10 Best Battery Spot Welder of 2021 – Reviews By An Expert!

Top 10 Best Battery Spot Welder: Editor Recommended

The 10 Best Battery Spot Welder Review:

1. Portable DIY Mini Spot Welder Machine

Portable DIY Mini Spot Welder Machine

The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality. Using automatic touch welding mode, while retaining the manual trigger interface, you can choose according to your own use.

Wide selection of welding power supply: lithium battery power supply or 12V car battery. The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality.

With LCD display screen, can display welding parameters. The controller comes with a 20cm long 10AWG input wire. One end has been crimped with a U-shaped terminal, and the other end has not been processed.

Connect the crimped U-shaped terminal to the control power input terminal, and the other end is processed according to its own power supply.

Do not connect the negative electrode wrong. Keep the welding pin clean. If the welding pin is polished into a round head, the welding effect can be improved. There are manual and automatic methods.

Highlighted Features:

  • The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality.
  • Using automatic touch welding mode, while retaining the manual trigger interface, you can choose according to your own use.
  • Wide selection of welding power supply: lithium battery power supply or 12V car battery.
  • lithium battery power supply or 12V car battery.
  • The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality. With LCD display screen, can display welding parameters.

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2. Handheld DIY Spot Welding Tool

Handheld DIY Spot Welding Tool

Aluminum alloy shell material, fire-proof and anti-fall; Surface anodizing technology, anti-abrasive and safe to use. Portable Spot Welding Machine is mainly used in the welding of nickel sheet of cylindrical battery like 18650.

Built-in high-rate polymer power cell, the maximum output current is up to 639A, and it can continuously weld thousands of points after being fully charged.

With output power and remaining power indication, there are two output modes: timing trigger output and automatic trigger output. At the same time can set 4 output power.

Has four dual-color indicator lights, Green light for indicating the power, red light for indicating the welding power. Charging indicator light: red for charging, green for fully charged. It will automatically shut-down after ten minutes of no use.

Highlighted Features:

  • Portable Spot Welding Machine is mainly used in the welding of nickel sheet of cylindrical battery like 1-8650,Aluminum alloy shell material, fire-proof and anti-fall
  • Self-carried with a charging control module, which charges the battery through the USB port. Equipped with charging indicating lamp, red while charging and green for fully charged. You can have a try.
  • Handheld Welding Machine is precisely controlled by the single-chip microcomputer program without trigger the switch. Free your hands or foot pedals completely.
  • This spot-welder can welding hundreds of welding points on commonly used nickel-plated sheets within 0.1mm-0.15mm if fully charged.
  • Package Includes:1Pc x Spot Welding Machine 1Pc x 4m Nickel Sheet 2Pcs x Welding Pen 1Pc x Charging Cable 1Pc x User Manual

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3. GoolRC DIY Portable 12V Battery Energy Storage Spot Welding Machine Pen PCB Circuit Board

Energy Storage Spot Welding Machine

This circuit will become a storage spot welding machine for lithium battery, nickel-chromium battery and other nickel sheet welding, according to different configurations can be welded thickness of 0.1MM-0.12mm.

Highlighted Features:

  • Users need to supply 12V battery power, welding current is about 90A~130A.
  • DIY Portable 12V Battery Energy Storage Spot Welder Machine for electronic enthusiasts.
  • System voltage: 12V-14.6V (capacity X rate = must be greater than 150A).
  • It is recommend to install the product by the people who have basic electrical knowledge and hands-on ability.
  • New and high-quality. Portable & stable, reliable and durable.

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4. SUNKKO 737G+ Battery Spot Welder

SUNKKO 737G+ Battery Spot Welder

SUNKKO 737G+ is a big improvement on the basis of 737G. It is specifically designed for battery welding (18650, 14500 and any other lithium batteries, etc).

It can be used to weld nickel strips with thickness between 0.05 and 0.35 mm for nickel plated steel or between 0.05 and 0.25 mm for pure nickel strip. When the foot pedal is plugged in, it’s in MT mode, otherwise, it’s in AT mode.

In all the preparation steps mentioned below, please make sure that the copper welding rods of the fixed head and the welding pins of the mobile welding pen are not in contact with each other to avoid short circuit.

\When users need to adjust the distance between welding pins on mobile welding pen or distance between copper welding rods of fixed head, please turn off the welder first, do not adjust the distance when the welder is on.)

Highlighted Features:

  • New panel design with intelligent welding function (only for welding pen), improve the efficiency of battery pack welding process;
  • Built-in temperature sensor, intelligent cooling system can automatically work according to machine’s internal temperature;
  • Broad welding thickness range: 0.03 – 0.3 mm for fixed copper head; 0.03 – 0.2 mm for mobile welding pen, the welding thickness of pure nickel is between 0.03 and 0.15 mm;
  • Various welding methods optional, no welding limitation of battery pack’s size;
  • Soldering function: the temperature of solder can be heat up to 300°C within 7 8 seconds, it’s really efficient;

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5. KKmoon 5000W Battery Spot Welder

KKmoon 5000W Battery Spot Welder

Battery welding machine is specifically designed for 18650 battery welding and it also can be used to weld nickel strips with thickness of 0.2MM. Come with welding pen with good conductivity and low contact resistance.

Presumably, there would not be enough power to adequately bond material more than 0.2mm. Material thinner should be OK so long as you control the time.

Power used one way to use with thinner material might be to use larger diameter tips, which should spread the heat over a larger area and thus avoid burning through the material.

Highlighted Features:

  • Battery welding machine is specifically designed for 18650 battery welding and it also can be used to weld nickel strips with thickness of 0.2MM.
  • Come with welding pen with good conductivity and low contact resistance.
  • 5000W High power spot welding machine, good performance and long service life.
  • ABS shell material, surface anodizing technology, anti-abrasive and safe to use.
  • Compact and portable size design can easy to carry with you.
  • There are 110V and 220V machine versions to choose from.

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6. Welding Pen Portable DIY Mini Spot Welder Machine

Mini Spot Welder Machine

This product uses two ultra-high rate model airplane lithium batteries, the discharge peak value can reach 630A+, all high-current circuit layouts, use infrared thermal imaging to optimize the design, and better share the discharge current.

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Long press to turn on/off, short press to cycle to switch 5 gears, all operations can be quickly and conveniently performed, when it is off, it can be standby for up to one year due to low power efficiency.

The welding machine uses a single chip to precisely control the output current of the MOS tube, and generates a high temperature of more than 2000 degrees at the welding point to make the nickel sheet weld firmly.

The welding machine itself has overcurrent protection, low voltage protection, overvoltage protection, and overtemperature protection. And other functions. Intelligent output current. Can guarantee safe use.

Charging to 4.2V can prevent battery expansion. When the power lithium battery is working, the protection strategy of the lithium battery lower than 3.2V 5.5AH is adopted to give low-voltage space and security.

Highlighted Features:

  • Automatic trigger
  • Detachable soldering pen
  • TYPE-C charging
  • Short circuit protection
  • Brass welding ratio

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7. Handhold YaeCCC 737G Battery Spot Welder

Handhold YaeCCC 737G Battery Spot Welder

The Handhold YaeCCC 737G is equipped with dual pulse mode selection and 0 ~ 99 level current setting, which can allow the machine to weld nickel strip within 0.05 ~ 0.2 mm thickness, making the spot more reliable.

The combination of fixed welding head and foot switch will meet users’ different requirements. This spot welding device is suitable for most small battery packs welding.

Highlighted Features:

  • Use micro chip for controlling precision current to weld in precision.
  • There are wide range of selecting current(1/2 pulse) can be selected to make your work more convenient,safe and efficient.
  • Controlled by micro computer.
  • Welding power can be set and displayed on Led panel.
  • It is suitable for welding charging battery pack, button cell leads, hardware to process, etc.

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8. 18650 Battery Various Welding Power Supplies

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The 18650 Battery Various Welding Power Supplies is 100% brand new and high quality. The controller is mainly for welding nickel-plated steel strips from 0.1mm to 0.12mm.

A 25V10000uF high-frequency low-resistance capacitor is added to the power input for energy compensation, which increases welding stability. Spot Welding Machine Set only,other accessories demo in the picture is not included.

The controller comes with a 20cm long 10AWG input wire. One end has been crimped with a U-shaped terminal, and the other end has not been processed.

Connect the crimped U-shaped terminal to the control power input terminal, and the other end is processed according to its own power supply. Do not connect the negative electrode wrong.

There is a power switch under the control board. After pressing, wait for 3 seconds. After the buzzer drops, the LCD lights up and the boot is complete. Press the power switch again to shut down. Screen description and parameter adjustment.

Keep the welding pin clean. If the welding pin is polished into a round head, the welding effect can be improved. There are manual and automatic methods.

Highlighted Features:

  • Wide selection of welding power supply: lithium battery power supply or 12V car battery.The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality.
  • With LCD display screen, can display welding parameters.The welding pen and the input line are connected by U-shaped cold-pressed terminals, which is convenient for disassembly and replacement.
  • Using automatic touch welding mode, while retaining the manual trigger interface, you can choose according to your own use.The power board uses 2 Gusi copper to increase the overcurrent capacity.
  • using 5 300A MOS tubes, non-disassembled MOS tubes.The MOS tube driver adopts the imported special chip driver. The fastest MOS tube can be hit with 20nS. The switch is fast to prevent the explosion of the tube and the non-triode push-pull drive.
  • The MOS drive design adds a transient diode to protect the MOS and prevent the explosion of the tube.10AWG multi-filament flexible wire is used for the welding pen line and the input line to increase the overcurrent capacity.The controller is mainly for welding nickel-plated steel strips from 0.1mm to 0.12mm.

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9. Seesii 1S Portable DIY Spot Welding Machine

Seesii 1S Portable DIY Spot Welding Machine

The portable Spot Welder with 4 gears adjustable is made of aluminum alloy material, with anodic oxidation surface, wear resistant and beautiful, fire-proof and anti-fall.

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With Gold-plate terminal welding pen, fine conductivity and low contact resistance, quickly detachment and easy carring. This DIY spot welding machine is mainly used in the welding of nickel sheet of cylindrical battery, NI-MH battery, nickel cadmium battery like 18650.

Seesii Mini Spot Welding Tool with quick release pen 18650 battery plate spot welding with comfortable hand feelings, can support long time use, stable and reliable, wear resistant and effort saving.

Highlighted Features:

  • This adjustable spot welding tool is made of aluminum alloy material, with anodic oxidation surface, wear resistant and beautiful, fire-proof and anti-fall. 2mm thicken pure copper strip, supper low internal resistance to increase overcurrent capability. Single MOS tube can provides 300A continuous current and 1200A designed current.
  • This spot welding equipment adopts micro-USB interface, compatible with phone interface, 4 hours fully charge under 5V 1A input. Built-in high-rate polymer power cell, the maximum output current is up to 639A, and it can continuously weld thousands of points after being fully charged. 4 gears of output power adjustable, 1gear(lowest) and 4gear(highest).
  • With output power and remaining power indication, there are two output modes: 1.5s timing trigger output and automatic detect welding pen output. —This spot welding kits tools has 4 dual-color indicator lights, green light for indicating the remaining quantity of electricity, red light for indicating the output power.—Charging indicator light: red for charging, green for fully charged.
  • Gold-plate terminal welding pen, with fine conductivity and low contact resistance, quickly detachment and easy carring.Compact size and light weight, easy and convenient to carry.
  • This DIY spot welding machine is mainly used in the welding of nickel sheet of cylindrical battery, NI-MH battery, nickel cadmium battery like 18650.The best service to our customers is our aim, if you have any questions about our item, please feel free to contact our customer service, we will do our best to solve the problem for you.

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10. KKmoon Integrated Type Spot Welding Pen

KKmoon Integrated Type Spot Welding Pen

KKmoon Integrated Type Spot Welding Pen Automatic Trigger Weld Machine Accessory for 18650 Battery. This is a kind of fine quality spot welding pen, adopt thick copper bar, help enhance the working efficiency, and suitable for long service time.

Integrated design, beautiful and neat, with fine heat radiation effect. There are dual springs on the handle, each welding pen can expand and contract independently. Built-in limit switch, one hand operation, do not need foot pedal. You can have a try.

Highlighted Features:

  • Adopt thick copper bar, help enhance the working efficiency, and suitable for long service time.
  • Integrated design, beautiful and neat, with fine heat radiation effect.
  • There are dual springs on the handle, each welding pen can expand and contract independently.
  • Built-in limit switch, one hand operation, do not need foot pedal.
  • With comfortable hand feelings, can support long time use, stable and reliable, wear resistant and effort saving.

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