SUNKKO S788H-USB Precision Pulse Spot Welder Review

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

$56.99 @ Amazon.com

【Double 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

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

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

$59.99 @ Amazon.com

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.

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, Battery Welder With 1.8" LCD Screen, 99 Gears Adjustable Smart Dual Pulse Spot Welder, Mini Spot Welding 0.1MM-0.25MM for Mobile Phone Battery Repair, Nickel Strip, Battery

$49.99 @ Amazon.com

【 Precision Adjustment | 99 Adjustable Power Levels】The battery spot welder machine has 99 adjustable gears, suitable for different materials for precise welding. It supports welding nickel-plated sheets (0.1-0.25mm), 18650 and 26650 lithium batteries, as well as mobile phone batteries and nickel-metal hydride batteries. It is small and portable, easy to carry.

【Dual Protection | Smart Temperature Control 】The spot welder advanced Contex-MO core 32-bit intelligent processor + temperature control sensor can achieve accurate and efficient output control and intelligent temperature control protection. When the system detects that the temperature is higher than 60℃/140°F, it will stop charging the internal small battery and turn off the spot welding function.

【Advanced Tech | Dual Pulse Welding】Double pulse spot welding technology, the red copper spot welding pen is composed of multiple strands of high temperature wire, with good conductivity, strong torsion resistance and low contact resistance. The battery spot welder head of welding pen is detachable. There is no need to replace the entire welding pen, saving the cost of use.

【Smart Display | 1.8" Color LCD】This battery welder is equipped with a clear and visible color 1.8-inch large LCD display screen, you can clearly view the charging status, power, temperature, times and gear position, ensuring an easier and safer working environment.

【Multi-Functional | Built-in Power Bank】This mini welder is mainly used for battery nickel sheet welding, the back has a built-in stand, which makes it easier to view and adjust parameters. The portable welder built-in 5000mAh battery, power-bank design, it has a built-in USB 5V 3.1A output, which can charge USB devices such as mobile phones.

Battery Spot Welder, Battery Welder With 1.8" LCD Screen, 99 Gears Adjustable Smart Dual Pulse Spot Welder, Mini Spot Welding 0.1MM-0.25MM for Mobile Phone Battery Repair, Nickel Strip, Battery

SEESII 8000W Spot Welder: 2025 Upgraded 0.1-0.3mm Battery Spot Welder with Dual Pulse Output, 10-90 Gears Adjustable Foot Pedal Operated Portable Spot welder for Making DIY Battery Packs (SEE-08)

$64.99 @ Amazon.com (Save 19%)

Improved 0.1-0.3mm battery spot welding machine: The improved spot welding machine adopts dual pulse output and pedal welding mode, which can easily weld 0.1-0.3mm thick nickel plates and complete welding work easily and efficiently. The welding points are beautiful and elegant. It can be used for spot welding of batteries, hardware, and electronic components

Save time and money: The 8000W high-performance battery spot welding machine has excellent performance and long lifespan. The spot welding equipment controls two ultra-high performance batteries, emits precise pulse energy through a program with a built-in single-chip microcomputer, and generates high temperature in a very short time. After rapid cooling, weld the nickel strip and battery together to complete spot welding

LCD display: The battery voltage level is a key factor affecting the spot welding effect. Our spot welding screen can display the internal voltage of the product in real time, which is very convenient for you to check and charge in a timely manner. The product should be fully charged before its first use, and charged when the screen voltage is below 7.3V

Easy to operate: This spot welding machine is compact and lightweight, saving space at home. You can easily and quickly transport your spot welding machine to various application places. Just press the foot switch, the red light will flash rapidly 3 times, and then output power once to end the welding

Tips for Beginners: 1. After receiving the product, please charge it and practice multiple times to find the correct spot welding strength; 2. Do not touch the clamp of two pins during use, as this may cause the protective tube inside the spot welding equipment to explode and damage the spot welding equipment

Widely applicable: Spot welding machines with high output power can be used to connect nickel bars of batteries, or spot weld iron plates and stainless steel plates. It is also suitable for rapid welding of 0.1-0.3mm nickel plated steel plates and 0.1mm pure nickel plates; It is very suitable for manufacturing battery packs and technical maintenance

SEESII 8000W Spot Welder: 2025 Upgraded 0.1-0.3mm Battery Spot Welder with Dual Pulse Output, 10-90 Gears Adjustable Foot Pedal Operated Portable Spot welder for Making DIY Battery Packs (SEE-08)

Freenove Portable Spot Welder with Colorful Screen USB Output, Adjustable Handheld Mini Machine, Lithium Battery Plate Welding, 0.1-0.15mm Nickel Strip

$39.95 @ Amazon.com

Automatic trigger -> Automatic welding (after a short delay) when both pens touch the material.

Efficient operation -> Touch the material with the two pens again for the next welding.

Preheating treatment -> Preheat the material before welding to improve the welding effect.

Adjustable -> Multiple parameters can be easily adjusted by pressing the two buttons on the host.

USB Output -> This portable spot welder also serves as a power bank. Battery capacity: 5000mAh.

Freenove Portable Spot Welder with Colorful Screen USB Output, Adjustable Handheld Mini Machine, Lithium Battery Plate Welding, 0.1-0.15mm Nickel Strip

Battery Spot Welder, AWithZ Handheld Spot Welder 11 Gear Adjustable, Automatic and Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets, Iron (Black-H1)

$29.99 @ 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 (Black-H1)

Jewelry Spot Welder Machine, 110V Portable Pulse Sparkle Spot Welder, 600W 80A Electric Spot Welder with Foot Pedal, Adjustable Permanent Jewelry Welder Kit for Rapid Welding of Gold Silver Iron

$126.99 @ Amazon.com (Save 9%)

【High Working Efficiency】 Our jewelry spot welder has a power of 600W, which can be used for welding metal with a thickness of 0.5-1.5mm. Also, the welding power is flexibly adjusted according to different materials and sizes, meeting your various needs.

【Easy to Carry】 This spot welder measures 10.03*9.84*5.11 inches and weighs 11.13 pounds, and it has a portable plastic handle on top, making it convenient for you to carry when you go out to work.

【Two Working Modes】 Depending on the specific workpiece and your operation habits, the tabletop base to hold the tungsten needle or handheld torch to hold the tungsten needle is your choice.

【Simple Operation】 Fix the tungsten needle by using the tabletop base or the hand-held welding gun, and hold the welding material by means of a tweezer. Then lightly press the pedal switch to complete the smooth, firm, and efficient welding.

【Wide Application】 This jewelry spot welder can be used for rapid welding of gold, K-gold, silver, iron, etc in jewelry repair stores, jewelry shops, jewelry industries, personal studios, etc, It also can be used for welding metal with a thickness of 0.5-1.5mm.

Jewelry Spot Welder Machine, 110V Portable Pulse Sparkle Spot Welder, 600W 80A Electric Spot Welder with Foot Pedal, Adjustable Permanent Jewelry Welder Kit for Rapid Welding of Gold Silver Iron

High Power Battery Spot Welder，Pulse spot welding machine handheld small, home adjustable portable 18650 lithium battery diy kit nickel sheet automatic contact（NO Power）

$28.99 @ Amazon.com

【Precision Control at Your Fingertips】Experience unparalleled precision with our 0-199 adjustable settings, ensuring perfect welds every time. The audible buzzer alerts you during welding, keeping you informed and in control. Perfect for DIY enthusiasts and professionals alike.

【Versatile Power Options】 Effortlessly power your welding projects with a 9-12V supply, including car batteries (12V, 20Ah+) or innovative 4-6 series supercapacitors (9-11V). This versatility ensures you're never left without a welding solution.

【Dual Pulse Mode for Precision:】Switch between single and double pulse settings for ultimate control over your welds. The advanced technology enhances both precision and quality, making it an essential tool for any workshop.

【Intelligent Auto & Manual Modes】Choose between automatic trigger welding for hands-free convenience or manual mode for precise control. The 5-minute auto-reset feature safely returns to zero, ensuring energy efficiency and safety.

【Portable & Independent Power Solution】Take your welding on the go with our support for standalone 12V power or connect to 2 series supercapacitors (wires ≥ 10mm², ≥ 30cm) for an uninterrupted welding experience. Ideal for remote locations or quick fixes on the spot.

High Power Battery Spot Welder，Pulse spot welding machine handheld small, home adjustable portable 18650 lithium battery diy kit nickel sheet automatic contact（NO Power）

Double Pulse Spot Welding Machine, High-Power Handheld Spot Welder, Adjustable Knob, HD Digital Tube Display, Removable Solder Pin for 0.1-0.3mm Nickel Strip

$100.47 @ Amazon.com

【Powerful Spot Welder】The spot welder can provide powerful power up to 8000W, helping you complete welding work quickly, improve welding efficiency, good performance, and suitable for most welding projects.

【Adjustable Current】The output current of the spot welder can be adjusted by rotating the knob. The larger the value, the higher the output. Adjustable current will help you weld more accurately and stably.

【Rechargeable Battery】The spot welding equipment is equipped with a built-in 9600mAh lithium battery, which can be used for a long time after being fully charged. The power adapter allows you to charge.

【Detachable Soldering Pen】The welder is equipped with a 47cm/18.5-inch long soldering pen, which has good conductivity, low contact resistance, and is more flexible to use. The soldering pen is detachable for easy storage and carrying.

【Wide Application】The spot welder is designed for welding 18650 batteries, and is also suitable for welding electrodes with thicknesses of 0.1mm, 0.15mm, 0.25mm, 0.25mm, and 0.3mm. Very suitable for home use, DIY, maintenance, etc.

Double Pulse Spot Welding Machine, High-Power Handheld Spot Welder, Adjustable Knob, HD Digital Tube Display, Removable Solder Pin for 0.1-0.3mm Nickel Strip

Awgem Battery Spot Welder, Battery Welder 99 Gear Adjustable Handheld Spot Welder with LCD Screen Automatic and Manual Modes Portable Spot Welding Machine for Welding Nickel Strips and Iron

$35.95 @ Amazon.com

Integrated Design: Awgem battery spot welder power supply and welding pen are combined into one, you can weld easily without an external welding pen. The mini welder is designed for one-handed operation. freeing your other hand to hold the nickel strip, making welding a breeze

LCD Digital Display: The Battery Welder comes with a digital display , and its functions include mode selection, gear setting, preheating time, and delay display. Click the SET button to trigger the settings of language, sleep time, screen brightness, etc

Dual Modes and 99 Adjustable Gears: The handheld spot welder adopts allow you to freely choose the output power to meet your spot welding needs; the design of automatic and manual modes increases the flexibility of spot welding, dual pulse output, and more precise welding.Switch between modes effortlessly for seamless welding experiences

Multifunctional Spot Welder: Awgem portable spot welder is very suitable for welding electronic devices that fail due to battery damage and various types of batteries, such as cylindrical batteries, button batteries etc. And support welding nickel-plated sheets, stainless iron sheets or stainless steel sheets, and the solder joints are firm and beautiful

Package List: Awgem Battery Spot Welder include (1)1*Host (2) 2*Copper needle (3) 1*2m nickel roll (4)1*Frosted paper (5)1*Type-Ccharging line

Awgem Battery Spot Welder, Battery Welder 99 Gear Adjustable Handheld Spot Welder with LCD Screen Automatic and Manual Modes Portable Spot Welding Machine for Welding Nickel Strips and Iron