Welding Machines & Accessories

SeeSii Battery Spot Welder Review

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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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Best Seesii Battery Spot Welder Deals

SEESII Battery Spot Welder: Battery Welder with Visual Display, 3360W Max Power with 1-99 Gears, Copper Tips, Portable Spot Welder for Lithium Battery (DIY, Repairs, Outdoor Use)

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Key Features

  • ✅ Fully Cordless​: Say goodbye to tangled power cords—grab this spot welder and work anytime, anywhere; Note: For optimal performance, fully charge it to 100% before first use; If the product is left unused, please charge it monthly to preserve battery health
  • ✅ Strong Welding Capacity: With a maximum output power of 3360W, the mini spot welder stands out among handheld models; tested to weld nickel-plated sheets up to 0.2mm thick or pure nickel sheets up to 0.15mm thick (Welding quality closely links to battery charge level)
  • ✅ Visual Display Screen: An intuitive display greatly boosts convenience, letting you monitor the welding process, device temperature, and remaining battery at all times
  • ✅ Precise Gear Adjustment: With 99 fine-adjustment gears available, the spot welding equipment perfectly meets your diverse welding needs for different materials and thicknesses
  • ✅ Auto/Manual Dual Modes: Choose freely between auto welding and manual trigger welding based on your needs—adapts to various scenarios for greater convenience

Product Details

Brand:Seesii
Model:SE302
Color:Black

SEESII Battery Spot Welder: Handheld Spot Welding Machine with Rechargeable Battery, Mini Battery Welder for Nickel-Plated Sheets up to 0.2mm - for Battery Pack Assembly and Repair

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Key Features

  • ✅ Wireless, Portable Design: Built-in battery supports cordless operation and easy portability, eliminating cable constraints and enabling flexible use anytime, anywhere
  • ✅ Visual Display Screen: Real-time voltage, gear settings and welding mode are clearly displayed, simplifying operation steps and ensuring accurate adjustments for stable welding effects
  • ✅ 80 Adjustable Gears: Realizes refined welding power regulation, adapting to nickel sheets of different thicknesses with a maximum welding thickness of 0.2mm for nickel-plated sheets and 0.15mm for pure nickel sheets, meeting diverse welding requirements
  • ✅ Reusable Cleaning File: Equipped with a reusable file to remove carbon deposits on the welding tip, maintaining stable welding performance and extending the tip's service life
  • ✅ Durable Aluminum Shell: Boasts a sturdy aluminum shell that enhances texture and durability, resisting wear and tear for long-term reliable use

Product Details

Brand:Seesii
Model:SE209
Color:Black
Dimensions:9.8031495963 X 2.2047244072 X 0.9055118101 inches

SEESII 10KW Battery Spot Welder: Cordless 10000mAh Spot Welding Equipment, Color LCD Display, 25 Adjustable Gears, Auto/Foot Pedal Control, for Battery Packs DIY & Repair

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Key Features

  • ✅ 【Upgraded Battery Spot Welder】Delivers a peak output power of 10KW; It enables solid welding for nickel-plated sheets under 0.3mm and pure nickel sheets under 0.15mm in thickness
  • ✅ 【10000mAh Rechargeable Battery】Built-in ultra-large capacity battery; According to official test data, it can support more than 300 welding times when fully charged and set to gear 25 (Note: For optimal performance, fully charge it to 100% before first use)
  • ✅ 【Multi-Scene Application】Perfect for battery assembly, maintenance and DIY projects; Great for DIY and repair of power tool, electric vehicle and drone battery packs, as well as thin metal welding (Note: Aluminum and copper are not recommended due to high welding difficulty)
  • ✅ 【Clear Parameter Display】Color screen displays real-time voltage and other parameters for easier operation (Note: Welding quality is closely tied to the voltage level; Higher voltage brings better welding performance and firmer welds; Please charge when below 7.3V)
  • ✅ 【Compact Design】Compact overall size with the longest side approx 6.5 inches, lightweight and portable; A powerful yet compact battery repair station

Product Details

Brand:Seesii
Model:SE-402
Color:Black
Dimensions:1 X 1 X 1 inches

AWithZ 9000W Battery Spot Welder, Rotary Knob Operation 100 Gears Adjustable Foot Pedal Operated, 0.1-0.3mm Spot Welder with Dual Pulse Output, Portable Spot Welder for Making DIY Battery Packs (UK1)

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Key Features

  • ✅ Two types of Trigger Flexibility & Safety: Seamlessly switch between hands-free foot pedal operation and precise hand control (Trigger) for versatile workflows and enhanced safety when handling sensitive batteries.
  • ✅ Intelligent Thermal Protection: Built-in safety monitors battery temperature (Cont), automatically halting welding (Trigger disable) and alerting you if overheating is detected, preventing damage. If there is no operation for 8 minutes, the spot welder will automatically shut down.
  • ✅ Ultra-Low Power Consumption: Engineered for exceptional energy efficiency , significantly extending standby time between uses and reducing operational costs. Precision 100-Level Power Control: Fine-tune welding strength for delicate tasks (like phone/Button batteries) or robust jobs (cylindrical power cells) with our intuitive rotary knob.
  • ✅ Multi-Mode Welding for Diverse Batteries: Expertly weld cylindrical power batteries, mobile phone batteries, and Button batteries (Mode) with tailored settings accessible via the clear control panel.
  • ✅ Simple Rotary Knob Operation & Clear Interface: Effortlessly adjust settings (Gear, Trigger Time, Mode, Number of continuous spot welds) using the large rotary knob and clearly labeled control panel for ultimate user-friendliness.

Product Details

Brand:AWithZ
Model:UK1

SEESII 10KW Capacitive Battery Spot Welder: 12V Power Supply Available, Spot Welding Machine with Low Internal Resistance, Overvoltage Protection, for Battery Packs DIY & Repair

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Key Features

  • ✅ 10KW High Welding Power: Features a 10KW maximum output for strong, stable welding performance; It firmly welds up to 0.3mm nickel-plated sheets, 0.2mm pure nickel sheets, and 0.2mm low-carbon steel sheets, covering mainstream battery welding and metal repair requirements
  • ✅ Advanced Super Capacitor Energy Storage: Utilizes premium super capacitor energy storage technology to collect energy via low-current accumulation; Compatible with 12V+ power sources, it enables outdoor portable operation; The low-voltage structure eliminates electric shock hazards, ensuring safer daily use
  • ✅ Heavy-duty Metal Construction: Adopts integrated metal housing with outstanding wear, collision and deformation resistance; It withstands frequent daily operation and external impacts, effectively prolonging the machine’s service life
  • ✅ Intuitive Screen Operation: Built with a high-definition display for clear, real-time parameter viewing; It simplifies human-computer interaction and allows fast, precise parameter adjustment with no complex operations, greatly improving working efficiency
  • ✅ 250 Precision Adjustable Gears: Equipped with 250 fine-tuning gear levels to adapt to different metal materials and sheet thicknesses; Precise gear adjustment delivers optimized welding effects for diverse application scenarios

Product Details

Brand:Seesii
Model:‎SE-223
Size:Medium
Color:Black
Dimensions:7.87401574 X 7.87401574 X 7.87401574 inches

SEESII Capacitive Battery Spot Welder: 10KW(2000A) High Power Output, Includes 6 Copper Welding Pins, Plug-in Spot Welder for Lithium Batteries, Nickel Sheet (Battery Repair)

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Key Features

  • ✅ 【Upgraded Version】This upgraded spot welder has stronger welding performance, with firmer and more beautiful welds; It has a maximum power of 10KW and a peak current of 2000A, ensuring stable and efficient welding
  • ✅ 【Multi-Scene Application】Ideal for battery assembly, maintenance and DIY enthusiasts, it fits power tool, electric vehicle, aircraft model battery pack DIY/repair, and thin metal welding (aluminum/copper are not recommended due to high welding difficulty); It welds nickel-plated steel strip (max 0.4mm), pure nickel (max 0.3mm), low-carbon steel/stainless steel (within 1mm)
  • ✅ 【999 Precision Gears】With 999 gear settings, users can choose the optimal gear according to material type and thickness to optimize welding effect; This precise adjustment avoids issues like weak welds or burn-through
  • ✅ 【Continuous Welding】Supports continuous welding function, ideal for thicker materials; Set continuous welding times (max 3 times) to trigger multiple welds with one contact
  • ✅ 【Multiple Safety Protections】Built-in over-temperature, over-voltage and over-current protection to ensure safe and reliable use for users at all skill levels; And these protection mechanisms effectively avoid equipment damage

Product Details

Brand:Seesii
Model:SE-305
Color:Black
Dimensions:7.1 X 3.4 X 3.7 inches

SEESII Battery Spot Welder: Continuous Welding Function, 8.0Ah Rechargeable Capacity, Portable Spot Welder with Visual Display, Perfect for DIY/Repairs

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Key Features

  • ✅ 【8000mAh Rechargeable Battery】Experience unrestricted cordless operation for on-the-go or on-site use — charge the battery to full capacity (100%) prior to initial use to unlock peak performance
  • ✅ 【High-Power Welding Performance】Boasting a maximum output of 10080W, this portable spot welder outperforms conventional models in its class; It delivers reliable, consistent welds for 0.25mm nickel-plated sheets and 0.15mm pure nickel sheets
  • ✅ 【NEW FEATURE Continuous Welding】Customize the number of repeated weld cycles (default setting: 1); For thicker workpieces, increase the cycle count to achieve robust, long-lasting weld joints
  • ✅ 【Space-Saving Standable Structure】Integrated vertical stand design enables stable upright placement, reducing storage space while ensuring consistent precision during every welding operation
  • ✅ 【User-Friendly Visual Display】The intuitive screen provides real-time monitoring of welding progress, device temperature, and remaining battery life—enhancing operational convenience and control

Product Details

Brand:Seesii
Model:SE301
Color:Blue

Capacitor Spot Welder for Battery Pack, 10.5kW Farad Welding Machine, Automatic & Foot Pedal Modes, 100-240V, for 18650/21700/LiFePO4 Cells, Nickel Strip Welding Kit

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Key Features

  • ✅ Capacitor Spot Welder for Battery Pack: Built for battery pack welding tasks—spot weld nickel strip connections with controlled pulse output.
  • ✅ 10.5kW Farad Welding Machine Power: Capacitor energy storage supports stable weld pulses for repeatable results on common pack builds.
  • ✅ Automatic + Foot Pedal Modes: Use auto triggering for speed or foot pedal control for precise timing and hands-free operation.
  • ✅ 100–240V Wide Voltage Input: Works with standard power sources—practical for home workshops or small production environments.
  • ✅ For 18650/21700/LiFePO4 Cells: Designed for popular cell types and nickel strip work; includes essential accessories for setup.

Product Details

Brand:PETINBOX
Model:RZ015

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

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Key Features

  • ✅ [One-handed precise spot welding·Free your hands and double the efficiency]: Awgem SH2 Battery Spot Welder,Integrated ergonomic design. No need for traditional welding pen, one-handed welding of small battery packs is completed, DIY maintenance efficiency is increased by 30%.(Applicable to cylindrical batteries such as 18650/26650/36650, mobile phone batteries, and electronic devices that require batteries.)
  • ✅ [LCD screen real-time display, dual mode to overcome multiple scenarios]: Awgem SH2 LCD screen displays the Preheating/Trigger time/Temperature in real time, the dual-mode icon automatically highlights the prompt, the automatic mode intelligently matches the mobile phone/Bluetooth battery sheet, and the manual mode accurately controls the welding of small battery packs, supporting the welding of 0.1-0.2mm nickel-plated sheets.
  • ✅ [Humanized design, simple and fast operation]: SH2 Spot welder upgraded manual button: The manual button is designed to the thumb position to make manual welding easier and more accurate. More suitable for precise and detailed welding work. Long press the manual welding button to switch between manual/automatic mode at any time.
  • ✅ [Modular design·40% reduction in consumables cost]: Spot welder for batteries innovative replaceable spot welding needle design, low replacement cost. suitable for home or outdoor use of mini spot welding machine, we provide exquisite gift box packaging, packaging accessories are complete (spot welding machine, nickel sheet, gauze, charging cable). Best DIY gift for friends, boyfriends, husbands, and fathers.
  • ✅ [Dual-core safety protection·worry-free welding]: Awgem spot welder,Exclusively developed safety system: automatic red light alarm when the battery cell voltage is less than 3.2V, forced cutting of the welding point and blue light warning when the temperature is ≥65℃, double protection eliminates the risk of over-discharge/overheating and protects the core life of the battery.

Product Details

Brand:Awgem
Model:SH2
Dimensions:0.6 X 1.5 X 6 inches

14.6 KW Capacitor Battery Spot Welder, AWithZ Spot Welder, 2-in-1 Automatic & Foot Pedal Two Modes Battery Farad Welding Equipment for 18650/LiFePO4 Lithium Battery Pack Building (P20B)

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Key Features

  • ✅ 5 Minute Quick Start Spot Welder: We use a wide voltage input of 100-240V and an adapter of 15amp high current for fast charging Connect the spot welding machine to the power supply using our adapter, and quickly reach the spot welding mark within 5 minutes (the display screen shows OK for spot welding), which can be used anywhere in the world.
  • ✅ 2 IN 1Mode: Our spot welding machine has automatic mode and foot pedal mode. The automatic mode is adjusted to the appropriate gear, and the spot welding pen can be inserted to start working immediately. Foot pedal mode, It is so much easier to position the probes for your welds when you are using the foot pedal. It gives you ample time to get everything set perfect before welding. step on the foot pedal and the spot welding pen will output once, which is very convenient.
  • ✅ Wide Application Range: A well made, compact spot welder. Not only for battery pack work, such as cylindrical batteries such as 18650/14500/21700, but even LiFePO4 batteries, industrial batteries, etc. And it can also be used for spot welding of different materials, for example, such as 0.6mm nickel plated sheet, 0.6 stainless steel sheet, 0.6 iron sheet, 0.3 pure nickel sheet, 0.2 copper sheet, etc. There are 999 adjustable gears, with different gear requirements for different materials.
  • ✅ Professional Battery Spot Welder: Equipped with 2 built-in super energy storage capacitors, Ultra capacitors have many thoughts of cycle life, and the maximum pulse welding power can reach 14.6KW. It is a brand new MOS, with no interference to the circuit or tripping issues, stable and sustainable operation, making it the best choice for professionals and DIY enthusiasts.
  • ✅ Random Bending Spot welding Pen Lead: The lead is very soft and can be bent freely without dragging the spot welding machine. The lead wire is 60 centimeters long, very suitable for our operation. The lead pins can be disassembled and replaced, and we have paired them with 6 pairs of replacement pins. When using the high gear continuously, the temperature of the lead is close to our hand temperature, but it will not harm us.

Product Details

Brand:AWithZ
Model:P20B
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