I removed the diode, PNP transistor and the rest and replaced it by a PC817 optocoupler, after that the spot welder works as intended. (The original circuit may work for battery voltages up to maybe 7-8V but not higher).
      Did the manufactiurer made this change recently? Other users will experience the same issue like me...

      Comments (13)
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    • eyahoo VIP3
      CA
      05/11/2020

      Minor assembly required with soldering iron. The Capacitor and Buzzer need to be soldered on, and leads have to be soldered as well. I put XT-60 on mine so I can power it with a large 5000mah 3S lipo, or use my Lipo charger in "power supply" mode.
      Very easy to do and board is marked for where the 2 items have to go. Assembled min in
      Excellent for spot-welding RC battery packs.
      Works on Nicad and NiMh batteries.
      Also works well for LiPo's. Make sure you lift the Lipo leads up, touch them together and then spot weld. Fold them back down when done

      Comments (3)
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      • 0
        Q: well this work with a 164amp 12v dc server power supply?
        A:
        The electronic power supply might fail if repeatedly short-circuited by the welding. Alternatively, there might not be enough short-term current because most power supplies will instantly shut down when they detect a short-circuit. Remember, the server power supply is designed to operate 164A while the terminals are at 12V, and is definitely not designed to provide 164A into a short-circuit - if the voltage drops towards zero (a short circuit) then the power supply will consider that is a fault condition and switch off. You really should just use the recommended battery, as that's cheaper and easier and proven to work.
        Answered by Coops on 23/03/2020Helpful (0)
      • 0
        Q: can i use car battery?
        A:
        I think that is OK. - Suggested battery: 1. 20-45ah Lead-acid battery with good performance and small internal resistance 2. 3.5-5.5ah 45C 3S aeromodel lithium battery pack 3. 30-35ah capacity 18650 battery pack
        Answered by Liltwas on 16/04/2020Helpful (0)
      • 0
        Q: Will it weld nicd sub c batteries
        A:
        I think that is OK.
        Answered by Anacardic on 04/06/2020Helpful (0)
      • 0
        Q: can you please upload a video on how this product should be used and the precedure of welding batteries using this product? thanks
        A:
        Switch function: press the switch for 1.5 seconds to turn on (green light flashes, low-power spot welding pulses are output every 3 seconds), press the switch for 1.5 seconds (blue light flashes, medium-power spot welding pulses are output every 3 seconds), press switch 1.5 Second (red light flashes, high power spot welding pulse is output every 3 seconds) Press the switch for 1.5 seconds to shut down.
        Answered by Spifit on 16/04/2020Helpful (0)
      • 0
        Q: can I use a 60Ah 400A Lead-Acid car battery with this?
        A:
        Good
        Answered by KazimAnil on 12/07/2024Helpful (0)
      • 0
        Q: Whats machine can work with 4s battery 14.8 volt 7.500 mAh 35C??
        A:
        diy spot welder
        Answered by Fayaz on 23/01/2022Helpful (0)
      • 0
        Q: can I use 4s lipos or just 3s
        A:
        working coltage is 12V,3S and 4S is OK.
        Answered by Bansil on 25/04/2020Helpful (0)
      • 0
        Q: I have a constant 12V output in any mode, a beep but no welding. Any idea how to solve it?
        A:
        Youshould use batteries with high amperage. It's in the description section.
        Answered by ahmetgurkancoskun on 16/08/2022Helpful (0)
      • 0
        Q: can I use psu smps with 12v 29amps?
        A:
        Very nice recommend
        Answered by nameguler on 01/05/2022Helpful (0)
      • 0
        Q: Is there a video or Utube of how it works?
        A:
        There is now a video in the product description that explains everything.
        Answered by 1nformatica on 19/05/2020Helpful (0)
      • 0
        Q: Can i use car battery? 12volt 70ah?
        A:
        12 was 90 a
        Answered by maykil20 on 23/10/2021Helpful (0)
      • 0
        Q: Does it include 2 welding pens?
        A:
        Yeah,as the picture, include 2 welding pens.
        Answered by Dayny on 17/03/2020Helpful (0)
      • 0
        Q: Is it COD?
        A:
        ok 10
        Answered by BG195457125 on 06/03/2022Helpful (0)
      • 0
        Q: Can I wield pouch lipo batteries?
        A:
        20A battery. may be 8s lipo
        Answered by TAURUSFPV on 28/09/2021Helpful (0)
      • 0
        Q: Can I use a 100 Ah 900A battery? Or is it an overkill?
        A:
        itested it by battery 45ah ; it work perfect ; see my video : youtu.be BWGcmCx7lx8
        Answered by BG523410112 on 20/02/2022Helpful (0)
      • 0
        Q: Can i use this circuit with 30A 12V Led Power Supply?
        A:
        30A is probably much too low. I haven't received the unit yet to measure the actual current but will do that when it arrives. I'm guessing that spot welding the metal strips this is intended for requires at least 100A, maybe more like 200A. One way you might be able to use the 30A supply is if you put a very large capacitance in parallel with the supply. The capacitor needs to have a very low ESR (equivalent series resistance). A 50,000uF, 15V, low ESR electrolytic capacitor might work but it may cost you ***** or more. To calculate the actual capacitance required, you need to know the required current and the period of the current pulse and assume a voltage change of about 1 volt, i.e. assume the capacitor voltage will drop from 12V to 11V during the pulse. C = (current x pulse period) divided by the voltage change. So if the current needed is 100A and the the pulse period is 5 milliseconds and the capacitor voltage change is 1 volt, then C = (100A x .005 seconds) divided by 1 volt = 0.5 farads or 500,000uF. That's going to require a bank of 10 paralleled 15V, 50,000uF capacitors. You might as well get a 12V car battery. I think it might be cheaper. But I could be wrong about the max current required.
        Answered by Danno on 18/12/2020Helpful (0)
      • 0
        Q: Is it ok to use this product with a 12v 20ah gel car battery?
        A:
        It is ok, but please check whether the circuit is working. The unit, which I received is faulty. It never could work since there is a severe fault of the circuit design. I had to correct this with major effort.
        Answered by Volker on 14/12/2020Helpful (0)
      • 0
        Q: I just received it, I connected it all normally and as soon as I connected it to the battery, it took out the Diy, it took out smoke and it didn't work anymore, I think they are defective, that's why they sold them cheaper than others, I bought them and they gave me the kind of problem
        A:
        getwell soon
        Answered by ahmetgurkancoskun on 20/07/2022Helpful (0)
      • 0
        Q: can I use a 12v car battery?
        A:
        yes you can
        Answered by Pavel Ponomarenko on 23/03/2022Helpful (0)
      • 0
        Q: Will this work well with 0.15mm nickel plated steel strips? Or is it not powerful enough?
        A:
        This barely works with 0.10 Nickel. This product is much better for 0.15 strips.... Item # 1686661 I use it with a 4S Li-Po battery.
        Answered by JayBee on 26/07/2020Helpful (0)
      • 0
        Q: can I use my car battery? or a simple 2S or 3S 2200mAh 20C lipo battery work?
        A:
        I used my old car battery and it works perfectly
        Answered by maxime287 on 31/01/2022Helpful (0)
      • 0
        Q: Will this work with 3S 4500mAh 45C lipo battery?
        A:
        Yeah,that is OK.
        Answered by Oth_zenGeta on 16/04/2020Helpful (0)
      • 0
        Q: I have a constant 12V output in any mode, a beep but no welding... Any idea how to solve it?
        A:
        '-*1) ( 319) ' '5
        Answered by Lammih on 22/11/2021Helpful (0)
      • 0
        Q: Is it work on battery 4s 14.8volt 7500mAh 35C???
        A:
        No, definitely not! A fully charged 4S has a no-load voltage of 16.8V. Max for this is 14.6V. A 3S is what you want. As a matter of fact, mine blew the input diode when I plugged it into a 3S battery. I had to replace the diode to get it working. This board is not very robust but it does work for 0.1mm straps.
        Answered by jjmusto on 06/02/2021Helpful (0)
      • 0
        Q: instruction for this unit?
        A:
        Youcan check the description section.
        Answered by ahmetgurkancoskun on 28/12/2021Helpful (0)
      • 0
        Q: Can I use a Li-ion battery 4s 9p?
        A:
        Idon't know, I haven't tried
        Answered by ahmetgurkancoskun on 09/12/2021Helpful (0)
      • 0
        Q: can I use 12v from 100amh lead acid battery?
        A:
        yes
        Answered by BG183716441 on 23/11/2022Helpful (0)
      • 0
        Q: Are there any instructions?
        A:
        yes there is.
        Answered by Pavel Ponomarenko on 23/03/2022Helpful (0)
      • 0
        Q: In another site I have seen using it and sell it with a capacitor 35V 2200μF solder it on PCB Board. Why in this one don't use this capacitor? Thank you!
        A:
        It makes no difference. the welder is unable to weld the thinest nickel strip. Avoid this rediculous product.
        Answered by Jim on 24/02/2021Helpful (0)
      • 0
        Q: can it use a 12v 7.2ah battery?
        A:
        Works well
        Answered by Ahmad Mohammed on 07/09/2022Helpful (0)

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