I have tried to find the best 5 spot welders, which are trending on the market. After extensive research I found that most of the spot welders are made by Sunkko, which is a popular brand name to manufacture a wide range of welding machines and equipment.
Spot welding is also known as resistance spot welding. It comes in the electric resistance welding category, which is good to weld sheet metal products. The welding process involves the use of copper alloy electrodes for the welding current concentration.
The top 5 spot welders are:
SUNKKO 737G+ Battery Spot Welder
Handhold YaeCCC 737G Battery Spot Welder
SUNKKO 709A Battery Spot Welder
Sunkko 737U Battery Spot Welder
SUNKKO 737G+ 4.3KW High Power Spot Welding Machine
SUNKKO 737G+ Battery Spot Welder
Sunkko 737G+ has been selected as the top spot welder in the best 5 spot welder reviews because it is a great pulse welding machine for 18650, 14500 lithium batteries. Please make sure that the battery pack works with Nickel strips 0.35mm.
Sunkko is a popular brand name for making battery spot welders, so please check Sunkko 737G+ as well.
This spot welder by Sunkko has a good design and impressive welding function, which are great for improving the efficiency of battery pack welding process.
Additionally, you can perform welding process using various welding methods, which are optional. And there is no welding limitation of the battery pack size.
SUNKKO 737G+ Battery Spot Welder also comes with soldering function that lets you perform soldering in 300° C temperature with great efficiency.
Good thing about this Sunkko welding machine is the intelligent and integrated temperature sensor and great cooling capability. So the temperature sensor and cooling system work according to the internal temperature of the machine.
This Sunkko brand spot welder gives great welding performance because it can handle welding thickness range from 0.03 to 0.3 mm while the nickel welding thickness is from 0.03 to 0.15 mm.
Performance Improvement Possibility There are three ways to improve the performance if you use this spot welder:
Welding current adjustment (one to eight level optional)
By adjusting pulse quantity from 2 to 18 (optional)
By pressure knob (pressure can be regulated between copper welding rods and nickel strip)
Handhold YaeCCC 737G Battery Spot Welder
The second spot welder I have selected, which is Handhold YaeCCC 737G spot welder. This welding machine comes with various advantages and features for the smooth spot welding. The YaeCCC battery spot welder is made keeping precision current in mind. Yes, you will be able to use micro-chip for controlling precision current for the greater welding accuracy.
Yaeccc is another name for good quality spot welders, please check YaeCCC handhold battery spot welder as well.
On the other hand, you are able to select various level of current in the 0.5 pulse increment. This way, you will be able to weld more conveniently, safely and efficiently.
Handhold YaeCCC 737G Battery Spot Welder lets you weld nickel strip within 0.05 to 0.2 mm thickness because it comes with dual pulse mode selection and 0 to 99 level current setting.
And, please don’t forget the combination of fixed welding head and foot switch, which are great for various welding requirements.
The purchase of Handhold YaeCCC 737G Battery Spot Welder gives you various welding tools also. These tools are 1 x foot pedal, 1 x hex wrench, 4 x welding pins, 2 x fuses and the instruction manual.
SUNKKO 709A Battery Spot Welder
Since Sunkko is the leading brand name for manufacturing impressive spot welders, so the third spot welder I have selected, which is also from Sunkko. The good thing about this spot welding machine is the affordability and performance. Yes, it is an affordable spot welder that can be purchased in the price range of $250.
On the other hand, this is a feature-rich spot welding machine. It comes with various impressive features that directly contribute to its overall welding performance. The Sunkko 709A welder gives you the option of pulse selection from 2 to 18, which is undoubtedly huge. Other impressive features are: foot pedal, temperature regulation, pressure regulated head, current regulator and fixed/spot welding capabilities.
Since you are able to increase the welding current so it is very useful for the desired welding performance at the time of welding thicker nickel strip.
Pros
Foot pedal is included while most spot welders don’t come with a foot pedal so it is really a plus point.
Great pulse quantity adjustment feature for the spot welding ease.
Cons
The welding pen is of poor quality.
Some users complains that the welding performance is not consistent.
Sunkko 737U Battery Spot Welder for 18650 Lithium Batteries
Sunkko 737U is another affordable welding machine that can be purchased in less than $200 price range. Such low price seems very good and very competitive price on the market where you can rarely find a performance oriented welder in the $200 price range.
This Sunkko brand spot welder is very suitable for welding 0.05 to 0.2 mm nickel plated steel strips. And since it can also be operated on the battery power so it greatly works with 18650 and 14500 lithium rechargeable batteries.
In case, you are using this spot welder then one plus point arises here is the welding performance improvement. By adjusting the welding current level, you can surely improve the welding performance. However, you have to adjust the current level according to your requirement and use the same setting for the repetitive welding tasks.
Please make sure that this spot welding machine is not made for welding materials such as copper and aluminum. It is a good welder for welding pure nickel, nickel plated steel, and nickel plated iron, iron and other alloys.
SUNKKO 737G+ 4.3KW High Power Spot Welding Machine
SUNKKO 737G+ spot welder comes in two versions in regards to voltage. You can choose either 110V or 220V version as per your welding requirements. Although most of the Sunkko welding machines are of high power without any doubts, this 737G+ model comes with 4.3KW high power for the smooth spot welding performance. Since this spot welder comes from the popular Sunkko brand so there shouldn’t be any doubts to the features it carries and the performance it delivers.
This welding machine can handle maximum 0.4mm welding thickness. The remote spot welding pen can handle maximum welding thickness of 0.2 mm.
I already mentioned that it is a feature-rich welding machine and so it comes with impressive features. These welding machine features directly contribute to the overall welding performance. When we talk of the welding capability, it delivers impressive welding current from 120A to 1200A. This machine can either be operated automatically or manually because it also comes with a food pedal control capability.
With the purchase of this SUNKKO 737G+ spot welder, you also get all the required welding tools. These welding tools are 1 x spot welding pen, 1 x wired foot switch, 2 pairs of spot welding pin, 1 x wrench, 2 x fuse, 1 x electric grinding machine, 1 x battery fixture and nickel tape sample of 50 pieces.
Most of the spot welders mentioned above come from Sunkko because this is a famous brand name that makes impressive spot welder. In the best 5 spot welders, 4 welders are from Sunkko and 1 is from other brand.
Our main purpose of writing the best 5 spot welder reviews is to direct you towards the popular spot welding machines, which are trending on the market. The information, reviews and other facts are collected from various internet websites including welding forums, blogs, social networking websites and shopping websites.
WelderReview.com reviews a wide range of welding machines and other related tools such as welding helmets, carts, clamps, gloves, kits, hoods, masks, rods, wires and other welding accessories from leading brands such as Millar, Lincoln, Hobart and others.
Integrated Design for Convenience: Combines power supply and welding pen into one unit; No need for an external welding pen; Designed for easy one-handed operation; ideal for home and on-the-go use; Seesii handheld spot welder allows you to weld with ease
Versatile Welding Capabilities: Battery spot welder is suitable for various cylindrical lithium batteries (18650, 26650, 32650), mobile phone batteries, nickel-metal hydride, and nickel-cadmium batteries; Supports welding nickel-plated sheets (0.1-0.2mm)
80 Adjustable Power and Dual Mode: Dual pulse output with 80 adjustable power levels; Offers automatic and manual modes with high-temperature resistant wires; Customizable welding power ensures high-quality welds; Choose the mode that suits your task
5.0Ah Battery with Type-C Charging: 5000mAh battery with 800A max output; Delivers over 800 welds on a full charge; Supports Type-C charging; Durable performance reduces frequent recharging, ensuring continuous work on large project
OLED Display with Safety Features: OLED color display shows real-time system mode, power, preheat status, time delay, and welding progress; Includes protection against low voltage, overcurrent, and overcharge for safe and reliable operation
Product Details
Brand:
Seesii
Model #:
Seesii-ZC-567
Price:
$40.99
Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
【4.0Ah Battery with Type-C Charging】4000mAh battery with 99 Gears; Delivers over 800 welds on a full charge; Support Type-C charging at the same time you can charge other devices with USB port; Durable performance reduces frequent recharging, ensuring continuous work on large project
【Widely Used】 Micro spot welder is mainly used for battery nickel welding, can be used for 18650/21650 and other cylindrical lithium batteries, nickel-metal hydride/cadmium-nickel batteries and other spot welding. You can also repair cell phone batteries, solder lenses. And you could also use it as a power bank.
【Intelligent and Safe】 The 18650 spot welder kit features upgraded chip for convenient operation; The spot welder will automatically stops when temperature exceeds 60℃/140°F to prevent damage. Note: Practice several times to find the right welding strength
【 Brass Spot Welding Pen 】The head of welding pen is detachable. You don`t need to replace the whole welding pen if the head is damged. And the welding pen is made of brass, solid and endurable!
【Colorful Screen】With 1.8 inch LCD colorful screen, shows you the welding status, the battery voltage, temperature, preheat time, pulse time, interval time, charging voltage/current/power and over temperature/low voltage/short circuit warning indicator
Product Details
Brand:
Awgem
Model #:
MC2
Size:
MC211
Dimensions:
7.8 X 4.33 X 2.52 inches (Length X Width X Height)
🚀【8000W Battery Spot Welder】:The upgraded spot welder with Dual Pulse Output,foot pedal welding mode which can easily weld 0.1-0.3mm thick nickel sheets, you can finish the welding work easily and efficiently, the welding spot is nice and elegant. Can be used for spot welding of batteries, hardware, and electronic components.
🔋【1-9 Level Knob Adjustment】:The adjustable spot welder can weld thousands of points continuously on nickel sheet after full charge,the solder pins of the adjustable spot welding machine can be removed and replaced, easy installation and operation.The mini spot welder with 9 Level output power adjustment design, you can adjust the output power 0-800A by turn the knob, the larger the value, the higher the output.
🚀【Easy to Use】:The solder pins of the adjustable spot welding machine can be removed and replaced, easy installation and operation.The DIY battery spot welder machine is foot switch controls welding, spot welding is more arbitrary. Just press the nickel belt with two soldering pens and step on the foot switch. Wait for about 0.5 seconds for output spot welding,then release the foot switch.suitable for precise welding.
💌【Warm Tips for Beginner】: LCD Screen Display,The battery voltage level is the key factor affecting the spot welding effect.Our spot welder screen can display the internal voltage of the product in real time,it is very convenient for you to check and charge in time.The product should be fully charged before first use, please charge when the voltage on the screen falls below 7.3V.
📞【Wide Application & Warranty】 The spot welder with large output power can be used to connect nickel strips of 18650 lithium battery, or spot welding iron sheets, stainless steel sheets. And it is also suitable for welding 0.1-0.15mm nickel plated steel sheet and 0.1mm pure nickel sheet quickly. In the process of using the spot welder, please feel free to contact us if you have any quest.
【80 Gears Adjustable】: Our handheld mini spot welder offers 80 adjustable power levels, ensuring optimal welding tailored to your material needs. It supports the welding of nickel sheets with a thickness of 0.1-0.15mm, and supports the welding of 0.2mm nickel sheets when fully charged. From nickel to stainless steel, this smart device automatically recognizes and adapts to different materials, guaranteeing firm, precise, and reliable welds every time.
【Safety Meets Convenience】: With dual-mode functionality—automatic and manual—our mini welder prioritizes safety without compromising on usability. Crafted with high-quality polymer cells, it features multiple protection measures against low voltage, overcurrent, and overcharge, providing peace of mind during operation. Switch between modes effortlessly for seamless welding experiences.
【Portable Performance】: Designed for one-handed operation, our all-in-one mini welder liberates your other hand for holding nickel strips or securing batteries, making welding on-the-go a breeze. Simply long-press the power button to activate, and toggle between English and Chinese with the "POWER" and "+" buttons. Plus, its compact size and ergonomic design make it perfect for mobile use in various settings.
【Long-lasting Durability】: Equipped with a powerful 5000mAh battery, our mini welder ensures extended usage with minimal downtime. With a maximum output current of 1200A, it delivers robust performance for over 800 welds on a single charge, catering to your welding needs with efficiency and reliability. And thanks to its ultra-low power consumption, standby time is significantly prolonged, ensuring readiness whenever duty calls.
【Intuitive OLED Display】: Featuring a vibrant OLED color display, our battery welder provides real-time feedback on power levels, battery status, preheating, delay, and welding progress, ensuring optimal control and monitoring throughout the welding process. Whether you're a professional or a hobbyist, our multi-functional welder, with its dual-pulse output, is your go-to solution for welding cylindrical lithium-ion, nickel-metal hydride, and nickel-cadmium batteries, as well as various mobile repair tasks.
Product Details
Brand:
Lieberwell
Model #:
Q03E1
Price:
$35.69
Handheld Spot Welder, Battery Spot Welder with Automatic and Manual Modes, 80 Gears Adjustable, Mini Portable Spot Welding Pen with 2pcs Welding Tips & Nickel Sheets for DIY Battery Pack Welding
Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
【Super Capacitor Spot Welder】: ALIESTFDNO super capacitor energy storage battery spot welder is mainly used for spot welding 18650 batteries. It adopts the latest microcomputer control board to accurately control the current and discharge time. Dual mode use, more stable performance, safer. Adopt aviation aluminum alloy shell, high hardness, good wear resistance, anti-crushing, practical.Equipped with 1 x spot welder, 10M nickel strip, soldering pen needle x 2.
【Advanced Safety & Intelligent Technology】: Built-in power balancing circuit to ensure that the voltage of the two batteries is equal and protect the use of capacitors. Adopting intelligent fan temperature control strategy, when the voltage is fully loaded, the over-temperature protect will be automatically turned on when the temperature is greater than 60 degrees Celsius, the fan will stop rotating, the bearing life will be extended, and the buzzer alarm will sound.
【0.1-0.3mm Micro Welding】: Dual battery spot welder is equipped with two super capacitors, up to 3000 Farad capacitors, maximum output 2100A, 25.0 gears adjustable, with LCD color display. It can be used to weld actual nickel strip thickness up to 0.25mm, maximum welding up to 0.3mm, pure nickel sheet within 0.15mm.
【1-25.0 Level Adjustable】: Our spot welder equipment has 25.0 gears of adjustable output power, which can be easily adjusted by rotating the button (1-25.0 range). Unlike other spot welders, our accuracy is accurate to 0.1 digit. You can adjust the spot welding accuracy according to different needs. The more accurate the adjustment, the more perfect the spot welding effect.
【Dual Mode】: 2024 Upgraded from the traditional spot welding machine, this spot welder is equipped with automatic mode and foot-operated spot welding plate, which can automatically sense the contact between the welding needle and the nickel strip and automatically output pulses. You can also connect a foot switch to use the spot welding machine according to your habits. Dual super capacitor design, the maximum output power can reach 10.5KW, can be used for spot welding of batteries, hardware and electronic components, and is an ideal choice for making battery packs and engineering repairs.
Product Details
Brand:
ALIESTFDNO
Model #:
3000F Capacitor Battery Spot Welder
Color:
Black
Dimensions:
7.28 X 3.93 X 5.9 inches (Length X Width X Height)
【Two Pulses Welding】Two pulses are released simultaneously in welding-one cleans the oxide layer on welderment, reducing the spark spattering, and the other keeps on welding to ensure the consistency of energy output and improvement o f welding stability
【A-Grade Battery& 2in1】 The spot welder is equipped with 2 high rate power A-Grade batteries (5000mAH large capacity) . You could use it to weld thousands of spots after fully charged. And you could also use it as a power bank
【 Adjustable Output& Wide Application】4 combination gear adjustment. The welding thickness is 0.1-0.25mm. It can be used to weld nickel sheet, iron sheet, statinless steel sheet, aluminum sheet
【 Brass Spot Welding Pen 】The head of welding pen is detachable. You don`t need to replace the whole welding pen if the head is damged. And the welding pen is made of brass, solid and endurable!
【Colorful Screen】With 1.8 inch LCD colorful screen, shows you the welding status, the battery voltage, temperature, preheat time, pulse time, interval time, charging voltage/current/power and over temperature/low voltage/short circuit warning indicator
Biggest Advantage : The biggest advantage of a battery spot welder is that you can operate the electrodes with one hand. Most handheld welding machines have two electrodes held in each hand, but this requires both hands to operate the electrodes, making it difficult to move the object to be welded freely. However, using our spot welder greatly improves work efficiency as you can freely use one hand.
Very Easy to Use - the entire spot welding machine only has 2 buttons, and our product has a text label on it that explains the meaning, which is very easy to understand. One hand can control the automatic and receive modes, and the side button of the spot welding machine is pressed and held for 2 seconds to turn on the spot welding machine. In automatic mode, adjust the current output gear to work directly. Manual mode, short press the edge measurement button, press once, output once.
Performance and Value of the Spot Welder: The spot welding pen is embedded in a unit and assembled together with tin, so there is no need for additional spot welding pens. It is portable and easy to carry. The overall structure is compact, with stable performance, and the battery can be quickly soldered to construct a battery pack.
11 Adjustable Gears - The spot welding machine has 11 adjustable output power, which can be adjusted according to the different materials you spot weld. 1-3 gear mobile phone battery, 3-6 gear 0.1mm nickel plate, 6-11 gear 0.12-0.15 nickel plate. Charging once can spot weld more than 200 times.
Multiple Protection Measures for Safe Use: This is a mini handheld spot welding machine. Although it is small, there are many protection measures, including built-in high-quality polymer battery, overcharge protection, temperature protection, short circuit protection, battery temperature abnormal alarm and spot welding disconnection function, as well as low battery voltage alarm. Ultra low power consumption and longer standby time.
Source manufacturer: We are the source manufacturer of AWithZ brand H1 spot welding machine. We have our own R&D team, and if there is a problem with your product, we can directly have a professional R&D team to solve the problem. You purchased our AWithZ products from our AWithZ flagship store, and we provide lifelong professional answers and maintenance services. Our packaging includes a handheld spot welder, 2-meter nickel plated sheet, 1 piece of frosted paper, 1 Type-c charging cable, and a manual. Our packaging is very exquisite, making it a very worthwhile gift for your loved one who loves battery DIY and friends.
Upgraded Spot Welder: Features an 11000mAh battery and charging design; Fully charges in 3-5 hrs with Type-C cable; Welds thousands of points on a full charge; Uded for 0.1-0.15mm nickel sheets, ideal for battery packs (Note: Not for 0.2mm nickel strips)
80 Adjustable Power Levels: Seesii SE-002 mini battery spot welder with 80 adjustable power levels; Fine-tune between 1-8 and 1.1-5.4-8.0 levels for precise welding; Delay time can be adjusted from 1-5 seconds, making it useful for beginners
LCD Visible Screen Display: Our spot welder for battery designed with a colorful LCD screen; Displays remaining battery, delay time, temperature, and gear level; Monitor working conditions at a glance for a safer, more efficient welding practice
Intelligent and Safe: The 18650 spot welder kit features upgraded chip for convenient operation; The spot welder will automatically stops when temperature exceeds 60℃/140°F to prevent damage. Note: Practice several times to find the right welding strength
Wide Application: The mini spot welder is mainly used in the welding of nickel sheets of battery, which can be used for spot-welding cylindrical lithium batteries such as 18650/21650 and etc, nickel-metal hydride /cadmium nickel batteries and etc
Product Details
Brand:
Seesii
Model #:
LI58USCP5B0002US
Size:
Medium
Color:
80 Gears 11000m-ah Black
Dimensions:
6.4960629855 X 3.543307083 X 1.574803148 inches (Length X Width X Height)
Price:
$77.39
Spot Welder, Seesii 11000mA-h Battery Spot Welder with LCD Screen Upgraded Enhanced 80 Gears Adjustable Portable Mini Spot Welder with 2x5M Nickel Sheet & 4X4 Holder For Making Battery Packs
Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
6 Gears and 2 Modes Adjustable: This spot welder offers 6 adjustable power levels in a 1-6-1 cycle; Press the button to increase the output gear, indicated by the red light; Switch easily between automatic and manual modes; Ideal for beginners
Rechargeable Battery and Indicator Light: The mini spot welder built-in 5000mAh rechargeable battery; Welds thousands of points after a 3-hour full charge; Equipped with a power indicator light, ensuring optimal performance when battery is above 50%
Safe to Use: Durable anodized, fire-resistant materials; 2mm copper strip ensures low resistance and high overcurrent capacity; Single MOS tube provides 650A continuous, 1000A peak current protection against overcharge, discharge, and overheating
Welding Pen Included: Gold-plated terminal welding pen with excellent conductivity and low contact resistance; 40cm length for greater flexibility
Metal File Included: Comes with a separate metal file for maintaining the welding pen tip, ensuring optimal welding performance. Sharpen the pen if black spots develop or performance declines to restore optimal welding effectiveness
Product Details
Brand:
Seesii
Model #:
58USH1725BNEW03
Size:
6 Gears
Color:
Black
Dimensions:
7.086614166 X 3.543307083 X 1.181102361 inches (Length X Width X Height)
Price:
$51.99
Battery Spot Welder, Seesii 6 Gear Adjustable Portable Spot Welder, 5000mA-h Mini Spot Welding Equipment with 5m Sheets and 4X4 Holders for 0.1/0.15mm Nickel Strip Welding and Making DIY Battery Packs
Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
Widely Used Spot Welder: With one of our battery spot welder, you can regain your life by replacing damaged electronic devices with batteries (such as handheld drills), saving you money and protecting the environment. You can also build battery packs, such as electric bicycle battery packs, 18650 battery packs, etc. You can also make a hook on a metal product and have many other uses
Upgrade of Spot Welder Function: Increase the number of continuous spot welding times. We can continuously spot weld twice, allowing the spot welding machine to weld thicker materials, allowing you to use a wider range
High Capacity Battery: Our battery spot welder has a high capacity of 11000mAh, and charging only takes 3 and a half hours. The spot welding machine has 99 adjustable gears, suitable for different materials, such as spot welding mobile phone batteries with gears ranging from 1.0 to 3.9, materials with thicknesses ranging from 0.1 to 0.15 ranging from 4.0 to 7.0, and materials with thicknesses ranging from 0.15 to 0.25 ranging from 7.1 to 9.9
Large LCD Screen: 1.5-inch large LCD screen, making it easier to see the content on the screen clearly and clearly. It has a large remaining battery mark, temperature, gear, trigger time, and continuous spot welding times
Exquisite Packaging: Our spot welding machine packaging products include a spot welder, 2M nickel plated sheet, 50cm Type-c cable, 40cm pair of spot welding pens, a piece of frosted paper, and a complete set of spot welding preparations. All you need to do is prepare your welding battery, and you can enjoy the joy of DIY. A great gift for your husband, boyfriend, and friends who love DIY batteries
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