Best 5 Spot Welders Under 300 Review: Sunkko & YaeCCC Welders

Battery Spot Welder, WESTOBiG Portable Handheld Spot Welder Double Pulse 4 Combination Gears Adjustable 5000mAH Spot Welding 0.1MM-0.25MM for Iron/Stainless Steel/Nickel Strip /18650 Battery Pack

$56.99 @ Amazon.com (Save 5%)

🔰【Two Pulses Welding Technology】 Two Pulses Welding Technology has been applied on the swm-10 battery spot welder. Two pulses are released simultaneously during the welding, and one of which cleans the oxide layer on the surface of 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 Function 】 The spot welder is equipped with 2 high rate power A-Grade batteries, and the capacity is up to 5000mAH(real). You could use it to weld thousands of spots ater fully charged. And you could also use it as a power bank to charge you eletronic device such as mobile phone. One device for two uses. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

🔰【 Multiple Adjustable Output& Wide Application】The Battery Spot Welder has 4 combination gear adjustment. You could adjust the output according to your own need. (4 gear adjustment is enough according to our market research.) The welding thickness is 0.1-0.25mm. It can be used to weld nickel sheet, iron sheet, statinless steel sheet, aluminum sheet. And there is a delay time for you to set up. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

🔰【 Brass Spot Welding Pen 】The design of welding pen of SWM-10 is also full of ergonomics design. There is an anti-slip silicone grip on the pen, and the head of welding pen is detachable. If the head is damage after long time using, you don`t need to replace the whole welding pen. And the welding pen is made of brass, solid and endurable! 　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

🔰【Colorful LCD Screen and Safe to Use 】Compared with other spot welders, the swm10 spot welder is more intelligent. Equipped with 1.8 inch LCD colorful screen, it could clearly show 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, etc., you could monitor your welding status more carefully. And there is an built-in intelligent temperature control probe to protect the equipment.

Battery Spot Welder, WESTOBiG Portable Handheld Spot Welder Double Pulse 4 Combination Gears Adjustable 5000mAH Spot Welding 0.1MM-0.25MM for Iron/Stainless Steel/Nickel Strip /18650 Battery Pack

Upgraded Battery Spot Welder, Handheld Spot Welder with 11 Gear Adjustable, Automatic and Manual modes, Portable Battery Welder for 18650 Battery, Nickel Sheets, Iron, Stainless Steel

$30.99 @ Amazon.com (Save 23%)

✅【Upgraded Design】Our battery spot welder is ergonomically designed for more comfortable use. Combine the power supply and the welding pen into one, and it can be easily welded without an external welding pen. Mini design is more convenient to carry. It is a very worthwhile spot welding tool.

✅【11 Adjustable Gears】The spot welder has 11 gears of adjustable output power, with automatic and manual modes, simple operation, adjustable according to different usage habits and materials, making spot welding work easier. 1-3 gear for mobile phone battery, 3-6 gear for 0.1mm nickel plate, 6-11 gear for 0.12-0.15 nickel plate.

✅【Safe and Stable】The battery welder has low power consumption, long standby time, and features overcharge protection, temperature protection, short circuit protection, low voltage alarm, abnormal battery temperature alarm, and disconnect spot welding. It is highly safe to use. With a high-capacity rechargeable battery, it can perform over 200 spot welds on a single charge.

✅【Widely Applicable】Suitable for cylindrical batteries such as 18650/26650/36650, mobile phone batteries, and other electronic devices requiring battery maintenance, saving you costs.

✅【100% satisfactory service 】We have absolute confidence in this upgraded spot welder, which is a great gift for fathers, husbands, boyfriends and DIY enthusiasts. If you have any questions, please feel free to contact us, we will give you a satisfactory reply within 24 hours!

Upgraded Battery Spot Welder, Handheld Spot Welder with 11 Gear Adjustable, Automatic and Manual modes, Portable Battery Welder for 18650 Battery, Nickel Sheets, Iron, Stainless Steel

Battery Spot Welder, AWithZ Handheld Spot Welder 11 Gear Adjustable, Automatic and Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets, Iron, Stainless Steel (2M Nickel）

$49.99 @ Amazon.com

NO Spot Welding Pen------No need for a spot welding pen when going out or at home, handheld spot welder that does not require additional spot welding pens, carry it with you and it's convenient to go anywhere. It combines the built-in power supply and welding pen into one, making it easy to weld without the need for an external welding pen.

Widely Used - Suitable for cylindrical batteries such as 18650/26650/36650, mobile phone batteries, and electronic devices that require batteries. Spot welder can be used for electronic devices that have been damaged due to battery damage, replacing the battery and resuming use (similar to handheld electric drills), saving money and protecting the environment.

Easy to Use - ONLY 2 buttons, our spot welder the buttons are labeled,easy to use. The battery spot welder does not need to leave our palm. Press and hold the power switch button on the side for 2 seconds with your middle finger, press the gear adjustment button on the top with your index finger once, and press and hold for 2 seconds to adjust the automatic or manual mode.

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 - It is a mini handheld spot welding machine, but it has high-quality polymer cells, overcharge protection, temperature protection, short circuit protection, abnormal battery temperature alarm and off spot welding function, and low cell voltage alarm. Ultra low power consumption, longer standby time.

Exquisite Packaging - 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.

Battery Spot Welder, AWithZ Handheld Spot Welder 11 Gear Adjustable, Automatic and Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets, Iron, Stainless Steel (2M Nickel）

Battery Spot Welder,Handheld Spot Welder Battery Welder for 18650 Batter with Nickel,Welding Nickel Sheets, Iron, Stainless Steel,11 Gear Adjustable Automatic and Manual Modes

$49.99 @ Amazon.com

【2-IN-1 Design】:Our handheld spot welder adopts an ergonomic design to make it more comfortable to hold when you use it,Support one-handed operation,combines the power supply and welding pen into in to one, No need external welding pen, more portable lighter and smaller

【Two Modes & 11 Adjustable Gears】:Spot welder has automatic and manual mode for you choose,also 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.

【Powerful Features】：The spot welding machine can be fully charged within 2.5 hours,can be continuously welded more than 300 times.Equipped with remaining power reminders, spot welding overcharge protection, temperature protection, short circuit protection, abnormal battery temperature alarm and automatic shutdown functions, it is easy to understand the condition of the equipment for better welding.

【Widely used】：It is an excellent battery spot welder for 18650/26650/36650 cylindrical batteries, mobile phone batteries and bad battery packs. It can also be used for spot welding of nickel plates, nickel plates and iron plates with a thickness of 0.1-0 or 0.2.Easily save a lot of unnecessary overhead for you.

【Package Includes】：A beautiful high-end box, A handheld spot welder,nickel plate, 1 piece of sandpaper, 1 Type-c charging cable and an instruction manual. We provide service with a two-year warranty and support services that are not satisfied with full refunds

Battery Spot Welder,Handheld Spot Welder Battery Welder for 18650 Batter with Nickel,Welding Nickel Sheets, Iron, Stainless Steel,11 Gear Adjustable Automatic and Manual Modes

Spot Welder, Docreate 30 Levels Adjustable Handheld Spot Welder with LCD Screen, Portable Rechargeable DIY Mini Spot Welding Machine with Nickel Belt and Spot Welding Pen for 18650

$39.99 @ Amazon.com

LCD Visible Screen Design: The portable spot welder with 1.8" LCD display, color display, automatic operation mode, time board temperature control, solder count detection, low battery indication, smart warning, firmware update.

Hight Quality: The spot welder is made of premium aluminum alloy material, with anodic oxidation surface, abrasion resistant, fire-proof and durable in use.

30 Levels Adjustable Output: This spot welder for 18650 battery with 30 levels output power adjustable,with memory function and 5minutes automatic power off function.It also supports 30 levels of delay time adjustment, make the welding more precise and the spot welding effect more perfect.

Intelligent: The spot welding with over-discharge protection, over-voltage protection, over-current protection, short circuit protection and over-temperature protection, can guarantee safety use.

Wide Application:This DIY spot welding machine is suitable for a variety of scenes. The spot welder can be used for spot weld cylindrical lithium batteries, nickel-metal hydride batteries and 18650/26650/32650 batteries, it also can be used to weld less than 0.3mm to other iron, steel, stainless steel materials.

Spot Welder, Docreate 30 Levels Adjustable Handheld Spot Welder with LCD Screen, Portable Rechargeable DIY Mini Spot Welding Machine with Nickel Belt and Spot Welding Pen for 18650

Spot Welder, 11000mAh Battery Spot Welder with LCD Screen Upgraded 80 Gears Adjustable Portable Mini Spot Welder for Battery Plate Welding with With long spot welding pen, nickel tapeand USB charging

$45.99 @ Amazon.com

【Upgraded LCD Visible Screen Design】- Our Battery spot welder is 2023 newly designed with visible colorful LCD Screen, upgraded LCD screen can clearly know the system's internal temperature, charging status, remaining battery, gear level, and time interval of the spot battery welder. The working condition of the product can be understood at a glance through the screen,make your spot welding journey easier and safer.

【80 LEVEL ADJUSTABLE OUTPUT】Our small spot welder has 80 level adjustable output power, which can be adjusted to 1-7 and 1.1-5.4-8.0 levels according to your different needs. Fine adjustment can make the welding more accurate and the spot welding effect more perfect. If you are a beginner, you can adjust the delay time to delay the automatic welding time (1-5s), which is very friendly to beginners.

★【With 40cm Welding Pen & Portable Design】:The gold-plate spot-welding pen consists of multiple strands of high temperature wire,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.

【Battery Spot Welder】:This mini spot welder enhances the battery energy storage capacity to 11000mAh, power-bank design, with type-C charging cable,can be fully charged within 3-5 hours,and it can continuously weld thousands of points after being fully charged.Most importantly, the upgraded spot welder can easily weld 0.1-0.15mm thick nickel sheets, which can help you make a perfect battery packs,(Note:Cannot weld nickel strips with a thickness of 0.2mm).

【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.

Spot Welder, 11000mAh Battery Spot Welder with LCD Screen Upgraded 80 Gears Adjustable Portable Mini Spot Welder for Battery Plate Welding with With long spot welding pen, nickel tapeand USB charging

Battery Spot Welder, Hancaner Handheld Spot Welder 80 Gear Adjustable, Automatic & Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.15mm, Iron, Stainless Steel Sheets

$32.99 @ Amazon.com (Save 10%)

【NO Spot Welding Pen】No need for a spot welding pen when going out or at home, handheld spot welder that does not require additional spot welding pens, carry it with you and it's convenient to go anywhere. It combines the built-in power supply and welding pen into one, making it easy to weld without the need for an external welding pen.

【Multifunctional Battery Spot Welder Pen】This portable welder can be widely used in spots welding cylindrical lithium batteries, nickel metal hydride batteries, and nickel-cadmium batteries, such as 18650/26650/32650, etc. It supports welding 0.1-0.15mm(0.2mm under full battery condition) nickel-plated sheets, stainless iron sheets or stainless steel sheets, with solid and beautiful welding spots.

【80 Gears Adjustable】Dual pulse output, high power output design, 80 gears of output power adjustable, more accurate welding, suitable for continuously welding thousands of points on nickel/nickel-plate sheet.

【Dual Mode Spot Welder】Dual modes selectable, supports automatic and manual mode switching by your needs. The wire is consists of multiple strands of high-temperature wire with high torsional resistance and more sensitive operation.

【OLED Digital Display】Battery spot welder with the OLED color display real-time gear display function. Support system mode display, remaining power display, preheat display, time delay display, welding progress bar gear display.

Battery Spot Welder, Hancaner Handheld Spot Welder 80 Gear Adjustable, Automatic & Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.15mm, Iron, Stainless Steel Sheets

AWithZ Battery Spot Welder, 11 Gear Adjustable Spot Welder, Automatic/Manual Modes Battery Welder for 18650 Battery,Battery Welder Welding Nickel Sheets, Stainless Steel,Building Battery Pack (ABS)

$39.99 @ Amazon.com

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.

AWithZ Battery Spot Welder, 11 Gear Adjustable Spot Welder, Automatic/Manual Modes Battery Welder for 18650 Battery,Battery Welder Welding Nickel Sheets, Stainless Steel,Building Battery Pack (ABS)

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

$77.39 @ Amazon.com

✅【Upgraded Enhanced Battery Spot Welder】: This mini spot welder enhances the battery energy storage capacity to 11000mAh, power-bank design, with type-C charging cable,can be fully charged within 3-5 hours,and it can continuously weld thousands of points after being fully charged.Most importantly, the upgraded spot welder can easily weld 0.1-0.15mm thick nickel sheets, which can help you make a perfect battery packs,(Note:Cannot weld nickel strips with a thickness of 0.2mm).

✅【80 Levels of Adjustable Output】: Our Seesii spot welder SE-002 with 80 levels output power adjustable,it can be adjusted 1-8 and 1.1-5.4-8.0 levels according to your different needs,very fine adjustments can make the welding more precise and the spot welding effect more perfect.If you are a new learner you can adjust the delay time to delay the automatic weld time( 1-5s）, it’s very friendly for the beginner.

✅【LCD Visible Screen Display】: Our spot welder for battery is 2022 newly designed with visible colorful LCD Screen, can clearly know the remaining battery, delay time, temperature and gear level of the spot welder.The working condition of the product can be understood at a glance through the screen,make your spot welding journey easier and safer.

✅【Intelligent and Safe to Use】:The 18650 spot welder kit equipped with the upgraded chip, so that the use of electric welding is more in line with human nature. When the temperature is higher than 60℃/140°F, the spot welder will automatically stop working to avoid damage to personnel or items.Note: After receiving the product, please practice many times to find the right spot welding strength, this is a small battery pack welding machine suitable for beginners and professional welders.

✅【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.Equipped with 1 x spot welder, 2 x 5M nickel strip, 1 x metal file, 1 x USB-c cable, 4x4 battery holder.

🎁【Great Battery Spot Welder】:The upgraded 11000mah spot welder and complete accessories is the nice portable welder for Father, Husband, Boy Friend, DIYer.

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

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

$35.69 @ Amazon.com

🎛️【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.

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