SeeSii Battery Spot Welder Review

The SeeSii Battery Spot Welder is a powerful tool. It’s designed for making battery packs. This spot welder boasts an 11000mAh capacity. It ensures long-lasting performance. The LCD screen provides clear information. Users can easily monitor settings. This makes it a great mini spot welder.

This upgraded SeeSii welder offers enhanced adjustability. It features 80 gears. Users can fine-tune welding parameters. This allows for precise control. The portable design makes it convenient. You can take it anywhere. This spot welding machine is highly versatile. It comes with two 5-meter nickel sheets. Four 4×4 holders are also included.

SeeSii Battery Spot Welder

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Building battery packs becomes simple with this device. The included accessories are helpful. Nickel strips are essential for connections. The holders keep cells secure. This battery spot welder kit provides everything needed. It’s ideal for DIY enthusiasts. Professional users will also find it valuable. The SeeSii is a reliable spot welding solution.

Furthermore, the 11000mA-h capacity means extended use. No frequent recharging is needed. The 80-gear adjustment ensures perfect welds. This prevents damage to batteries. The LCD screen improves user experience. It displays crucial data. This portable spot welder is a smart investment. It simplifies complex tasks.

In conclusion, the SeeSii is a top-tier battery spot welder. Its features cater to various needs. The large battery capacity is a plus. The extensive gear adjustment is beneficial. The included accessories add value. This mini welder is highly recommended. It’s perfect for all your battery pack building projects. It’s a premium welding tool.  Read more…

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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

$32.99 @ Amazon.com (Save 34%)

Product Description

Compact Integrated Design: The SeeSii handheld battery spot welder features a fully integrated design, seamlessly combining the welding pen and power unit into a single compact form factor. Engineered for one-handed operation, it eliminates the need for external cables or connections, making it ideal for mobile applications, home workbenches, or confined spaces

Versatile Battery Welding Capability: This lithium battery spot welder supports a wide range of cell types, including 18650, 26650, 32650 lithium cells, as well as NiMH and Ni-Cd batteries. It is compatible with 0.1–0.2mm nickel-plated, stainless steel, and iron sheets, making it perfect for DIY battery pack assembly and electronic repair projects

80-Level Adjustable Power: Featuring 80 selectable power levels with dual-pulse output technology, this welder offers both automatic and manual welding modes to adapt to diverse project requirements. High-temperature resistant cables ensure stable performance during continuous use

Fast Type-C Charging: Equipped with a 5000mAh rechargeable battery, it delivers up to 800A of output current and supports over 800 welds per charge. The Type-C charging interface enables rapid, efficient recharging to minimize downtime

OLED Display with Integrated Safety Features: The SeeSii mini spot welder is equipped with an OLED screen that displays real-time parameters including mode, power level, preheat status, time delay, and welding progress. Built-in safeguards protect against overcurrent, overcharge, and low voltage, ensuring safe and reliable operation

Product Details
Brand: Seesii
Model #: SE209
Price: $32.99 (Save 34%)
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 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)


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%)

Product Description

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

Product Details
Brand: Seesii
Model #: SEE-08
Dimensions: 1 X 1 X 1 inches (Length X Width X Height)
Price: $64.99 (Save 19%)
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)

SEESII SE-209 Spot Welder and Battery Tester Combo: Handheld Mini Battery Spot Welder for 0.1-0.2mm Nickel, Portable Battery Checker for AA AAA C D 9V


SEESII SE-209 Spot Welder and Battery Tester Combo: Handheld Mini Battery Spot Welder for 0.1-0.2mm Nickel, Portable Battery Checker for AA AAA C D 9V

$40.99 @ Amazon.com

Product Description

All-in-One Combo for Welding & Testing: The SEESII SE-209 battery spot welder and battery tester checker offers a portable, integrated solution for both battery welding and power level diagnostics; eliminates the need for separate tools

Integrated & Portable Structure: This spot welder features a handheld design with built-in welding pen and power module; compact and lightweight build enables single-hand operation and easy portability, making it ideal for home repairs, workshop use, or field work

Long-Lasting Battery with Fast Charging: The SEESII SE-209 battery welder comes with a built-in 5000mAh high-capacity battery; supports extended usage for up to hundreds of welds per charge and features USB Type-C fast charging to reduce downtime and keep projects moving efficiently

80-Level Adjustable Welding Output: This spot welder for lithium batteries supports 80 adjustable gear levels for fine power control and provides both auto and manual welding modes; precisely welds 0.1–0.2mm nickel sheets and various battery types including 18650, 26650, 32650, NiMH, and Ni-Cd; ensures clean, consistent welds tailored to each project

Quick Digital Battery Testing with LCD Display: The integrated battery tester features an easy-to-read LCD display to quickly check the power level of AA, AAA, C, D, 9V and 1.5V batteries; powered by the battery under test, it eliminates the need for additional power sources

Product Details
Brand: Seesii
Model #: SE-209TH
Price: $40.99
SEESII SE-209 Spot Welder and Battery Tester Combo: Handheld Mini Battery Spot Welder for 0.1-0.2mm Nickel, Portable Battery Checker for AA AAA C D 9V

Seesii Dual Farad Spot Welder, 250 Gears Adjustable 3000F Capacitor Battery Spot Welder with 1.8'' LCD Display,Portable Spot Welder for 0.1-0.3mm Nickel Strip Welding, Ideal for Battery Pack Making


Seesii Dual Farad Spot Welder, 250 Gears Adjustable 3000F Capacitor Battery Spot Welder with 1.8

$119.98 @ Amazon.com (Save 29%)

Product Description

High-Power Welding Precision: This SEESII SE-223 battery spot welder delivers up to 1400A from 3000F supercapacitors; provides stable, high-energy output for spot welding 0.1-0.3mm nickel strips on 18650, 26650, 32650, NiMH, and Ni-Cd cells; ideal for battery pack building and precision

Precision Control with LCD Screen: This spot welder for lithium batteries offers 250 adjustable power levels in 0.1 increments; fine-tunes settings via a 1.8-inch LCD display; accommodates different nickel thicknesses and battery types for consistent, professional-grade welds

Flexible Dual Operation Modes: Designed as a professional-grade battery spot welder, it supports automatic trigger mode and manual foot pedal mode; allows hands-free welding or precise control depending on task; optimizes workflow when working with varied battery assemblies

Smart Cooling & Safety Circuitry: This advanced spot welder features a built-in power balancing circuit and intelligent fan control; protects internal capacitors and extends the life of your battery welder by preventing overheating and reducing mechanical wear

Durable Aluminum Alloy Build: Made with aviation-grade aluminum for superior heat dissipation and impact resistance; compact and portable design suits on-the-go use in battery welding, electronic assembly, and DIY projects

Product Details
Brand: Seesii
Model #: ‎SE301PRO
Size: Medium
Color: Black
Dimensions: 7.87401574 X 7.87401574 X 7.87401574 inches (Length X Width X Height)
Price: $119.98 (Save 29%)
Seesii Dual Farad Spot Welder, 250 Gears Adjustable 3000F Capacitor Battery Spot Welder with 1.8'' LCD Display,Portable Spot Welder for 0.1-0.3mm Nickel Strip Welding, Ideal for Battery Pack Making

Upgraded Portable Spot Welder with LCD Screen, Seesii 80 Gears Adjustable Mini DIY Battery Spot Welder for Battery Plate Welding, Built-in 7500ma-h Battery, Nickel Strip & USB Charging Cable

Upgraded Portable Spot Welder with LCD Screen, Seesii 80 Gears Adjustable Mini DIY Battery Spot Welder for Battery Plate Welding, Built-in 7500ma-h Battery, Nickel Strip & USB Charging Cable

$54.99 @ Amazon.com

Product Description

Upgraded LCD Screen Design: This DIY battery spot welder machine with a colorful LCD screen; Displays remaining battery, delay time, temperature, and gear level; Easily monitor working conditions for safer, more efficient spot welding

80 Gears Adjustable: This mini spot welder equipment with 80 adjustable power levels; Fine-tune between 1-8 and 1.1-5.4-8.0 gears for precise welding, ensure the welding more precise

7500mAh Rechargeable Battery: Seesii portable spot welder with built-in 7500mAh high-rate battery; Fully charges in 3 hours with Type-C cable; Capable of welding thousands of points on a full charge; Also the mini welder tool is capable of charging your phone

Portable Design with 40cm Welding Pen: Features a gold-plated welding pen with high-temperature wires; Offers fine conductivity and torsional resistance; Compact design for easy portability; Ideal tool for spot welding tasks

Wide Application: Ideal for welding nickel sheets on cylindrical batteries, NI-MH batteries, and nickel-cadmium batteries like 18650; This digital spot welding machine is suitable for DIY and professional use

Product Details
Brand: Seesii
Model #: SE-001
Color: 80 Gears With Screen
Dimensions: 7.086614166 X 3.543307083 X 1.181102361 inches (Length X Width X Height)
Price: $54.99
Upgraded Portable Spot Welder with LCD Screen, Seesii 80 Gears Adjustable Mini DIY Battery Spot Welder for Battery Plate Welding, Built-in 7500ma-h Battery, Nickel Strip & USB Charging Cable

Seesii Spot Welder and Heat Gun Kit: 10080W Power Spot Welding Machine with 3000F Capacitors & 999 Gear for 0.1-0.5mm Nickel Plated Strips, 350W 2-Temp Settings Mini Heat Gun for Battery Packs


Seesii Spot Welder and Heat Gun Kit: 10080W Power Spot Welding Machine with 3000F Capacitors & 999 Gear for 0.1-0.5mm Nickel Plated Strips, 350W 2-Temp Settings Mini Heat Gun for Battery Packs

$189.99 @ Amazon.com (Save 37%)

Product Description

All-in-One Battery Spot Welder and Heat Gun Kit: Seesii spot welder and heat gun kit provides a comprehensive solution for spot welding battery packs and shrinking PVC. The ultimate battery spot welder and mini heat gun combo, designed for creating perfect batte ry packs with precise results.

Stable and Powerful Performance: Featuring 1500 F dual farad capacitors, 1800A high current, and 10080W max pulse energy, the spot welding machine delivers powerful and stable welding performance. The 350W fast heat hot air gun tool offers dual temperature settings (LOW 400°F (200°C) and HIGH 670°F (350°C)) for versatile applications.

Maximum Flexibility: Switch between Auto mode for fast, effortless welding or Pedal mode for more independent and controlled operation. Seesii battery spot welder handles nickel-plated 0.5mm, pure nickel 0.3mm, copper 0.15mm, and steel 0.3mm, and offers 999 GEAR settings, so you’ll always have the power needed for any project.

Perfect for DIYers and Professionals: Whether you're a DIY enthusiast or a professional in a small workshop, Seesii Spot Welder Kit provides everything you need for battery spot welding, repairing metal, and building custom battery packs. The 2.4" LCD screen provides clear current display, and the 5-minute quick charge ensures you're always ready to tackle your projects.

Comprehensive Kit for Every Need: Seesii Spot Welder Kit comes with a complete set of tools, including the spot welder, heat gun, PVC heat shrink wrap, 640mm welding pen, nickel strip*2, spare copper tips*4, battery holders*2, diamond file, foot pedal switch, charger, and a user manual. Everything you need for welding, repairing, and building battery packs is included, so start working right out of the box.

Product Details
Brand: Seesii
Model #: SE-208
Dimensions: 8.267716527 X 5.118110231 X 3.7401574765 inches (Length X Width X Height)
Price: $189.99 (Save 37%)
Seesii Spot Welder and Heat Gun Kit: 10080W Power Spot Welding Machine with 3000F Capacitors & 999 Gear for 0.1-0.5mm Nickel Plated Strips, 350W 2-Temp Settings Mini Heat Gun for Battery Packs

Spot Welder, Seesii Farad Capacitor Battery Spot Welder 3000F 120 Gears Adjustable Capacitor Energy Storage Portable Spot Welder, Support 0.1-0.3mm Nickel Strip Spot Welding for Battery Pack Making


Spot Welder, Seesii Farad Capacitor Battery Spot Welder 3000F 120 Gears Adjustable Capacitor Energy Storage Portable Spot Welder, Support 0.1-0.3mm Nickel Strip Spot Welding for Battery Pack Making

$149.98 @ Amazon.com

Product Description

Operation Tips: Avoid prolonged high-frequency/high-power operation to prevent overheating; After 30 minutes of continuous use, pause to cool the welder and recharge it fully; This maintains welding precision and extends the welder's service life

Welding Capability: SE202 Farad Capacitor Spot Welder, equipped with dual supercapacitors, enables effortless welding of 0.1-0.25mm thick nickel-plated sheets; When fully charged, the spot welder is capable of welding 0.3mm nickel-plated electrodes under standard operating conditions

Advanced Spot Welder: Powered by two imported Farad capacitors and a high-performance MCU; Features automatic mode, power adjustment, delay setting, and temperature monitoring; Avoids circuit interference and tripping issues

120 Adjustable Levels: Spot welder with 120 adjustable power levels; Easily fine-tune by rotating the button (0-120); Ensures precise welding accuracy for optimal results. The more precise the adjustment, the better the spot welding effect

Innovative Design: Newly designed spot welders machine will display a progress bar on the screen during spot weld mind you the welding process. And comes with 4 welding needles, you can detach and change the spot welder pen easily

Intelligent and Safe Operation: Utilizes capacitor energy-gathered pulse technology and low power consumption; Supports 12 hrs of continuous welding without overheating; Requires initial 20 min charge before use, Spot weld when the voltage exceeds 5V

Product Details
Brand: Seesii
Model #: LI58USDYL0061
Size: 3000F
Color: As Shown
Dimensions: 9.6456692815 X 7.086614166 X 2.755905509 inches (Length X Width X Height)
Price: $149.98
Spot Welder, Seesii Farad Capacitor Battery Spot Welder 3000F 120 Gears Adjustable Capacitor Energy Storage Portable Spot Welder, Support 0.1-0.3mm Nickel Strip Spot Welding for Battery Pack Making

Seesii Handheld Welder,110V 120A Portable Welding Machine with True Color Auto Darkening Welding Goggles and Welding Chipping Hammer, Suitable For 3/64"-1/8" Welding Rods, Portable ARC Welder Gun


Seesii Handheld Welder,110V 120A Portable Welding Machine with True Color Auto Darkening Welding Goggles and Welding Chipping Hammer, Suitable For 3/64"-1/8" Welding Rods, Portable ARC Welder Gun

$98.99 @ Amazon.com

Product Description

PORTABLE HANDHELD WELDING MACHINE: The SeeSii handheld welder measures is 10*10 inch, weighs only 3.9 pounds. compact and portable design makes it easy to use in a variety of work environments. It is great for aerial work, which can be easily operated with one hand.

SUPPORTS MULTIPLE RODS SIZES : This portable welder machine fit for 3/64″- 1/8″(1.2-3.2mm) welding rods. Support one click quick replacement of welding rods. This Stick welder ideal for E6011, E6013, E6014, E7018. Easily weld stainless steel, mild steel, iron and other metal materia.

SMART IGBT INVERTER TECHNOLOGY: Hand Held Welder utilizes IGBT inverter technology, which improves the welder's current stability and energy efficiency. The technology also simplifies the welding process, resulting in smoother arc initiation, less spatter, and more stable and reliable performance. Built-in 360° Cooling Technology and specific overheat protection, effectively protect the internal circuit of the welding machine from damage and ensure safe and stable use.

20-120 Amp Welding Output: Come with 20-120 Amp welding output adjustable, simple knob design, 6 variable current adjustment. Accurate current output make the welding work easier and the welding effect is more perfect

Complete Welding Accessories: In this package, will get 1*handheld welder machine, 1*Ground Clamp, 1* Auto Darkening Welding Goggles, 1*Welding Chipping Hammer, 20 *Welding Rod and 1*toolbox. Meet all your needs in welding.

Product Details
Brand: Seesii
Model #: FA209
Color: Black
Price: $98.99
Seesii Handheld Welder,110V 120A Portable Welding Machine with True Color Auto Darkening Welding Goggles and Welding Chipping Hammer, Suitable For 3/64"-1/8" Welding Rods, Portable ARC Welder Gun

Battery Spot Welder, AWithZ 1.5" LCD Screen Recyclable 11000mAh Spot Welder, 99 Gears Adjustable Battery Welder, Mini Spot Welder for 18650 Battery (11000mAh)


Battery Spot Welder, AWithZ 1.5" LCD Screen Recyclable 11000mAh Spot Welder, 99 Gears Adjustable Battery Welder, Mini Spot Welder for 18650 Battery (11000mAh)

$65.99 @ Amazon.com

Product Description

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

Product Details
Brand: AWithZ
Model #: 11000mAh
Price: $65.99
Battery Spot Welder, AWithZ 1.5" LCD Screen Recyclable 11000mAh Spot Welder, 99 Gears Adjustable Battery Welder, Mini Spot Welder for 18650 Battery (11000mAh)

Spot Welder, Upgraded 11000mAh Battery Spot Welder with LCD Screen, 80 Gears Portable Mini Spot Welder with Long Spot Welding Pen, Nickel Tapeand USB Charging


Spot Welder, Upgraded 11000mAh Battery Spot Welder with LCD Screen, 80 Gears Portable Mini Spot Welder with Long Spot Welding Pen, Nickel Tapeand USB Charging

$32.99 @ Amazon.com

Product Description

✔ Upgraded Spot Welder: 11000mAh battery, power-bank design with Type-C cable, Agoal spot welder continuously welds thousands of points on a full charge and can be fully charged within 3-5 hours. It’s used for 0.1-0.3mm nickel strips, ideal for battery pack

✔ Visible OLED Display: This battery spot welder has visible colorful OLED screen, you can clearly see the charging status, remaining battery, temperature, delay time and gear levels to make sure a more easier and safer working condition. It will automatically stop when temperature exceeds 60℃/140°F to avoid damage

✔ 80 Adjustable Power Levels: Fine-tune between 1-8 and 1.1-5.4-8.0 levels for precise welding, our small spot welder has 80 levels of output power, the delay time can be adjusted from 1 to 5 seconds, very friendly for beginners

✔ 40cm Welding Pen & Portable Design: The plated welding pen consists of multiple strands of high temperature wires with fine conductivity, torsional resistance ability and low contact resistance. Compact size makes it easy to carry

✔ Wide Application: This mini spot welder is mainly used in the welding of nickel sheet of battery, which can be used for spot-welding cylindrical lithium batteries like 18650/ 21650, nickel-metal hydrude/cadmium nickel batteries, etc. If you have any questions within 60 days, you will get a replacement

Product Details
Brand: AGOAL
Model #: AGOAL2023061
Size: Large
Dimensions: 6.5 X 3.54 X 1.57 inches (Length X Width X Height)
Price: $32.99
Spot Welder, Upgraded 11000mAh Battery Spot Welder with LCD Screen, 80 Gears Portable Mini Spot Welder with Long Spot Welding Pen, Nickel Tapeand USB Charging

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