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.
Best Battery Spot Welders Table
Best Battery Spot Welders | Welding Capacity (Thickness) | Welding Current | Buy Now |
---|---|---|---|
Kerpu Mini Spot Welder | up to 0.2 mm | 650A | Check On Amazon |
Seesii Portable Spot Welder | 0.1-0.2mm | 650A | Check On Amazon |
AWithZ Handheld Spot Welder | 0.2mm or less | 650A | Check On Amazon |
Glitter 801B Battery Spot Welder | 0.05-0.3 mm | 2000 A | Check On Amazon |
U.S. Solid USS-BSW06 Spot Welder | 0.05-0.4 mm | 2500 A | Check On Amazon |
Best Battery Spot Welders Reviews
1. Kerpu Mini Spot Welder
Kerpu redefines portable welding with its spot welder, blending professional-grade power with a lightweight, compact design. Ideal for handling 18650 and similar cylindrical lithium batteries, this welder features adjustable power settings and an ergonomic welding pen for enhanced precision. Packed with robust safety measures and versatile functionality, it’s a dependable choice for professionals and dedicated DIYers alike.
The device stands out with its 11 adjustable gears, allowing for meticulous control over the welding process, ensuring both precision and flexibility in various applications. Its portable nature is enhanced by a high-capacity 5000 mAh battery, which supports prolonged use without frequent recharges. The automatic and manual modes add a layer of convenience, adapting to different user preferences and project demands. However, it’s important to note that mastering these settings might require a bit of a learning curve, particularly for those new to spot welding.
Designed with safety in mind, Kerpu ensures its welder includes features like overheating protection and auto-shutdown, safeguarding both the tool and the user. While the initial setup can be somewhat confusing, and there’s a risk of sparks during use, the overall design is geared toward efficient and safe operation. This welder proves to be a valuable tool for anyone looking to perform delicate battery repairs or handle small-scale welding tasks.
Specifications:
- Brand: Kerpu
- Power Source: Battery Powered
- Wattage: 5000 milliamp hours
- Special Features: Portable, Adjustable
- Welding Capacity: Up to 0.2 mm thickness
- Battery Type: 5000mAh, rechargeable
- Welding Pen Length: 16 inches
- Adjustable Gears: 11
- Charging Port: Type-C
- Automatic Shut-off: Yes, with protection
Pros:
- Highly portable and flexible.
- Eleven gear settings for precision.
- Overheat protection enhances safety.
- Suitable for various battery types.
- Quick, Type-C charging capability.
Cons:
- Sparks may occur if not cleaned.
- Not ideal for casual users.
- Pressing too hard weakens welds.
2. Seesii Portable Spot Welder
The Seesii portable spot welder combines advanced technology with a vibrant LCD screen that displays critical welding parameters, offering precise control at your fingertips. Designed with portability and functionality in mind, this tool caters to professionals and hobbyists who demand both efficiency and convenience. Beyond its performance, the colorful screen adds a modern, aesthetic touch, making the welding process more intuitive and engaging.
The welder distinguishes itself with its impressive 80 adjustable power levels, allowing for extremely fine-tuned control over the welding process. Such precision ensures that users can achieve optimal results on various materials and battery sizes, from nickel sheets to cadmium batteries. The built-in 7500mAh battery supports extensive usage and can even charge other devices, making this welder a versatile tool in your kit. The long, gold-plated welding pen further aids in its ease of use, providing excellent conductivity and resistance to high temperatures.
While its sleek design and powerful performance are impressive, the learning curve for Seesii’s digital welder might deter beginners. The device boasts an extensive array of settings, which can feel overwhelming to those just starting. Furthermore, the digital interface, though feature-rich, may come across as intimidating to anyone not familiar with advanced welding tools. For those who persevere, however, the payoff is clear—a machine that combines durability, precision, and modern technology to deliver exceptional results.
Specifications:
- Brand: Seesii
- Display: Colorful LCD Screen
- Power Levels: 80 Adjustable Settings
- Battery: 7500mAh Rechargeable
- Charging: Type-C, 3 hours full charge
- Pen: Gold-plated, 40cm length
- Applications: Wide, includes NI-MH batteries
- Safety: Multiple protection features
- Portable: Compact design for mobility
- Additional: Can charge phones
Pros:
- Highly customizable power settings.
- Informative LCD screen display.
- Long-lasting 7500mAh battery.
- Multi-functional as power bank.
- High conductivity welding pen.
Cons:
- Complex interface can intimidate.
- Requires practice for optimal use.
- Limited instructions for troubleshooting.
3. AWithZ Handheld Spot Welder
The AWithZ handheld spot welder redefines portability by integrating the power supply and welding interface into a single compact device. This design eliminates the need for a separate spot welding pen, making it ideal for small-scale projects and on-the-go repairs. With just two buttons for operation, it caters to beginners and professionals alike, offering simplicity without compromising functionality.
The device features 11 adjustable gears, tailored to accommodate a variety of materials and thicknesses, from delicate mobile phone batteries to more robust 0.15mm nickel plates. The versatility of the welder is further enhanced by its built-in protections, including overcharge, temperature control, and short circuit safeguards, which collectively ensure a safe and reliable welding process. Moreover, the practical design allows users to make quick adjustments and switch between automatic and manual modes, catering to different welding preferences and project requirements.
While this spot welder offers notable simplicity, it does have its limitations. The absence of a separate welding pen can make maneuvering in tight spaces challenging, reducing its effectiveness for tasks requiring precise positioning. Furthermore, the limited power adjustments, though adequate for general applications, might not meet the demands of professionals seeking finer control in their welding operations.
Specifications:
- Brand: AWithZ
- No separate welding pen needed
- Adjustable Gears: 11 settings
- Battery: Built-in, 200+ welds per charge
- Safety Features: Multiple protections
- Mode: Automatic/Manual switchable
- Use: Wide, includes mobile phone batteries
- Design: Compact, handheld
- Easy Operation: 2-button control
- Material Compatibility: Up to 0.15mm nickel
Pros:
- Compact and easily portable.
- Simple two-button operation.
- Safety features prevent accidents.
- Suitable for a variety of materials.
- Quick mode switch enhances flexibility.
Cons:
- Limited maneuverability in tight spaces.
- Not ideal for ultra-precise control.
- Less suited for heavy-duty tasks.
4. Glitter 801B Battery Spot Welder
The GLITTER 801B redefines heavy-duty welding with its advanced super capacitor technology, ensuring stable and precise pulse spot welding for industrial-grade tasks. Its ability to work seamlessly with up to 0.3mm nickel plates and various metals highlights its versatility for professional applications. Whether you’re tackling demanding environments or intricate welding jobs, this model stands out as a reliable and high-performance solution.
Equipped with both automatic and manual welding modes, the GLITTER allows users to toggle between control setups depending on the precision required for the task. The inclusion of a mobile welding pen and a handle-push welding arm enhances its ergonomic design, enabling users to perform extended welding sessions without fatigue. The welder’s intuitive LED display panel provides real-time feedback on welding parameters, assisting in fine-tuning the process to achieve optimal results consistently.
Designed for professionals, the GLITTER’s powerful features could feel excessive for casual users. The machine’s setup and controls necessitate a solid understanding of welding principles, which might intimidate those new to the craft. Its industrial-level power is a standout feature but may overshadow its practicality for lighter, everyday tasks.
Specifications:
- Brand: Glitter
- Power Source: AC
- Wattage: 11.6 KW
- Special Features: Portable, High Power
- Maximum Pulse Welding Power: 11.6 KW
- Welding Modes: Automatic and Manual
- Adjustable Settings: 0-99 range
- Nickel Plate Welding: Up to 0.3mm
- Capacitor Technology: Energy efficient
- Display: LED panel shows crucial data
Pros:
- High output for industrial use.
- Dual welding modes for flexibility.
- Mobile welding pen increases reach.
- Capacitor storage for steady power.
- Efficient LED parameter display.
Cons:
- Requires deep welding knowledge.
- Bulky compared to smaller units.
5. U.S. Solid USS-BSW06 Spot Welder
U.S. Solid delivers industrial-grade precision with the USS-BSW06 spot welder, built for high-frequency applications demanding durability and reliability. Featuring advanced high-frequency inversion technology, it enhances pulse energy output using supercapacitors, ensuring efficient and clean welding. Perfect for intensive battery pack construction, this model is tailored for users who prioritize consistent performance and long-lasting quality.
This welder is equipped with a dual-mode operation, offering both automatic and manual controls. The automatic mode is ideal for quick, repetitive jobs, while the manual mode provides the precision necessary for complex welding tasks. Its substantial 14.5 KW output supports welding up to 0.3mm pure nickel, showcasing its capability to handle high-demand industrial applications. Additionally, the inclusion of multiple welding pen accessories and a foot pedal enhances its versatility, catering to a wide array of welding needs.
Though powerful and precise, the spot welder can be intimidating for beginners due to its intricate controls. The advanced settings and features require users to be well-versed in welding techniques, which may deter casual users. While it excels in professional contexts, its high power and precision can be excessive for more basic household projects, making it best suited for heavy-duty, specialized welding tasks.
Specifications:
- Brand: U.S. Solid
- Power Source: Corded Electric
- Wattage: 14.5 KW
- Special Features: Portable, High-Frequency
- Max Welding Output: 14.5 KW/2500A
- Dual Welding Modes: Automatic/Manual
- Welding Pen Accessories Included
- Voltage Input: 100-240 V
- Energy Efficiency: Super capacitor technology
- LED Display: Monitors and adjusts settings
Pros:
- Powerful output for industrial tasks.
- Dual modes enhance flexibility.
- Accessories increase versatility.
- Super capacitors ensure efficiency.
- Detailed LED display for control.
Cons:
- Requires technical welding knowledge.
- Bulky for non-industrial environments.
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:
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
FAQs:
A battery spot welder is essential for assembling battery packs and other electronic devices. It ensures a strong and reliable connection between battery cells or tabs, which is crucial for the performance and safety of the overall battery system.
When used according to the manufacturer’s instructions, battery spot welders are generally safe. They often come with safety features to prevent overheating and overcurrent. Users should wear appropriate protective gear and follow safety guidelines to minimize risks.
Look for features such as adjustable welding parameters, precision control, safety features like overcurrent protection, and compatibility with various materials and thicknesses. Additionally, consider the build quality and ease of use.
While designed for battery applications, some spot welders may be versatile enough to work with other thin metal materials. However, it’s essential to check the specifications and user guidelines provided by the manufacturer.
In some cases, yes. A battery spot welder can be used to repair or replace individual cells or tabs in a battery pack. However, it’s essential to exercise caution and follow proper procedures to avoid further damage or safety risks.
Conclusion
Choosing the best battery spot welder depends on your needs, portability, and ease of use. The Kerpu Mini Spot Welder is compact and reliable, making it great for DIY projects. The Seesii Portable Spot Welder is highly portable and precise, perfect for small-scale tasks. For heavy-duty work, the U.S. Solid USS-BSW06 Spot Welder offers strong performance and durability. Each option suits different requirements, so consider your specific needs to find the best fit for efficient and quality welding.