5 Best Battery Spot Welders of 2021 Reviews & Buying Guide


Spot welding is one of the most common types of welding methods while working on circuits. And while it can be used for most connections, the same cannot be said while connecting batteries to your circuit. In that case, you need special tools due to which we are here with the best battery spot welders that have been chosen as per these factors:

  • Welding Thickness: Since you will be making welding connections on small batteries, your spot welds are also going to be quite small in size or thickness. Generally, this ranges between 0.05 mm to 0.2 mm which is a decent enough range for most users.
  • Welding Current: For properly welding and creating electrical connections with a battery, it is quite important to use a powerful battery spot welder. Thankfully, most battery spot welders offer a welding current range of 50A to 800A which is quite high for welding connections with a battery.
  • Controls: Just like any other welding machine, it is highly important to set your battery spot welder to the right settings. Hence, most of them come with multiple dials, screens, and even foot paddles in some cases that you should check out before buying one.

Surely these factors can come in quite handy while picking the best battery spot welder for you. Although, if you want to buy the right one, you should also go through the features and specifications as well as the detailed Buying Guide regarding battery spot welders present down below so that you can choose the right one at the end.

5 Best Battery Spot Welders of 2021 

Best Battery Spot Welders of 2021: Reviews

1. Mophorn 737G Pulse Spot Welder

Mophorn 737G Pulse Spot Welder

Mophorn is quite a popular brand of welding machines since it offers highly versatile machines that are quite different from your average options available out there.

The Mophorn 737G battery spot welder comes at the 1st position of this list since it can be a great option for all kinds of detailed electrical projectors.

This is primarily due to the reason that this welder machine supports a welding thickness range of 0.01 mm to 0.15 mm which is quite lower than others. Since this spot welder is slightly less powerful than others, it offers a fairly compact and portable design which makes this spot welder highly versatile.

Despite having a lower thickness rating, this battery spot welder is still able to offer highly accurate welds thanks to its high welding current output of 50A to 800A. For using this spot welder, you can either use its included foot pedal or rely on the push-up welding head as per your liking. To keep this welder cool during operation, Mophorn has included a 4100 RPM cooling fan and an efficient radiator. Since Mophorn is a popular brand, you also get a 1-year warranty along with it for peace of mind.

Best Features:

  • Offers a welding thickness rating of 0.01 mm to 0.15 mm
  • Rated welding current of 50A to 800A
  • Comes with a warranty period of 1 year

Pros:

  • Ideal for detailed welding projects
  • Standard high welding current
  • Great value for money

Cons:  

  • Not ideal for heavy-duty usage

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2. SUNKKO Pulse Spot Welder 

SUNKKO 709A Battery Spot Welder

While you may not have heard about Sunkko in the past, you can certainly consider its battery spot welder if you want something made for heavy-duty usage.

Sunkko’s 788H battery spot welder comes at the 2nd position of this listicle as this welder offers similar results to a standard battery spot welder. For starters, you get a welding thickness range of 0.05 mm to 0.2 mm which is used by most users. Talking about its supported batteries, this battery spot welder can be used along with 18650 and 14500 batteries which are the two most common types out there.

While this entry-level battery spot welder is highly powerful for all kinds of spot welding requirements, it, unfortunately, does not mention any current output rating. Apart from spot welding, this battery spot welder also supports battery testing and battery charging making it a great all-in-one station for working on batteries. Speaking of the welding function, that can be done by using either its push-up head or the included foot pedal. Although, you do get a 1-year warranty with this spot welder which is always great to have.

Best Features:

  • Offers a welding thickness rating of 0.05 mm to 0.2 mm
  • Comes with a warranty period of 1 year

Pros:

  • Includes various handy accessories
  • Standard welding size
  • Quite a powerful spot welder

Cons:  

  • Does not mention a specific welding current rating

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3. Handhold YaeCCC 737G Battery Spot Welder

handhold battery spot welder

YaeCCC is another comparatively smaller brand of welding machines that you can consider if you are on a budget but still want something that offers standard performance numbers.

This YaeCCC 737G battery spot welder comes at the 3rd position of this article because it is the cheapest option present here that manages to offer an excellent value for money. It is possible thanks to the performance numbers of this spot welder which has a welding thickness rating of 0.05 mm to 0.2 mm. You can adjust between these using its inbuilt microcomputer which offers high precision and high efficiency by using just the required amount of power.

Another great thing about this battery spot welder is that it has a very high welding current output of 50A to 800A which is just perfect for getting proper welds. With the given current output, its max power is rated at 1.5 KW for the best possible welding performance. You also get a decent work cycle rating of 20 pules within a minute. And despite being a budget option, this YaeCC battery spot welder also includes a 1-year warranty for peace of mind.

Best Features:

  • Offers a welding thickness rating of 0.05 mm to 0.2 mm
  • Rated welding current of 50A to 800A
  • Comes with a warranty period of 1 year

Pros:

  • Highly affordable spot welder
  • Quite powerful especially for the price
  • Standard warranty for reliability

Cons:  

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4. SUNKKO 709A Battery Spot Welder

  SUNKKO Pulse Spot Welder 

Sunkko also makes higher-end battery spot welders that not only offer standard performance numbers but also additional features which you would expect at the given premium price tag.

The Sunkko 709A battery spot welder offers multiple control options making it a highly versatile and customizable battery spot welder. As for its performance numbers, this spot welder also supports a welding thickness of 0.05 mm to 0.2 mm. Unlike most other battery spot welders, Sunkko also offers a temperature range of 150 to 450 degrees which ensures that you can easily work on all batteries.

When combined with its welding current output of 50A to 800A, you can expect this battery spot welder to be the perfect option even for industrial usage. One of the most unique things about this battery spot welder is that it includes a total of three welding modes which include the push-up head, foot pedal, and even a mobile welding pen for high versatility. And because this is a premium offering from Sunkko, it also includes their standard 1-year warranty.

Best Features:

  • Offers a welding thickness rating of 0.05 mm to 0.2 mm
  • Rated welding current of 50A to 800A
  • Comes with a warranty period of 1 year

Pros:

  • Various handy control options
  • High-performance output for accurate welds
  • Decent warranty and build quality

Cons:  

  • Expensive battery spot welder

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5. LFJD 737G Pulse Spot Welder

LFJD 737G Pulse Spot Welder Spot Welder

You can also consider LFJD or LiFuJunDong and its battery spot welder machine if you are on a tight budget and still want something that offers decent performance.

LFJD’s 737G battery spot welder is among some of the cheapest options available out there especially when you consider its performance numbers. Starting with its welding thickness, this battery spot welder supports 0.05 mm to 0.2 mm spot welds with ease. Since you also get a work cycle rating of 20 pulses in a minute, you can quickly make a lot of welds without waiting for the work cycle.

This is made possible with its high welding current output of 50A to 800A which is just perfect for properly making battery spot welds. It uses a voltage of 110V allowing you to use it in your home without needing any additional adapters. Since it weighs 4.3 KG, you can even take it to other places if needed. However, because LFJD is a fairly new and small brand, it does not offer any kind of warranty with this battery spot welder.

Best Features:

  • Offers a welding thickness rating of 0.05 mm to 0.2 mm
  • Rated welding current of 50A to 800A

Pros:

  • High value for money spot welder
  • Quite powerful for the price
  • Multiple control options for ease of use

Cons:  

  • Lacks a manufacturer warranty

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Buying Guide for the Best Battery Spot Welders

Those of you who work on a lot of electrical circuits are also most likely soldering and welding a lot of connections together. And while most of them are quite easy to do, the same cannot be said about welding electrical connections with batteries.

In that case, you will need to use something like the best battery spot welders present above. To help you out in picking the right one, we have explained all the features and details of these various battery spot welders. Now, we also have the following complete buying guide regarding battery spot welders in this listicle for helping you in your buying decision:

Welding Thickness

Since some batteries are quite small and others are large, you also need to change your spot welding size respectively. However, this is only possible when your battery spot welder also supports variable welding sizes or thickness ratings. As a result, most of them support a welding thickness range of 0.05 mm to 0.2 mm which should be fairly decent in most cases. You should be able to use the same for a large number of battery types and wire types with ease.

Welding Current

Whether you are using your battery spot welder for thinner connections or thicker ones, you would want it to make secure connections that stay intact for a long time. To ensure this, it is highly important to use a powerful enough battery spot welder that can properly spot weld all kinds of wires on all kinds of batteries.

One easy way to check this is to look at the welding current offered by your machine. Generally, this will be given as 50A to 800A which is much higher than what you will need in most cases for making spot weld connections for your electrical circuit batteries.

Temperature Range

Even though not all battery spot welders have a temperature range mentioned, a few of them do which can be a great way to get an idea of its performance. This includes temperature ranges like 100 to 400 degree Celcius or 150 to 500 degree Celcius where a higher range is always considered to be better. With higher temperatures, you can easily work with most batteries and solder metals.

Work Cycle

All welding machines also have a rating known as work cycle which tells you about the time for which they can work at a given time. Usually, battery spot welders offer a work cycle of about 20 pulses within a minute. With this, you can easily spot weld a lot of batteries before waiting for the work cycle to refresh which is always great.

Supported Batteries

Before you go ahead and start using a battery spot welder, it is highly important to ensure that your welder is compatible with the batteries that you want to weld in a circuit. While there are a lot of battery types available out there, two of the most popular ones used in circuits include 18650 and 14500 batteries. As a result, almost all battery spot welders support welding these batteries along with a few others.

Controls

Even if you have a powerful battery spot welder, you will not be able to use it to the fullest if you do not have the right controls at your disposal. Hence, it is quite important to check the control options offered by a given battery spot welder. Other than standard dials and switches, a few models also offer display modules for ensuring that you are running your battery spot welder at the right power output. As for using the welder, most of them allow you to do this by either pushing the welding head upwards or by using an included foot pedal for ease of use.

Accessories

Similar to most other welding machines, to use your battery spot welder, you are going to need a lot of other tools and accessories along with it. Fortunately, almost all battery spot welders include a wide range of accessories in the box. This includes things like spot welder, foot pedal, battery holder, welding needles, wrenches and screwdrivers, fuse tubes, and nickel platings. If your battery spot welder also comes with all these, not only do you get a better value for money, but it also allows you to start using your battery spot welder right away.

Warranty

As spot welders and other welding machines do not come in cheap, you would want your battery spot welder to stay functional for as long as possible. Therefore, it is always a great idea to check the included warranty of your battery spot welder before buying one. Usually, you will find most of them to include a 1-year warranty which is quite decent.

Conclusion

Out of the various components used in most electrical circuits, you have to pay extra attention while welding and connecting batteries. If they get too hot, they may stop working because of which you have to use special tools for welding them. Thus, a few of the best battery spot welders are present above in this listicle. They also have their significant features and details explained above along with a complete buying guide. Based on these details, here are some of our preferred picks for the best battery spot welders:

Unlike most other battery spot welders, the Mophorn 737G battery spot welder offers a slightly lower welding thickness range of 0.01 mm to 0.15 mm. And since this is combined with a high welding current output of 50A to 800A, you can use this battery spot welder for highly detailed circuits with ease.

Although, if you want more of a standard battery spot welder, then the YaeCCC 737G battery spot welder can be a great pick. This unit supports a welding thickness range of 0.05 mm to 0.2 mm along with a welding current output of 50A to 800A making it the perfect option for heavy-duty usage, especially at the given price tag.

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