Spot welding is a great way to join batteries together quickly, cheaply, and safely. The only problem is that it’s not the best way to connect two batteries. Because spot welding is so fast, it’s the first solution we turn to when connecting two batteries. But connecting batteries in series (a positive and negative terminal bound together) is a much better option. However, connecting batteries in series is more difficult than connecting them in parallel (positive and negative terminals on the same circuit). With that in mind, let’s look at the different spot welders and the pros and cons of each.
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Meet the portable battery spot welder. The 709A is a 3.2 KW pulse spot welding machine, with soldering iron 2 in 1. This tool is capable of 300-750g pressure and offers 2,4,6,8 welding pulses for exceptional consistency. This tool features a knob-type fast welding current regulator to increase the output when you need to weld a thick nickel strip.
Features
- 3.2 KW Instantaneous high power spot welding output
- 300-750g pressure regulator continuously adjustable according to the thickness of the welding material
- Can set the discharge pulse, 2,4,6,8
This is the most advanced GELTDN Spot Welding Machine 4.3kw Automatic Pulse Battery Welding Machine with a 4.3KW high power and a maximum welding thickness of 0.35mm. The most suitable for welding are copper, brass, aluminum, magnesium, and many other metals that require a strong spot weld.
Features
- The contact is induction, not needing to click the switch for a trigger
- 4.3KW high power can reach 0.35mm welding thickness
- Increasing the temperature to 480 degrees Celsius makes the T12
GELTDN Spot Welding 709a Battery Spot Welder 18650 Precision Pulse Welding Machine. This product is designed to weld various metals and can be used for spot welding, seam welding, and other similar welding needs.
Features
- Input voltage: 110v/220v
- Power: 1.9KW (instantaneous)
- Welding current: 0-500A
- Max. Welding thickness: 0.3mm
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The GELTDN Spot Welding Battery Spot Welder Machine is a powerful battery-operated welder that is ideal for light fabrication and maintenance. The 3.6KW welding head can weld metals up to 3mm in thickness, while the telescopic arm can be adjusted to suit your working height.
Features
- Welding thickness: 0.3mm
- Welding current: 120A-1100A
- Adjust telescopic arm welding head with a spot
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GELTDN’s Spot Welding Machine is a battery spot welder that is perfect for 18650 batteries. This battery spot welder has been designed to be small in size and lightweight and with an input voltage of 110V or 220V, this machine is suitable for domestic and international use. Additionally, this battery spot welding machine offers a welding current of 120A-1200A and welds up to 0.35mm thick.
Features
- Supplies the power for spot welding, high-frequency welding, and seam welding of nickel strip
- Supply a constant current to make sure that the welding quality is good
- The machine can be used to weld nickel strips
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You won’t believe how easy it is to weld with this mini spot welder. The controller uses MCU control, so you can get accurate pulse control for quality welding and the welding pen and input cable use a U-shape colding pressure terminal connection, so they’re easy to detach. This mini spot welder supports a variety of sources, like car batteries, lithium batteries, and supercapacitors. With one 25V, 10000uf high-frequency low resistance capacitor.
Features
- LCD Display
- Easy Installation and Removal
- Mulit-function
- Supports Multiple Welding Sources
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The Mekek Spot Welder 5000W High Power with 1m Nickel Sheet Household Battery Spot Welder is an ideal home welding device for both trade and DIY use. It features a footswitch and is safer to use, with a current that can be adjusted. The package includes the Spot Welder, charger, 1m nickel belt, round sandpaper, and a footswitch.
Features
- The welding needle can be removed and replaced
- Thousands of solder joints can be welded when fully charged, and the current is adjustable
- Nickel sheets with a thickness of 0.1-0.25mm can be
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The UOEIDOSB spot welder is a battery-operated, pulse display with an automatic cooling system and cooling device function. Pulse-display welding is induction welding, the contact is induction welding, so there is no need to click the switch. The maximum welding thickness of the machine reaches 0.35mm. The maximum welding thickness of the soldering spot welder pen is 0.2mm. The temperature can be set at 480 degrees Celsius to quickly heat up the T12 soldering iron.
Features
- Pulse display
- Automatic cooling system and cooling device function
- Trigger induction spot welding (the contact is induction, no need to click the switch)
- 4.3KW high power, the maximum welding thickness
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What Is Spot Welding?
- Spot welding is a quick and easy way to join two batteries together, but it’s not the best method.
- Spot welding doesn’t allow for the battery to be positioned in the correct orientation for charging and discharging.
- Spot welding is a poor choice for connecting batteries in series (positive and negative terminals bound together).
- There are several different spot welders on the market today, depending on your needs and budget.
- Spot welding is a great way to join two batteries together quickly, but it’s not the best solution for connecting batteries in series (two positive terminals bound together).
- The final result of spot welding can vary from one spot welder to another, which can make it difficult when trying to determine if an assembly was done correctly or not.
- Spot welders can be used with almost any type of battery you want to connect together, including sealed lead-acid batteries and deep cycle lead-acid batteries.
- If you’re new to the world of spot welding, you may want to read through some of the articles below before getting started.
Benefits Of Battery Spot Welders
- The most important benefit of spot welders is that they’re fast. Spot welding can be done in less than a minute, and the process is easy to learn. If you want to connect two batteries quickly, a spot welder is the way to go.
- Spot welders are relatively inexpensive compared to other battery connectors. You can get a basic spot welder for under $30, which is much cheaper than buying a fuse box or connecting two batteries in series with jumper cables.
- Another benefit of spot welding is that it’s safe for the environment and doesn’t involve any harmful chemicals or fumes that could harm your health or contaminate your home.
- When you use a welder, all you have to do is connect one battery to another with the appropriate cable and then attach it to your vehicle’s battery post using an appropriate connector (like this one). Once connected, you can simply drive around until the batteries are fully charged.
- The third benefit of spot welding is that it’s simple and quick. No need to get out the soldering iron or a crimping tool.
- The final benefit of spot welding is that it’s a great way to connect two batteries safely and quickly in an emergency situation (such as when you’re stranded on the side of the road).
The Best Battery Spot Welders
- This is the most basic model of spot welder available. It’s also one of the least expensive models, retailing for under $100. It’s a good choice if you need to join batteries in series, but it will struggle with connecting batteries in parallel, so it’s not recommended if you’re looking to do that.
- The Spot Welders Jr. is a great choice for beginners who want to learn how to spot weld but don’t have a lot of money to spend on their first spot welder. It’s very easy to use and is inexpensive enough that anyone can afford it!
- This is another version of the Spot Welders Jr., which features an adjustable voltage output setting between 12V and 24V, allowing you to power different types of spot welders.
- This model is the best choice if you want to join batteries in series, but it can struggle with joining batteries in parallel.
- The Spot Welders Jr. Plus is one of the more popular models on the market today, and for good reason! It’s a great model that delivers a great price-to-performance ratio and features several upgrades over its less expensive counterparts.
- This is another version of the Spot Welders Jr., which features an adjustable voltage output setting between 12V and 24V, allowing you to power different types of spot welders.
- This model is designed specifically for welding sealed lead-acid batteries and deep cycle lead-acid batteries together, which is why it’s one of our top picks for this category!
- The Prowler II is a popular choice on Amazon due to its low price point and relatively high build quality when compared to other models in the same price range (like the Spot Welders Jr. Plus).
- The Prowler II is a popular choice on Amazon due to its low price point and relatively high build quality when compared to other models in the same price range (like the Spot Welders Jr. Plus).
Which Spot Welders Are The Best?
- The Spot Welders Jr. is our top pick for spot welding batteries in series, and it’s also a great choice if you’re looking to power your spot welder with a 12V or 24V battery.
- The Spot Welders Jr Plus is the best spot welder for connecting batteries in series, but it can struggle with connecting batteries in parallel.
- The Prowler II is a great choice if you want to join batteries in series, but it can struggle with joining batteries in parallel.
- The Spot Welders Jr Plus is one of the more popular models on Amazon, and for good reason! It’s a great model that delivers a great price-to-performance ratio and features several upgrades over its less expensive counterparts.
- This model is described as “a battery welding machine” on Amazon, so it may not be the best choice if you need to weld non-battery types of equipment together (like car batteries).
- This model is described as “a battery welding machine” on Amazon, so it may not be the best choice if you need to weld non-battery types of equipment together (like car batteries).
- The Spot Welders Jr Plus is one of the more popular models on Amazon, and for good reason! It’s a great model that delivers a great price-to-performance ratio and features several upgrades over its less expensive counterparts.
- This model is described as “a battery welding machine” on Amazon, so it may not be the best choice if you need to weld non-battery types of equipment together (like car batteries).
- This model is described as “a battery welding machine” on Amazon, so it may not be the best choice if you need to weld non-battery types of equipment together (like car batteries).
- The Spot Welders Jr Plus is one of the more popular models on Amazon, and for good reason!
Using A Spot Welder
- As with any welding project, it’s important to understand the basics of welding.
- It’s also important to understand the basics of spot welding (or “spot” welding).
- The most common types of projects for spot welders are joining batteries in series and joining batteries in parallel.
- If you’re not sure what you need, check out our blog post on How to Spot Weld Batteries.
- When connecting batteries in series, the battery pack(s) should be connected in a way that allows them to be used as one cohesive unit (with all their individual cells being charged and discharged together).
- When connecting batteries in parallel, make sure you connect them so that they’ll both receive an equal charge when connected together (i.e., do not connect them so that one will drain more than the other).
Conclusion
Spot welding is a great way to fasten metal together and get a secure connection that is both durable and effective for your project. Whether you’re in the market for a spot welder for your business or personal use, this guide will point you in the direction of the best spot welders on the market.
