Top 10 Battery Spot Welder

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Last update: 12-07-2026

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1
Battery Spot Welder, Kerpu 18650 Spot Welder Machine Pocket Size with 11 Gears Adjustable,5000mAh Rechargeable Battery,2x2M Nickel Sheet & 4X4 Holder for Making Battery Packs

Battery Spot Welder, Kerpu 18650 Spot Welder Machine Pocket Size with 11 Gears Adjustable,5000mAh Rechargeable Battery,2x2M Nickel Sheet & 4X4 Holder for Making Battery Packs

  • Pocket-sized mini spot welder: Kerpu mini-size battery spot welder CP01. only half the size of other spot welders, easy to carry. designed for welding nickel strips of cylindrical batteries, NI-MH batteries,18650 nickel-cadmium batteries, etc. built-in 5000mAh rechargeable batteries, you can spot welding your battery anywhere anytime.package included complete accessories, it's a great gift idea for fathers, husbands, male friends, and DIY enthusiasts.
  • Supports more precise spot welding mode settings: We have optimized and upgraded the product. the battery spot welder support 11 gears adjustment, support automatic modes. making it easy to make battery packs (support welding thickness of less than 0.12mm of iron, steel, and stainless steel sheets). use the equipped power cord to quickly charge the device, and maintain the battery level at 50% every time, to achieve the best welding effect.
  • Multi-battery application tool: Unlike other plastic shells, our product is made of aluminum alloy, surface anodized, fire-resistant, and drop-resistant.The LED indicator light is very easy to identify the gear adjustment changes, charging status, and battery level changes. easy-to-spot welding cylindrical batteries, NI-MH batteries, and 18650 nickel-cadmium batteries. Note: Do not use too thick nickel foil (such as a thickness than 0.15mm).
  • Pay attention to the details of the product and the safety of use: CP01 built in a 5000mAh rechargeable battery,and our product has passed overcharge protection, safety temperature control protection, load detection, and short circuit detection to protect your safety. In addition, when the product temperature exceeds 60 degrees, the device will pause to avoid battery damage and fire.
  • Equipped with 4M nickel strips and 4 battery brackets: The package includes: 1x 5000mAh pocket-sized battery spot welding machine, 2x spot welding pens (line length 30CM + pen head 9CM), 2x 2M nickel-plated foil (L=2M, W=0.9CM, Thickness=0.1mm), 4X4 battery brackets, 1x Metal file, 1x 1M USB to Type-c charging cable. If you have any questions, please feel free to contact us. Your good experience is important to us!
9.3/10
Editor's Pick
Available at Amazon
2
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

  • 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
9.0/10
Bestseller
Available at Amazon
3
Spot Welder,Kerpu 11000mAh Battery Spot Welder with LCD Screen,70Gear Adjustable with 10m Nickel Strip,4 Battery Holder

Spot Welder,Kerpu 11000mAh Battery Spot Welder with LCD Screen,70Gear Adjustable with 10m Nickel Strip,4 Battery Holder

  • Kerpu Battery Spot Welder. Make The Connection Between Batteries. Continuous And Firm. Lcd Screen Makes You Can View The Parameter More Visually And Conveniently. Built-In 11000Mah Rechargeable Battery. And Equipped Spot-Welding Pen And Nickel Foil To Ensure That Your Smart Devices Are Added Huge Energy Power, And Revitalize It.
  • Multiple Clever Details:①.Reliable battery spot welder perfect for cylindrical batteries:18650/26650/32650.②.Auto trigger: just let the welding penna fully contact the welding surface, then starts welding.③.Equipped with LCD screen, intuitively displayed: Gear, Delay time, and internal temperature.④.Package includes 4m nickel-plated sheet, 4 battery holders.⑤.Welding 0.1-0.2mm nickel-plated/stainless steel sheets.6. As a power bank
  • 70Weld power level: Fine design, makes spot welding more outstanding. If you often need battery packs for your circuit design, this is a very good welder. it has 2 gear function buttons, Gear1 button: Allows you to quickly select the gear (1-8 gears) for fixed welding, Gear2 button: Allows you to finely adjust the gear size (0.1-0.9) for supplementary welding.
  • Pay attention to usage details and safety: Many spot welders need extra power. the spot welder built-in 11000mAh battery, so you can use it anywhere. the welder weighs 540g with a metal material, which will not easily shake when using the product. Built-in multiple protections to protect you and your equipment safety.
  • Can Be a Decent Gift: Package includes 1x battery spot welder (capacity=11000mAh), 2x spot welding pens (line length 30cm + pen head 9cm), Nickel-plated foil (lengt=10m, width=0.9cm, thickness=0.1mm), Metal file, Type c cable (length=1m). which with LCD screen, intuitively displayed: Gear, Delay time, Internal temperature. easy to use, it is a good gift idea for fathers and handmade enthusiasts.
8.9/10
Available at Amazon
4
Battery spot Welder, AWithZ 2 in 1 Handheld Spot Welder with Automatic & Manual Modes, 11 Adjustable Gear for DIY Battery Packs(H1)

Battery spot Welder, AWithZ 2 in 1 Handheld Spot Welder with Automatic & Manual Modes, 11 Adjustable Gear for DIY Battery Packs(H1)

  • Handheld Battery Spot Welder: AWithZ Battery spot welder H1:Inspired by original DIY spot welding, combining the built-in power supply and welding pen into one, making it easy to weld without an external welding pen. welding is completed instantly with minimal damage to the base material, easier and safer. perfect for making battery packs.
  • Supports Auto & Manual 2 modes: Handheld spot welder can easily install electronic components. You can complete spot welding with one hand. The integrated and concise design allows you to easily spot-weld nickel-plated sheets onto battery electrodes, empowering electric devices to new life. our optimized trigger button under manual mode, controlling the welding time more conveniently. (combining the switch and manual trigger button.)
  • Ideal for Battery spot Welderor Repair & Make Batteries Packs: H1 Handheld battery welder with 11 adjustable gears.under full power, Gear 1-3 for repairing chip or mobile phone batteries, and Gear 4-11 for making battery packs( nickel-plated sheets thickness 0.15-0.2mm). helpful for home use, DIY, and repair devices. we pay attention to product safety, using high-quality ABS shells, and built-in mulit protection. protect you and your device.
  • 0.8mm Welding Distance: SC01adopts soldering pen integrated design. eliminating the traditional complicated welding pen connection, reducing current transmission loss. there is no issue with the length of the soldering pen when you welding. we present the welding mouth distance of 0.8mm, no needn't extra adjustments or tests. make your spot welding standardized, and reasonable.( you can use it indoors, outdoors, or in a laboratory)
  • Spot Welding Tips: 1-Ensure the welding pen fully contacts the surface.2-60-degree angle for welding,allows you to quickly become familiar with the welding pen.safety guarantee:built-in multi-protection,like:temperature control. If you encounter any problems, please feel free to contact us. Your good experience is important to us!
8.7/10
Available at Amazon
5
Battery Spot Welder,Handheld Spot Welder with Automatic & Manual Modes,Portable Welder with 11-Level Adjustable,2200mAh Battery,Alumina Brazing Needle,1.3’’ Display for DIY Battery Packs

Battery Spot Welder,Handheld Spot Welder with Automatic & Manual Modes,Portable Welder with 11-Level Adjustable,2200mAh Battery,Alumina Brazing Needle,1.3’’ Display for DIY Battery Packs

  • 【Portable Battery Spot Welder】This spot welder combines power supply and welding pen into one, allowing for easy welding without the need for external power supply or wires, making it more convenient than traditional welding pens. It can instantly complete welding with minimal damage to the base material, ensuring a more stable structure after welding.
  • 【Dual Pulse Spot Welding】Our handheld spot welder uses two electrical current pulses to weld the workpiece during the welding process. The first pulse is used to heat the surface of the workpiece and reduce oxidation, while the second pulse quickly increases the current intensity to form the weld and ensure welding quality. This can improve the stability of the weld, reduce bubbles and distortion, and is more suitable for welding requirements of different materials.
  • 【Automatic and Manual Modes】This portable welder can be adjusted to manual mode, where welding is triggered by a button, or automatic mode, where welding is triggered by contact with the nickel sheet. You can freely choose the mode to use based on the materials and work circumstances of the welding. The automatic mode is more suitable for welding tasks with a single pattern or high demand, while the manual mode is more suitable for precise welding tasks.
  • 【11 Welding Levels】Our battery spot welder features 11 adjustable levels. At full power, levels 1 to 3 can be used for repairing chips or mobile phone batteries, while levels 4 to 11 can be used for welding and creating battery packs with a nickel-plating thickness of 0.3mm or less.
  • 【1.3'' HD Screen】It is also equipped with a 1.3'' screen, which can display battery status alerts, battery surface temperature, remaining power, sleep countdown, spot welding status prompts, spot welding counts, and current mode. Helping you quickly and clearly understand the current usage information.
  • 【Wide Application & Excellent Material】This hand-held welder has a welding tip distance of 0.8mm, requiring no additional adjustments, allowing for standardized welding. It can be used for home welding, DIY parts, and equipment repairs. Its outer shell is made of metal with a frosted texture, providing effective slip resistance and stable durability.
8.6/10
Available at Amazon
6
Spot Welder, Seesii 80 Gears Adjustable Portable Welder with LCD Screen,Built-in 6000ma-h Battery 5m Nickel & 4X4 Holders for 0.1/0.15mm Strip Welding Making Packs, Black
Seesii

Spot Welder, Seesii 80 Gears Adjustable Portable Welder with LCD Screen,Built-in 6000ma-h Battery 5m Nickel & 4X4 Holders for 0.1/0.15mm Strip Welding Making Packs, Black

  • ✅【80 Levels of Adjustable Output】: Our Seesii spot welder SE-003 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.
  • ✅【Upgraded Battery Spot Welder】: This mini spot welder built-in 6000mA-h capacity, 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).
  • ✅【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.It has perfect overcharge, over-discharge, over-temperature and other protection functions. You can use the product with confidence.
  • ✅【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, 1 x 5M nickel strip, 1 x metal file, 1 x USB-c cable, 4x4 battery holder.
  • ✅【Reliable After-sales】:We offer 1 year for this Seesii portable spot welder , If you have any questions about the product, please feel free to contact us.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.
  • 🎁【Great Gifts 】:The mini spot welder and complete accessories is the great gift for Father, Husband, Boy Friend, DIYer.
8.5/10
Available at Amazon
7
Battery Spot Welder, Portable Handheld Spot Welder Double Pulse 11 Gears Adjustable Spot Welding 0.1MM-0.2MM for 18650 Battery Pack/Phone Battery/Nickel Strip/Stainless Steel

Battery Spot Welder, Portable Handheld Spot Welder Double Pulse 11 Gears Adjustable Spot Welding 0.1MM-0.2MM for 18650 Battery Pack/Phone Battery/Nickel Strip/Stainless Steel

  • 【5.0Ah Battery with Type-C Charging】5000mAh battery with 11 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
  • 【Special Spot Welder for Transplanting Battery Cells】Compared to other spot welding machines, our operating platform has no boundaries, and the size of battery cells is not limited. It is suitable for various brands and sizes of mobile phone batteries, and the operating platform is equipped with precise scales. The integrated floating guide rail electrode clip design does not require additional fixtures.
  • 【Free Switching Mode】 Our spot welding machine, the buttons are labeled, supports manual/automatic switching, and can also freely switch between single pen/double pen spot welding, single pen spot welding (for single pen operation, please insert the pen into the contact port of the negative spot welding pen). Manual mode, independently controlling the precision of spot welding. Automatic mode is more hassle free and allows for faster mastery of spot welding machines.
  • 【Enhance the Thickness of Spot Welding to 0.3MM】 Our spot welding machine has 11 gears, suitable for repairing different products and materials. If you want to repair a very thin material in your phone battery, use 1-3 gears, 0.1mm materials, 4-5 gears, 0.15mm materials, 6-7 gears, and 0.2mm materials. Before you officially operate your own product, please practice more and familiarize yourself with our spot welding machine. We will give you a 2M nickel plate as a gift for your practice.
  • 【Packaging and Service】 We understand that there are 40cm long spot welding pens available on the market, and we have customized a 50cm long spot welding pen. Our packaging also includes 1x5000mAh spot welder (Can be used as a power bank), 2x spot welding pen (L=50cm/20In), 2x magnet (fixed battery), 1x2M nickel plate, 1x frosted paper, and 1xType-c charging cable. Exquisite packaging is a great gift for DIY friends and loved ones. If you have any questions, please feel free to consult.
8.4/10
Available at Amazon
8
Portable Spot Welder 9 Gears Adjustable Mini Spot Welder Machine Handheld for DIY Spot Welding Machine with Quick Release Pens & Nickel Strip & USB Charging Cable for Battery Spot Welding Tool
N\P

Portable Spot Welder 9 Gears Adjustable Mini Spot Welder Machine Handheld for DIY Spot Welding Machine with Quick Release Pens & Nickel Strip & USB Charging Cable for Battery Spot Welding Tool

  • Portable welding machine used for nickel welding on cylindrical battery like 18650, NI-MH battery, nickel cadmium battery
  • 9 Gears Adjustable by button, easy to operate, support welding while charging
  • Integrated welding pens with anti-scalding and replaceable welding needles, of good conductivity and low contact resistance
  • 5500mAh Rechargeable Battery, with type-C charging port 5V/2.4A and charging indicator lights, max. output current up to 650A
  • Aluminum alloy body with anodizing finish, resistatn to flame, abrasion and fall
8.4/10
Available at Amazon
9
Hopbucan 1Set 80-Gear OLED Digital Display Spot Welder Dual-Pulse Mobile Phone Battery Cell 18650 Lithium Battery Spot Welder Black

Hopbucan 1Set 80-Gear OLED Digital Display Spot Welder Dual-Pulse Mobile Phone Battery Cell 18650 Lithium Battery Spot Welder Black

  • 4. Double-pulse output, one-handed grip, easy to use
  • 1. Weldable 0.1-0.2mm
  • 2. OLED color display, accurate display of various values at a glance
  • 3. The output power of 80 gears can be adjusted, which can be used in various scenarios, and the welding is more accurate
  • 5. The more general Type-C charging is adopted. It can be without distinguishing between the face being inserted and the welding can be done more than 800 times at a time
8.3/10
Available at Amazon
10
Battery Spot Welder, 11 Gears Adjustable 7500mAh Spot Welder, Automatic and Manual Modes Mini Spot Welder, Spot Welder for 18650 Battery,Build Battery Packs,Repair Ebike Pack(2M Nickle Sheet）

Battery Spot Welder, 11 Gears Adjustable 7500mAh Spot Welder, Automatic and Manual Modes Mini Spot Welder, Spot Welder for 18650 Battery,Build Battery Packs,Repair Ebike Pack(2M Nickle Sheet）

  • Our portable spot welder have perfect overcharge, over-discharge, over-temperature protection functions etc. and double protection performance. A unique overheating protection device automatically switches off the power supply when overheating occurs.
  • Adjustable output of 11 levels, more accurate welding and more stable welding. Automatic and manual mode adjustable, easy to use. Detailed English instruction manual, easier to use.
  • Suitable for 18650 and other cylindrical lithium batteries, nickel metal hydride batteries, cadmium-nickel batteries can be tightly welded. It can also be used for welding iron, steel and stainless steel sheets with a thickness of less than 0.2 mm/0.007 inches on other iron, steel and stainless steel materials. Save time and effort.
  • The welding pen is convenient to use, the length of the welding pen is 40 cm, which makes the operation more flexible. It is oxygen- copper material with low resistance and welding stability.
  • Spot welding machine small design: small size, does not take up space, easy to carry. It might be handy for people who like DIY to have one. Strong, small, lightweight, easy to carry, easy to put in your pocket!
8.2/10
Available at Amazon

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