3goa Handheld Spot Welding Board Review – Pros & Cons – 3goa Spot Welder Control Board

The 3goa Handheld Spot Welding Board is a remarkably versatile and powerful tool, serving as the heart of any DIY spot welding project. It is akin to a master conductor, orchestrating a symphony of power and precision to seamlessly fuse metal components. With its six-gear adjustable control, this board provides an unparalleled level of customization, allowing you to fine-tune the welding process for different materials and thicknesses. Consequently, whether you’re working with delicate nickel strips or more robust battery tabs, you can achieve a perfect, clean weld every time. Moreover, its wide current range of 100-900A ensures it can handle a broad spectrum of tasks, from small-scale repairs to assembling large battery packs. Therefore, this 3goa Handheld Spot Welding Board is not just a circuit board; it is a gateway to a world of creative possibilities, empowering hobbyists and professionals alike to build and repair with confidence and skill.

Furthermore, the portable and mini design of this control board kit makes it an ideal companion for on-the-go projects, and it’s as light as a feather, yet as strong as an ox. Its compact size belies its immense power, enabling you to transform a simple battery into a formidable energy source. Likewise, its DIY nature encourages exploration and learning, and it arrives as a blank canvas, awaiting your artistic touch. In fact, assembling the kit is an educational journey in itself, teaching you the fundamental principles of electronics and welding. As a result, you will gain a deeper understanding of how each component works in harmony to achieve a flawless weld. Ultimately, this 3goa Handheld Spot Welding Board is a testament to the fact that great things often come in small packages.

In conclusion, this spot welder PCB circuit board is an essential piece of equipment for anyone serious about battery assembly or repair. It acts as the brain of your spot welder, and it commands the current with unerring accuracy. Initially, you may be intimidated by its technical specifications, but once you begin to use it, you’ll discover its intuitive nature and ease of operation. Subsequently, you’ll find yourself effortlessly tackling projects that once seemed impossible. So, while other tools may simply get the job done, this 3goa Handheld Spot Welding Board elevates your craft, transforming mundane tasks into works of precision engineering. It is a tool that not only performs a function but also inspires innovation.

FEATURES:
– 6 gear adjustable power
– Supports 100-900A current
– Control board kit for DIY
– Portable, handheld design
– Can weld 18650 batteries
– Can weld 26650 batteries
– Miniature size
– PCB circuit board
– For lithium batteries
– Spot welding machine

The 3goa Spot Welder Control Board is a portable, miniature, and handheld DIY kit for spot welding. It features a 6-gear adjustable power setting, allowing it to support welding currents from 100-900A. This PCB circuit board is specifically designed for spot welding lithium batteries, including common sizes like 18650 and 26650. The kit’s design emphasizes convenience and portability, making it a great option for small-scale projects.

PROS:
– Consistent welds
– Welds on a variety of materials
– Handles everything tried
– Fantastic little device
– Works great
– Good value spot welder
– Very serviceable
– Works fantastic
– Works just as you’d want
– Consistently welds well
– Consistent welds

CONS:
– Manual is trash
– Dangerous- caught fire
– Cables start to heat up
– Delay could be a little longer
– No case is included
– Instructions are unintelligible

The 3goa Spot Welder Control Board is a highly-rated, serviceable, and portable mini handheld welder that consistently produces good quality welds on various materials, including 18650 and 26650 lithium batteries. Users praise its performance, versatility, and value, describing it as a “fantastic little device” that “works just as you’d want.” However, potential buyers should be aware of a few significant drawbacks, including a dangerous potential to catch fire and cables that can overheat, along with unintelligible and poorly written instructions. Some users also noted that a case is not included and wished for a slightly longer delay setting. Read more…

Kit Contents for a Lithium Battery Welder

Kit Contents for a Lithium Battery Welder

This image shows the various components included in a 3goa Adjustable Lithium Battery Welder kit. The kit contains an intelligent motherboard, which is the main circuit board. It also has two spot welding pens with a 38cm cable. Two connecting wires are included to link the power source. Other accessories are four sets of screws, two heat shrinkable sleeves, and a 2-meter long nickel sheet.


A guide to using the 3goa 100-900A Spot Welder Kit for battery welding

A guide to using the 3goa 100-900A Spot Welder Kit for battery welding

This image shows how the 3goa 100-900A Spot Welder Kit works. It demonstrates the process of welding nickel sheets to lithium batteries. The spot welder can handle nickel sheets that are 0.1 to 0.3 mm thick. The images show single batteries and multiple batteries being joined together. The kit helps you connect batteries efficiently and securely. This saves time and effort during assembly.


3goa Spot Welder Control Board Connection Diagram

3goa Spot Welder Control Board Connection Diagram

This image shows how to connect the 3goa Spot Welder Control Board. It displays the connections between the control board and a power source, like a battery. The anode and cathode of the board are connected to the positive and negative terminals of the battery. The image also shows the connection points for the black and red welding pens. The red welding pen connects to the positive side of the battery. The diagram is a visual guide for the product’s setup.


Circuit Board with Explanations

Circuit Board with Explanations

This image shows a circuit board with various features labeled to explain its function. The text describes the board’s key attributes, including intelligent control, a built-in warning protection mechanism, and an excellent solder joint. It also mentions different “gears” for power and capacity, along with warnings for low and excessive power. The circuit board is a component of an unknown product.


Compact Spot Welding Board

Compact Spot Welding Board

This image shows a green circuit board. It is a handheld spot welding board. The product name is 3goa JQ-DHJ02B. It has two thick cables. The cables are black and red. The board has a row of small indicator lights. The board also has several electronic components. There are some Chinese characters on the board. A numeric date code is visible: 210413. This date code is likely April 13, 2021.



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Best 3goa Handheld Spot Welding Board Deals

Hosyond 8000W Handheld Battery Spot Welder, Portable DIY Welding Machine, High-Power Spot Welder with Nickel Strip for 18650 Lithium Batteries

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Key Features

  • ✅ 🔥 Powerful 8000W Spot Welding for Superior Performance Experience exceptional welding efficiency with this high-power 8000W spot welder! Equipped with pure copper welding needles, it ensures strong, smooth, and precise welds, perfect for battery packs, nickel strips, and other DIY projects. The detachable design allows for easy replacement, extending the machine’s lifespan.
  • ✅ 🔋 Built-in High-Capacity Lithium Battery – Weld Anywhere! No need for external power sources! Our spot welder features a high-rate lithium battery, enabling you to weld on the go. Whether you’re in the workshop, garage, or outdoors, enjoy unmatched portability and convenience.
  • ✅ 📟 Smart Digital Display – Real-Time Power Monitoring Stay in control with the high-definition digital screen, which accurately displays battery levels. No more unexpected power shortages—always know your remaining charge at a glance, ensuring a seamless welding experience.
  • ✅ ⚡ Adjustable Output Current & Dual Welding Modes Tailor your welding power with the 1-9 level adjustment knob, allowing precise control over the output current to suit different materials and thicknesses. Choose between manual or automatic welding modes for ultimate flexibility—whether you prefer precision control or hands-free operation, this welder adapts to your needs.
  • ✅ 💡 Rechargeable & Energy Efficient – Low Standby Power Consumption Designed for long-term use, this spot welder supports fast recharging, so you’re always ready for your next project. Plus, with its low power consumption when turned off, you can conserve battery life without worrying about unnecessary drain.

Product Details

Brand:Hosyond
Model:H-071
Size:8000W

SEESII Battery Spot Welder: Handheld Spot Welding Machine with Rechargeable Battery, Mini Battery Welder for Nickel-Plated Sheets up to 0.2mm - for Battery Pack Assembly and Repair

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Key Features

  • ✅ 【Wireless, Portable Design】Built-in 2000mAh rechargeable battery supports cordless operation and easy portability, eliminating cable constraints and enabling flexible use anytime, anywhere
  • ✅ 【Visual Display Screen】Real-time voltage, gear settings and welding mode are clearly displayed, simplifying operation steps and ensuring accurate adjustments for stable welding effects
  • ✅ 【80 Adjustable Gears】Realizes refined welding power regulation, perfectly adapting to nickel sheets of different thicknesses with a maximum welding thickness of 0.2mm for nickel-plated sheets and 0.15mm for pure nickel sheets, meeting diverse welding requirements
  • ✅ 【Reusable Cleaning File】Equipped with a reusable file to remove carbon deposits on the welding tip, maintaining stable welding performance and extending the tip's service life
  • ✅ 【Durable Aluminum Shell】Boasts a sturdy aluminum shell that enhances texture and durability, resisting wear and tear for long-term reliable use

Product Details

Brand:Seesii
Model:SE209
Color:Black
Dimensions:9.8031495963 X 2.2047244072 X 0.9055118101 inches

Spot Welder Control Board, High Output Battery Spot Welder, Battery Welder PCB Circuit Board 6 Gear Adjustable, Spot Welder for Lithium Batteries, Control Board Kit Spot Welder 100-900A (‎02B-DLB)

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Key Features

  • ✅ Safe to use: The spot welding board requires a self-contained power supply. You can use your own bike battery or other batteries to connect to our circuit board. The battery spot welding machine has a powerful output power, with 6 adjustable gears, and can weld materials of 0.02mm or even 0.03mm. Welding is more accurate, and thousands of points can be continuously welded onto nickel plates.
  • ✅ Widely used: Spot welding plates can be used for spot welding of lithium cylindrical batteries and nickel hydrogen batteries such as 14650, 17490, 18650, 21700, 26650, and 32650. You can also repair electronic devices with batteries, such as handheld drills, electric toy cars, electric toothbrushes, electric facial washers, and so on, saving you a lot of expenses.
  • ✅ Power selection: Spot Welding Machine Lithium Battery Control Board needs its own power supply, supporting 6.5V-16V power supply, battery discharge current <900A, short circuit current <1800A, beyond the above range may damage the control board.
  • ✅ Safe use: After connecting to the power supply, it will intelligently match and determine whether the power supply can work to prevent damage to the circuit board. The operation is simple. There is a multiplier and battery capacity to choose from. It can be determined whether the battery is low-power or high-power.
  • ✅ Rich accessories: We have equipped the power supply positive and negative poles with connecting wires, screws, spot welding pens, 2-meter nickel plated plates. You can practice more on discarded batteries, familiarize yourself with the power level of each gear, and then operate your equipment in practice. This is to prevent damage to your battery. The accessories are complete, and after receiving the goods, you only need the power to operate immediately.

Product Details

Brand:Kerpu
Model:‎02B-DLB

KEKK Spot Welder Machine 12V 90-180A Spot Welding Control Board Kit Portable Mini Welding for DIY 18650 Lithium Battery

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Key Features

  • ✅ 10 MOSFET tubes in parallel, five on the top and five on the back
  • ✅ Spot welding adopts the welding principle of high-current localized rapid heating and cooling, which requires sufficient current, users need to provide their own 12V lead-acid batteries, with a discharge current of about 90A~180A, which can easily spot weld 0.1mm~0.15mm nickel-plated sheets. Please make sure your battery can have more than 90A current, otherwise you will not be able to weld! The higher the discharge current, the thicker the thickness of spot welding.
  • ✅ Advice for you: lead-acid battery(Discharge current 90-180A) Use old power type lead-acid battery 12V20AH--100AH.Or use new power type lead-acid battery 12V20AH-45AH. Note: If you use 20AH old lead-acid battery, it must not exceed one year, otherwise it will not be able to spot welding.
  • ✅ Spot welding thickness reference: 0.1-0.15mm nickel-plated plate
  • ✅ For DIY 14650, 17490, 18650, 21700, 26650, 32650 and other cylindricallithium batteries

Product Details

Brand:KEKK
Model:K1

Hosyond Handheld Battery Spot Welder, Automatic and Manual Modes Battery Welder for 18650 Battery

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Key Features

  • ✅ NO Spot Welding Pen------No need for a spot welding pen when going out or at home, handheld spot welder that does not require additional spot welding pens, carry it with you and it's convenient to go anywhere. It combines the built-in power supply and welding pen into one, making it easy to weld without the need for an external welding pen.
  • ✅ Widely Used - Suitable for cylindrical batteries such as 18650/26650/36650, mobile phone batteries, and electronic devices that require batteries. Spot welder can be used for electronic devices that have been damaged due to battery damage, replacing the battery and resuming use (similar to handheld electric drills), saving money and protecting the environment.
  • ✅ Easy to Use - ONLY 2 buttons, our spot welder the buttons are labeled,easy to use. The battery spot welder does not need to leave our palm. Press and hold the power switch button on the side for 2 seconds with your middle finger, press the gear adjustment button on the top with your index finger once, and press and hold for 2 seconds to adjust the automatic or manual mode.
  • ✅ Multiple Protection Measures - It is a mini handheld spot welding machine, but it has high-quality polymer cells, overcharge protection, temperature protection, short circuit protection, abnormal battery temperature alarm and off spot welding function, and low cell voltage alarm. Ultra low power consumption, longer standby time.
  • ✅ Exquisite Packaging - Our packaging includes a handheld spot welder, 2-meter nickel plated sheet, 1 piece of frosted paper, 1 Type-c charging cable, and a manual. Our packaging is very exquisite, making it a very worthwhile gift for your loved one who loves battery DIY and friends.

Product Details

Brand:Hosyond
Model:757

VLOXO Battery Spot Welder, Battery Welder 99 Gear Adjustable Handheld Spot Welder with LCD Screen Automatic and Manual Modes Portable Spot Welding Machine for Welding Nickel Strips and Iron

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Key Features

  • ✅ Integrated Design: VLOXO battery spot welder power supply and welding pen are combined into one, you can weld easily without an external welding pen. The mini welder is designed for one-handed operation. freeing your other hand to hold the nickel strip, making welding a breeze.This cordless spot welder is only suitable for small battery nickel sheets.
  • ✅ LCD Digital Display: The Spot Welder comes with a digital display , and its functions include mode selection, gear setting, preheating time, and delay display. Click the SET button to trigger the settings of language, sleep time, screen brightness, etc
  • ✅ Dual Modes and 99 Adjustable Gears: The handheld spot welder adopts allow you to freely choose the output power to meet your spot welding needs; the design of automatic and manual modes increases the flexibility of spot welding, dual pulse output, and more precise welding.Switch between modes effortlessly for seamless welding experiences
  • ✅ Multifunctional Spot Welder: VLOXO portable spot welder is very suitable for welding electronic devices that fail due to battery damage and various types of batteries, such as cylindrical batteries, button batteries etc. And support welding nickel-plated sheets, stainless iron sheets or stainless steel sheets, and the solder joints are firm and beautiful
  • ✅ Safety and Reliable: Professional Spot Welding Machine adopts a multi-protection design and has an intelligent temperature detection system built in. When the device temperature is detected to be higher than 65 degrees, the device will automatically power off and stop spot welding, making your spot welding more secure

Product Details

Brand:VLOXO
Model:Docreate-757
Color:Black
Dimensions:7.72 X 1.61 X 0.98 inches

Hoteche Portable Spot Welder Single Phase Spot Welding Machine with Durable Components

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Key Features

  • ✅ 【High-Powered Performance】The Hoteche Portable Spot Welder features a powerful 8KW input capacity and 2.5V no-load voltage, providing excellent spot welding for a variety of materials. Perfect for DIY projects and professional welding needs
  • ✅ 【Efficient Spot Welding Capacity】Capable of welding materials with a thickness of 1.2mm+1.2mm, this spot welding machine is ideal for sheet metal welding and automotive repair, delivering clean and strong welds with minimal effort
  • ✅ 【Compact and Portable Design】Designed for maximum convenience, this portable spot welder comes with an American plug and 110-120V rated input voltage, making it easy to use anywhere in your workshop or on-the-go, without compromising on performance
  • ✅ 【Consistent Performance】With a 50% duty cycle, the Hoteche Portable Spot Welder ensures efficient operation for long periods, perfect for tackling larger projects or repeated spot welds without overheating
  • ✅ 【Versatile and Reliable Spot Welding】This spot welding equipment is designed for both light industrial and home use, offering precise and reliable results for a variety of applications, including metal fabrication, electronics repair, and auto body welding

Product Details

Brand:Hoteche
Model:P814100A
Color:Grey

Havcybin Welding Machine Pen DIY Portable12V Battery Storage Spot Welder Pen PCB Circuit Board Welding Current for 18650/26650

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Key Features

  • ✅ It is recommended to install the product by the people who have basic electrical knowledge and hands-on ability.
  • ✅ For power input, users need to supply 12V battery power, welding current is about 90A~150A.
  • ✅ Portable DIY 12V Battery Energy Storage Spot Welder Machine for electronic enthusiasts.
  • ✅ System voltage: 12V-14.6V (capacity X rate = must be greater than 150A).
  • ✅ High-Quality. Portable,stable, reliable and durable.

Product Details

Brand:havcybin
Model:spotwelder

Battery Spot Welder with LCD Screen, 5000mah Handheld Spot Welder, Spot Welder for Lithium Batteries, Double Pulse Spot Welding 0.1mm-0.25mm for Iron, Stainless Steel, Nickel Strip, 18650 Battery Pack

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Key Features

  • ✅ ⚡ Dual-Pulse Welding Technology: Our advanced dual-pulse system releases two pulses during operation: the first removes oxidation for cleaner contact and reduces sparks, while the second delivers consistent energy for stronger, more stable welds. This innovative design ensures minimal splash and maximum welding precision
  • ✅ 📏 Adjustable Power Settings: Fine-tune your output with multiple adjustable levels to suit materials ranging from 0.1mm to 0.25mm. Compatible with nickel, iron, stainless steel, and aluminum strips, this spot welder is perfect for battery pack assembly, metal repairs, and more
  • ✅ 🔋 High-Capacity A-Grade Batteries: Equipped with 5000mAh A-grade batteries, this spot welder delivers thousands of welds on a single charge. It also doubles as a portable power bank, offering versatile utility for your workshop or on-the-go use
  • ✅ 🔧 Durable Brass Welding Pen: The included welding pen features a replaceable brass tip, meaning if the head wears out, you only replace the tip—not the whole pen. Brass construction ensures excellent conductivity, heat resistance, and long-lasting durability
  • ✅ 🖥️ Smart 1.8” Color LCD Display: Stay in control with the intuitive full-color LCD screen, showing real-time data including battery voltage, device temperature, preheat time, pulse duration, interval timing, charging status, and built-in warnings for over-temperature, low voltage, and short-circuit protection

Product Details

Brand:Docreate
Model:Spot Welder

SEESII Battery Spot Welder: Cordless Spot Welding Equipment, LCD Display, 10-90 Adjustable Gears, Foot Pedal Control, for Battery Packs DIY & Repair

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Key Features

  • ✅ Built-in Rechargeable Battery​: No more tangled power cords! Grab this spot welder and work anytime, anywhere; Note: For optimal performance, fully charge it to 100% before first use
  • ✅ Upgraded 0.1-0.25mm Battery Spot Welder: Dual pulse + pedal control for effortless welding of 0.1-0.25mm nickel plates; Perfect for batteries, hardware & electronic components
  • ✅ LCD Display: Real-time battery voltage readout—key for great welding! Easily check levels and recharge (Please charge when below 7.3V)
  • ✅ Easy to Operate: Compact & lightweight (saves home space)—easy to take anywhere; Press the foot switch: red light flashes 3x fast, one power output = welding done!
  • ✅ Beginner-Friendly Tips: 1. Charge fully upon receipt, then practice multiple times to find the right welding strength; 2. Do not touch the two-pin clamp during use—risk of internal fuse explosion and equipment damage

Product Details

Brand:Seesii
Model:SE-402
Color:Black
Dimensions:1 X 1 X 1 Inches
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