10 Best Spot Welder Battery of December 2025

• ♀️【Spot Welder for Battery】With easy operation, this mini spot welder provides smooth welding, complete solder joint, and firmly welded. 95% of people use it on cylindrical lithium batteries, like 18650/26650/32650. It also can be used to weld iron, steel, and stainless steel sheets with a thickness less than 0.15mm/ 0.006 inch to other iron, steel, and stainless steel materials.
• ♀️【Upgraded LCD Visible Screen Design】- Our DIY battery spot welder machine is 2022 newly designed with a visible colorful LCD screen, you can know the remaining battery, delay time, temperature, and gear level of the spot welder. You can know all the working conditions of the mini spot welder at a glance through the screen, making your spot welding journey easier and safer.
• ♀️【70 Gears Adjustable & Self Detection Function】- The battery nickel spot welder with 7-level output power-adjustable, 1-8-1 cycle, welding is more precise. If you are are new learner, you can adjust the delay time to delay the automatic weld time( 1-5s）, it‘s very friendly for the beginner.
• ♀️【Intelligent and Safe】- 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, a portable welding machine will automatically stop working to avoid damage to personnel or items.
• ♀️【Rich Accessories】- We have prepared a 2 x 15.5inch long welding pen, 1 x 5M nickel strip，1 x metal file, 1 x USB-c cable, and 1 x Bag for you the equipment that you may need in the spot welder package. The bag can store the machine and welding pen perfectly, which is very suitable for carrying out. Compact size is another reason why people choose it for saving space.

Faiuot

• ✔Multi-purpose - The spot welder can be used to spot weld cylindrical lithium batteries, nickel-metal hydride batteries and 18650/26650/32650 batteries such as cadmium-nickel batteries, and our mobile phone batteries can also be spot welded.
• ✔Adjustable Gears - The spot welding machine has 6 gears that can be adjusted. Different gears are used for different materials. The spot welding materials can be nickel, iron, stainless steel, aluminum, etc. 0.1-0.2 mm in thickness material.
• ✔Large Capacity - The spot welder has a large capacity of 5000 mAh, built-in rechargeable 2 electric power lithium batteries, discharge current >650A, environmentally friendly. Type-C 2A input, it can be fully charged in about 2 hours. We can also use it to charge our other devices.
• ✔Welding Pen - The terminal of the welding pen is gold-plated, which can pass a higher current. The 7mm spot welding special red copper has ultra-low resistance and anti-oxidation. The welding pen has a length of 40cm/16 inches, which is flexible and convenient for us to use.
• ✔Protection Measures - The portable spot welder has perfect overcharge and over temperature protection functions. Its unique overheating protection device automatically cuts off the power when overheating occurs, and it will automatically shut down without any operation for 8 minutes, allowing you to use it more safely.

3goa

• It is recommended to install the product by the people who have basic electrical knowledge and hands-on ability.
• For power input, users need to supply 12V battery power, welding current is about 90A~150A.
• Portable DIY 12V Battery Energy Storage Spot Welder Machine for electronic enthusiasts.
• System voltage: 12V-14.6V (capacity X rate = must be greater than 150A).
• High-Quality. Portable,stable, reliable and durable.

havcybin

• The new-designed battery spot welder is equipped with two super capacitors for energy storage and stable power source for pulse spot welding. Comparing to the traditional AC spot welder, it has no interference to the electric circuit and no more tripping problems. The max pulse welding power can be up to 11.6 KW, ensuring you a reliable welding effect.
• The portable welder has a small size and light weight, allowing for easy transport while still adopting 100-240 V wide-voltage input for use anywhere you need. Comparing to the traditional big size and heavy spot welding machine, it is smaller and lighter, but more powerful and reliable.
• Equipped with the 70B mobile welding pen, 73S handle-push welding arm and ‘AT/MT’ two welding modes, you can finish the welding work easily and efficiently, the welding spot is nice and elegant. The capacitor energy-gathered pulse technology and low power consumption enable you to use the machine for 12 hrs efficient welding work with no heating problems.
• The pulse welding power can be set up conveniently via two adjusting buttons(0-99 range), which is shown directly on the panel LED screen(welding power/capacitor voltage/actual welding current are displayed). The maximum welding energy is 119 J, 0.35mm nickel plated and 0.3mm pure nickel can be easily welded.
• Used in batteries、metal hardwares, electronic components spot welding work

Glitter

• 【Upgraded LCD Screen Spot Welder】Our DIY spot welding machine is newly designed with visible LCD Screen. This spot-welding machine can be used to spot-welding cylindrical lithium batteries, nickel-metal hydride batteries and cadmium nickel battery and etc. You can see the real-time temperature on the OLED display clearly.
• 【70 Gears Adjustable 】This handheld spot welder with 70-speed output power adjustable, welding is more precise and the welding effect is more perfect. It can be used to spot-welding cylindrical lithium batteries, nickel-metal hydride batteries and cadmium nickel batteries and etc. Support welding 0.1-0.2mm nickel sheet and 0.1-0.15mm stainless steel sheet.
• 【7500 mAh Battery & Power Bank Function】This mini spot welder adopts built in 7500mAh high-rate rechargeable battery, which can be fully charged within 3 hours. It can continuously weld thousands of points after being fully charged with max output 650A. And it can be also used as power bank when you need to charge.
• 【40cm Welding Pen 】The gold-plate spot-welding pen consists of multiple strands of high temperature wire with fine torsional resistance ability, making the operation more flexible. 7mm solid copper rod is with fine conductivity and low contact resistance, quickly detachment and easy carrying.
• 【Protection Function】The portable spot welders own perfect over-charge, and over-temperature protection functions. Its unique overheating protection device automatically cuts off power when the overheating occurs, which will be safe for you to use.

Riiai

• 【 LCD Display Mini Spot Welder 】- This mini spot welder for 18650 battery is designed with LCD Screen. You can see the internal system temperature ,welding gears and time interval on the OLED display of the welder.
• 【 11000mA-h Power Bank Function 】- This portable handheld spot welder, built in 11000mA-h rechargeable polymer lithium battery,can be fully charged within 3 hours with 5V/2.1A type c charging port and it can continuously weld thousands of points after fully charged . The battery spot welder can be also used as a power bank for electronic products charging with USB outport .The welding machine will shut off automatically 8 minutes later if without operation.
• 【 80 Gears Adjustable Battery Spot Welder 】- This mini welding machine, with 80 gears precise control output power, can be used to weld different thicknesses of nickel and stainless steel(the maximum output current is up to 650A,support welding 0.1-0.2mm nickel sheet and 0.1-0.15mm stainless steel sheet). The spot welder can be used to weld cylindrical lithium batteries, nickel-metal hydride batteries and cadmium nickel batteries.
• 【 Multiple Protection Functions 】- The welding machine,built in temperature control probe, cuts off power automatically when the overheating occurs.Overcurrent protection, low voltage protection, overvoltage protection, and overtemperature protection make it more safe for you to use.
• 【 Easy to Operation Handheld Battery Welder 】- Long press 3s to turn on/turn off the spot welder, short press to cycle to switch 8 gears, all operations can be quickly and conveniently performed, when it is off, it can be standby for up to one year due to low power efficiency.

B BINGENUO

• Our portable spot welders own perfect over-charge, over-discharge, over-temperature etc protection functions and double protection performance.Unique overheating protection device automatically cuts off power when the overheating occurs.
• Adjustable output power of 6 grades, no need to press, more accurate welding and more stability welding.Automatic and manual mode adjustable, easy to operate.Detailed English instruction manual, easier to use.
• Suitable for 18650 and other cylindrical lithium batteries, nickel metal hydride batteries, cadmium nickel batteries can be welded firmly.It can be also used to weld iron, steel, stainless steel sheets with the thickness less than 0.2 mm/0.007 inch to other iron, steel, stainless steel materials. with it, save your time and effort.
• The welding pen is comfortable to use, the length of welding pen is 16 inches, that makes operation more flexible. It is low resistance oxygen free copper material, welding stability.
• 【Our service】The product package comes with a small file for maintaining the welding pen, a Type-C fast charging cable, and a 5 meter high-quality nickel sheet.In the process of using the spot welder, please feel free to contact us if you have any questions. we will replace or refund for you to ensure that you can have a pleasant shopping experience.

kerpu

• Quality Material - Adjustable spot welding machine is made of aluminum alloy material, welding machine surface is anodized, wear-resistant and beautiful, fire prevention and fall prevention. 2 mm thick pure copper strip, ultra-low internal resistance, increased overcurrent capacity. Welding size: 7*3.5*1 Inchs, weight: 1.2 Ib
• Levels of Adjustable Output - Spot welder adopts micro-USB interface, compatible with mobile phone interface, 5V 2A input full charge for 4 hours.Built-in high rate lithium polymer battery, the maximum output current up to 650A, after full charge can continuously weld thousands of points. 6 levels can be adjusted and Battery spot welder meet the needs of more professional
• Safety Comprehensive Indicator- Portable spot welder machine with output power and residual power indicator, weld machine are 2 output modes: 1.5S timing trigger output and automatic detection solder pen output; The spot welding kit tool has 4 double-color indicator lights, blue indicating remaining power and red indicating output power; Charging indicator: red means charging, blue means full
• 6700 mAh Battery- As a rechargeable mini spot welder, diy spot welder adopts built in 6700mAh high-rate rechargeable battery. So, spot welding fully charged within 3 hours. It can continuously weld thousands of points after being fully charged with max output 650A. Portable welding machine can easily be used continuously for 18 hours. Welding machine has been professionally tested and can be used for more than 8 years
• Intelligent and Safe - The use of upgraded chip, so that the use of electric welding more in line with the human nature. When the temperature is higher than 60¡ã, portable welding machine will automatically stop working to avoid damage to personnel or items. Equipped with 3 kinds of indicator lights, so that you know the welding situation, simple operation. Plus we are 24 hours online, for you to solve the problem. Please don't worry about the after-sales problem

ZHUVATAR

• ★【Upgraded LCD Visible Screen Design】:Our DIY battery spot welder machine is 2021 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.
• ★【80 Gears Adjustable】:This mini spot welder equipment with 80 gears output power adjustable,it can be adjusted 1-8 gears and 1.1-5.4-8.0 gears according to your different needs,very fine adjustments can make the welding more precise and the spot welding effect more perfect.
• ★【Built-in 7500Mah Rechargeable Battery】:Seesii portable spot welder built in 7500mAh high-rate rechargeble polymer lithium battery,with type-C charging cable,can be fully charged within 3 hours, and it can continuously weld thousands of points after being fully charged.What's more, if you need to it charge to your phone,the mini welder tool can be used as a power bank.
• ★【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.
• ★【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.

Seesii

• Our portable spot welders own perfect over-charge, over-discharge, over-temperature etc protection functions and double protection performance.Unique overheating protection device automatically cuts off power when the overheating occurs.
• Adjustable output power of 6 grades, more accurate welding and more stability welding. Automatic and manual mode adjustable, easy to operate. Detailed English instruction manual, easier to use.
• Suitable for 18650 and other cylindrical lithium batteries, nickel metal hydride batteries, cadmium nickel batteries can be welded firmly. It can be also used to weld iron, steel, stainless steel sheets with the thickness less than 0.2 mm/ 0.007 inch to other iron, steel, stainless steel materials. With it, save your time and effort.
• The welding pen is comfortable to use, the length of welding pen is 40cm, that makes operation more flexible. It is low resistance oxygen free copper material, welding stability.
• 【Our service】In the process of using the spot welder, please feel free to contact us if you have any questions. We will replace or refund for you to ensure that you can have a pleasant shopping experience.

kerpu