10 Best Battery Spot Welder of 2022 – Review and Buying Guide

One of the most popular welding methods used when working on circuits is spot weld. When attaching batteries to a circuit, it isn’t the same as most other types of connections. This necessitates the use of specialized equipment, such as battery spot welders, which are available here.

In order to make welding connections with small batteries, your spot welds will have to be extremely thin in both size and thickness. For the most part, this falls within a reasonable tolerance for most people, falling anywhere between 0.05 mm and 0.2 mm.

A powerful battery spot welder is essential for correctly welding and making electrical connections with a battery. Because most battery spot welders have a range of 50A to 800A, they are ideal for welding battery connections.

The controls of your battery spot welder are just as crucial as the controls of any other welding machine. There are numerous dials, screens and foot paddle options to look at before making a final decision on a device of this type.

Top 10 Battery Spot Welder: Editor Recommended

When it comes to finding the right battery spot welder for your needs, keeping these things in mind can be a huge help. It’s also a good idea to check out the features and specs as well as the “Buying Guide” below for battery spot welders if you want to make an informed decision.

The 10 Best Battery Spot Welder Reviews:

Mini Spot Welding Machine, 9 Gears Adjustable Portable DIY Spot Welder with Quick Release Pen 18650 Battery Plate Spot Welding,Mini Spot Weld Machine with Nickel Sheet and Charging Cable

1. Mini Spot Welding Machine, 9 Gears Adjustable Portable DIY Spot Welder

Features :

  • ✅【High Quality & Multifunctional】: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 Thickened pure copper strip and imported MOS tube can save energy and can provides longger service time. The welding machine itself has overcurrent protection, low voltage protection, overvoltage protection, and overtemperature protection. Intelligent output current. Can guarantee safe use.
  • ✅【Quick Input & 9 Gears Adjustable】:This spot welding equipment adopts Type-c interface, 4 hours fully charge under 5V 1A input. Built-in high-rate polymer power cell, the maximum output current is up to 650A, and it can continuously weld thousands of points after being fully charged. 9 gears of output power adjustable, 1gear(lowest) and 9gear(highest).
  • ✅【With Charging Control Module & Indicator Light】: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, the power indicator flashes when charging.When all four lights are on, it is fully charged.It will automatically shut-down after 15 minutes of no use.
  • ✅【With Welding Pen & Portable Design】:Integrated Gold-plate terminal welding pen, with fine conductivity and low contact resistance, quickly detachment.The compact and portable size design is also very easy to carry.
  • ✅【Wide Application & WARRANTY】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.

Additional Info :

Color 9 Gears
Mini Spot Welder Pen for 18650 Battery,9 Gears Adjustable Portable DIY Spot Welding Machine,Handheld Mini Spot Weld Kits with Quick Release Welding Pen,Nickel Sheet and Charging Cable

2. Mini Spot Welder Pen for 18650 Battery

Features :

  • 【High quality and Durable Material】:The spot welding tool is made of aluminum alloy material, with anodic oxidation surface, wear resistant and beautiful, fire-proof and anti-fall. 2mm Thickened pure copper strip and imported MOS tube can save energy and can provides longger service time. The welding machine itself has overcurrent protection, low voltage protection, overvoltage protection, and overtemperature protection. Intelligent output current. Can guarantee safe use.
  • 【Quick Input with 9 Gears Adjustable】:This spot welding equipment adopts USB-C interface, 4 hours fully charge under 5V 1A input. Built-in high-rate polymer power cell, the maximum output current is up to 650A, and it can continuously weld thousands of points after being fully charged. 9 gears of output power adjustable, 1gear(lowest) and 9gear(highest).
  • 【With Charging Control Module & Indicator Light】: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, the power indicator flashes when charging.When all four lights are on, it is fully charged.It will automatically shut-down after 15 minutes of no use.
  • 【Portable and Easy to Operate】-Our battery spot welder is very simple to operate and provides very good spot welds.Super portable,no need to find a power supply as the built in battery provides superior power,unit can be used while charging also to prevent battery depletion at desk or work bench.
  • 【Wide Applications】-This spot welding machine is with gold-plate terminal quick release welding pen,fine conductivity and low contact resistance,quickly detachment and easy to carry.This 18650 spot welder welding machine is mainly used in the welding of nickel sheet of cylindrical battery,NI-MH battery,nickel cadmium battery like 18650.

Additional Info :

Color As Shown,Black
Item Dimensions
Height 1.968503935 Inches
Width 4.330708657 Inches
Length 5.511811018 Inches
Weight 1.0141264052 Pounds
SUNKKO 737G+ Battery Spot Welder, Pulse Welding Machine for 18650 14500 Lithium Batteries Battery Pack Work With Nickel Strips 0.35mm,110V

3. SUNKKO 737G+ Battery Spot Welder

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;

Additional Info :

Item Dimensions
Height 7.87401574 Inches
Width 9.842519675 Inches
Length 5.511811018 Inches
SUNKKO 737DH Battery Spot Welder, Pulse Welding Machine for 18650 14500 Lithium Batteries Battery Pack Work With Nickel Strips 0.35mm Intelligent Time Delay Function,110V

4. SUNKKO 737DH Battery Spot Welder

Features :

  • THE PERFECT CHOICE: Whether you deal with electronic device maintenance, you work with factory assembly lines, battery production, technical school training, this SUNKKO spot welder provides rapid and accurate welding results!
  • LED DISPLAY PANEL: This SUNKKO battery spot welding machine features a state of the art LED display panel showing the actual welding current value display as well as current pulses setting, for a safe user experience.
  • TWO WELDING MODES: Choose from dual welding modes, automatic and foot pedal switch and enjoy the user-friendly foot control interface which is highly practical and easy to maneuver.
  • INTELLIGENT DELAY FUNCTION: Unlike similar products on the market, this SUNKKO spot welder features an intelligent time delay function on the AT mode, with 0.4, 0.5 and 0.6 optional settings and superposition up to 1.5 seconds.
  • REMOVABLE PULSE WELDING PEN: This SUNKKO battery spot welder includes a removable pulse welding pen with a 16mm2 cable area and a pin size of 1.5x7mm. Perfect for DIY projects, hobby and craft enthusiasts.

Additional Info :

Upgraded Mini Spot Welder with LCD Screen & Bulti-in 10600mAh Big Battery, 20 Gears Adjustable DIY Portable Handheld Spot Welding Machine for 18650 Battery, with Spot Welding Pen & Nickel Sheet

5. Upgraded Mini Spot Welder with LCD Screen & Bulti-in 10600mAh Big Battery

Features :

  • 【 Ideal for 18650 Battery Spot Welding】: With fine workmanship, stable performance and long service life features, this spot welder machine is perfect for the welding of nickel sheet of 18650 battery, cylindrical battery, NI-MH battery, nickel cadmium battery etc. also, it can be used to weld iron, steel, stainless steel sheets with the thickness less than 0.3mm to other iron, steel, stainless steel materials. Great tools for you.
  • 【Special LCD Screen Design】: Our spot welding machine is newly designed with visible LCD Screen, easily check the delay seconds and gears, also, the output, input voltage and remaining battery can be check. you can use it more convenience and safety.
  • 【10600mAh Big Battery Design】: This rechargeable spot welder with a mini portable size but a 10600mAh large capacity battery design, can be fully charged within 3 hours, no need to charge frequently, can keep a longer spot welding working time than others. What’s more, this mini spot welder can used as a power bank when you need to charge your phone.
  • 【20 Gears Adjustable 】 This DIY spot welder with 20 gears adjustable, easy to operation. and support to welding material thickness with-in 0.1mm-0.3mm, which making your battery welding work more precise, meticulous and perfect.
  • 【Safety Protection Design】: This portable spot welders own over-temperature protection functions, it will automatically cuts off power when the overheating occurs to stay safe. With Gold plate terminal spot welding pen euipped, which have good conductivity, low contact resistance and quickly detachment features, 40cm length makes working more flexible. Special EC5 plug wire design for protects the metal part, prevents conductive short circuit and fireproof.

Additional Info :

Battery Spot Welder Machine SUNKKO 738AL – Battery Spot Welding Machine for 18650 14500 Lithium Battery Pack Building – Spot Welder with Adjustable Welding Head – Welder Battery Powered

6. Battery Spot Welder Machine SUNKKO 738AL

Features :

  • SUNKKO 738AL BATTERY SPOT WELDER – the all new battery spot welder from SUNKKO is the perfect piece of equipment to effectively spot weld battery packs thanks to its magnetic, moveable welding arm and large welding distance range
  • BATTERY SPOT WELDER COMPATIBILITY – suitable for 18650 and 14500 battery pack welding, this spot welder is designed for welding 0.2mm pure nickel or 0.3mm nickel plated materials
  • FOOT PEDAL SWITCH – designed with a foot pedal switch, our welder battery powered machine provides you with ultimate control and multiple pulse group settings (2-18) which are powered by touch sensor for precision and excellent results
  • OPTIONAL MOBILE WELDING PEN – 3 types of mobile welding pens are optional to use with this battery spot welder which is particularly helpful to support welding large-size battery packs. 70B, 71A and 71B mobile welding pens are compatible with this battery spot welder
  • CLEAR PARAMETER DISPLAY SCREEN – featuring a clear, easy to read display screen, our battery spot welder machine helps you to keep on track of your battery spot welding easily and to track and guide the pulse numbers and current parameters

Additional Info :

Item Dimensions
Height 7.87401574 Inches
Width 9.6456692815 Inches
Length 5.511811018 Inches
Mini Spot Welder, 18650 Battery Handheld Spot Welder 6 Gear Adjustable Mini Spot Welder Machine with Spot Welding Pen and Nickle Sheet for 18650 Battery for Craftsman/Beginner (Spot Welder A)

7. Mini Spot Welder, 18650 Battery Handheld Spot Welder 6 Gear Adjustable

Features :

  • 【High Quality 18650 Battery Spot Welder】 This is a high-quality spot welding machine with fine workmanship, stable performance and long service life. Small size, light weight and easy to carry. Easy to use, one-key open/close, very convenient.
  • 【High Speed Lithium Battery】 After being fully charged, thousands of points can be continuously welded on a 0.1-0.15mm nickel sheet. With its own charging management control module, you can use the power bank to charge the spot welder.
  • 【With Spot Welding Pen】Gold plate terminal spot welding pen, good conductivity, low contact resistance, copper pen barrel with 10AWG polysiloxane wire, humanized sleeve, safe to use.
  • 【Self Detection Function】The soldering pen is automatically triggered after touching the nickel sheet, and the response time is 0.8s. Low-power design, no need to worry about battery drain when shelving it.
  • 【Precise Welding】 6-level output power is adjustable, 1-6-1 cycle, welding is more precise. Long press to start, the last used file will be displayed, short press to add one file at a time. Advanced power management and software design will not reset or return to zero during welding.

Additional Info :

Item Dimensions
Height 1.574803148 Inches
Width 3.149606296 Inches
Length 5.511811018 Inches
DIY Mini Spot Welder with 4 Output Power, Household DIY Nickel Belt Portable 18650 Spot Welder with Aluminum Alloy Shell and 2Pcs x Welding Pen

8. DIY Mini Spot Welder with 4 Output Power

Features :

  • 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.
  • Instructions: Long press the power on button, the green light shows the electric quantity, the red light shows the output power. Short press twice to enter power setting, four gear power output, short press twice to save and exit. At this time, the welding is triggered at a fixed time, and the output is 1.5s once. Short press once to switch to automatic trigger mode, and automatically output when two welding pens are detected to be in good contact with nickel sheet. Long press to shut down.
  • 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.
  • 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.

Additional Info :

Color As Picture Show
Item Dimensions
Height 4.330708657 Inches
Width 5.3149606245 Inches
Length 7.480314953 Inches
Weight 100 Kilograms
CALIDAKA DIY Mini Spot Welder Machine Portable Handheld DIY Spot Welding Tool 5 Gears Adjustable for 1865 0/2175 0/3265 0 Battery Support 0.12-0.15mm Nickel Sheet with Welding Pen

9. CALIDAKA DIY Mini Spot Welder Machine Portable Handheld

Features :

  • Material: Made of aluminum alloy material, fine structure, wear resistance and can provides long service time.
  • 5 Gears Adjustable: One button to use, long press to turn on/off the machine, short press to switch gears, totally 5 gears adjustable. Equipped with Type-C Cable: For easy charge, very convenient.
  • Automatic Output: The MOS tube will automatic output when the welding pen connect to the nickel sheet. Equipped with Indicator Light: Blue-on, charge-red, fully charge-green. Automatic shut off to protect the battery under low voltage.
  • Portable: Large power, compact size, lightweight and portable, support welding battery. Battery: Built-in dual high-rate polymer power cells, provides high working efficiency.
  • High Performance: Dual thicken pure copper strip,supperlow internal resistance to increase overcurrent capability.

Additional Info :

Color Black
Item Dimensions
Height 1.181102361 Inches
Width 3.93700787 Inches
Length 5.905511805 Inches
Weight 1.0802650838 Pounds
Upgraded Mini Spot Welder with LCD Screen, Seesii 20 Gears Enhanced Portable Spot Welding Machine, Built-in 10600mAh Battery, with Spot Welding Pen & 2 Nickel Sheets for 18650 Battery Plate Welding

10. Upgraded Mini Spot Welder with LCD Screen

Features :

  • ★【Upgraded LCD Visible Screen Design】:Our DIY battery spot welder machine is 2021 newly designed with visible colorful LCD Screen, can clearly know the remaining battery, delay time, the output current, input voltage,temperature and gear level of the spot welder.You can know all the working condition of the mini spot welder at a glance through the screen,make your spot welding journey easier and safer.
  • ★【Enhanced 20 Gears Adjustable】: This mini spot welder equipment with 20 gears output power adjustable,with memory function and 5minutes automatic power off function.It also supports 20 gears of delay time adjustment, easy to adjust from 0.5s to 2.5s.Seesii spot welding machine can be adjusted according to your different needs,very fine adjustments can make the welding more precise and the spot welding effect more perfect.
  • ★【Built-in 10600Mah Rechargeable Battery】:Seesii portable spot welder built in 10600mAh high-capacity rechargeble polymer lithium battery,with type-C charging cable,can be fully charged within 3 hours,no need to charge frequently, and it can continuously weld thousands of points after being fully charged.What’s more, if you need to it charge to your phone,the mini welder tool can be used as a power bank.
  • ★【With 40cm Welding Pen & Portable Design】:The gold-plate spot-welding pen consists of multiple strands of high temperature wire,the special EC5 plug wire design for protects the spot welding pen and the metal part,with fine conductivity,torsional resistance ability and low contact resistance,using safely.The compact and portable size design is also very easy to carry.It is a very ideal spot welding tool for you.
  • ★【Wide Application & Warranty】: 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,It also can be used to weld iron, steel, stainless steel sheets with the thickness less than 0.3mm to other iron, steel, stainless steel materials.The best service to our customers is our aim,if you have any questions about our item, please feel free to contact us.

Additional Info :

Item Dimensions
Height 2.362204722 Inches
Width 5.511811018 Inches
Length 10.236220462 Inches
Weight 650 Grams

Buying Guide: Things To Consider When Select Battery Spot Welder

Many of you who work with electrical circuits are likely to be soldering and welding a lot of connections at the same time, as well. Welding connections with batteries is a little trickier than the rest.

Battery Spot Welder

The finest battery spot welders listed above will come in handy in this situation. We’ve outlined all of the features and specifications of these distinct battery spot welders so that you can make an informed decision. For your convenience, we’ve included the following comprehensive buying advice for battery spot welders in this article:

a) Welding Thickness

You need to adjust your spot welding size depending on the size of the battery you’re working with. For this to work, your battery spot welder must be able to weld a variety of thicknesses and/or sizes.

The majority of them therefore support a weld thickness range of 0.05-0.2 millimeters, which should be adequate in most circumstances. A wide variety of battery kinds and cable types should be no problem for you to use.

b) Welding Current

You want your battery spot welder to establish long-lasting connections, regardless of the thickness of the wires you use it on. The use of a battery spot welder powerful enough to effectively spot weld any type of wire on any type of battery is critical in ensuring this.

You may easily confirm this by looking at your machine’s welding current. To make spot weld connections for your electrical circuit batteries, you’ll typically be offered a range of 50A to 800A.

c) Temperature Range

There are a few battery spot welders that list their operating temperature ranges, and this might be a useful method to gauge how well the device performs.

For example, a temperature range of between 0 and 100 degrees Celsius or between 150 and 500 degrees Celsius is considered ideal. The majority of batteries, as well as metals, may be worked with ease at greater temperatures.

d) Work Cycle

A welding machine’s work cycle rating lets you know how long it will be able to operate at a particular moment. Battery spot welders typically provide a work cycle of around 20 pulses in a minute for their users to utilize. Spot welding multiple batteries before the work cycle refreshes is always a good thing.

e) Supported Batteries

Make sure your battery spot welder is compatible with the batteries you intend to weld in a circuit before you begin using it. There are numerous battery kinds available, however the 18650 and 14500 are the most commonly used in circuits. These batteries and a few more are now supported by nearly all battery spot welding machines.

f) Controls

It doesn’t matter how powerful your spot welder is if you don’t have the proper controls at your disposal. This is why it’s crucial to look into the available control options with each battery spot welder.

Some battery spot welders come with display modules that allow you to see if you’re operating the machine at the correct power level. Welders are typically operated by pushing a foot pedal or the welding head upwards on a table or other flat surface.

g) Accessories

To utilize your battery spot welder, you’ll need a slew of extra gear and accessories, just like with most other welding machines. Most battery spot welders come with a large variety of attachments pre-installed.

Welding needles, wrenches and screwdrivers as well as fuse tubes are included in this category. Nickel plating is also included. Additionally, you’ll receive a better deal on your battery spot welder and be able to use it right away if it includes all of these extras.

h) Warranty

Your battery spot welder should last as long as possible because spot welders and other welding devices are pricey. Checking the warranty of your battery spot welder before purchasing one is always a good idea. Most of them come with a one-year warranty, which is a reasonable amount of time.

Conclusion

Welding and connecting batteries are the most critical parts of most electrical circuits, therefore pay special attention. Because they can malfunction if they become too hot, welding them requires the use of specialized tools.

As a result, the top battery spot welders are included in our list. Additionally, we’ve outlined their most important features and specifications here, as well as a detailed buying guide. Here are some of our favorite battery spot welders based on this information:

Because of this, the Mophorn 737G battery spot welder can weld at a somewhat lower thickness than most other battery spot welders. With a welding current output of up to 800A, this battery spot welder can handle even the most complex circuits with ease.

The YaeCCC 737G battery spot welder is a good option if you prefer a more conventional battery spot welder. At this price point, it’s an excellent choice for heavy-duty use because to its ability to weld thicknesses ranging from 0.05 mm to 0.2 mm and a welding current output range of 50A to 800A.

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