Capacitor Spot Welder, 10.5 kW Farad Battery Pack Welding Machine with Automatic & Foot Pedal Modes, 100–240 V Spot Welder for 18650/21700/LiFePO4 Battery Pack Assembly
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Availability:
Only 5 left in stock, order soon!
Arrives
Saturday, Mar 21
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Features
- Fast Start-Up & Wide Voltage Support Supports 100240 V AC input. After plugging in, the internal capacitor charges in a few minutes and the display shows when the welder is ready, helping you keep an efficient workflow whether in a home workshop or small production line.
- Farad Capacitor for Stable High Power Welding Built-in energy-storage capacitors deliver a controlled pulse output for consistent weld spots. Maximum pulse welding power up to 10.5 kW (up to 2000 A at 6 V) provides strong, stable welding performance for battery pack assembly. For best results, operate the welder while it remains connected to wall power.
- Automatic & Foot Pedal Welding Modes Offers two practical welding methods. In Automatic Mode, the welder triggers when the welding pen contacts the workpiece. In Foot Pedal Mode, you position the pen first and then step on the pedal to fire the weld, allowing steadier control on precise welds. Simple operation suitable for both beginners and experienced users.
- For Battery Packs & Multiple Metals Designed for assembling battery packs such as 18650, 14500, 21700, LiFePO4 and similar cells. Capable of spot welding thin sheets of copper (up to 0.15 mm), pure nickel (up to 0.25 mm), and steel / iron / nickel-plated sheet (up to 0.4 mm), when using appropriate power settings. Always wear protective gear such as safety goggles during operation.
- Aluminum Alloy Housing & Complete Kit Rugged aluminum-alloy enclosure with smooth edges is resistant to wear and helps dissipate heat. The insulated welding pens include replaceable copper tips for reliable current delivery. Package includes: SK-10P spot welder unit, AC power cord, foot pedal, pair of welding pens, nickel strip roll, battery holders, nickel-plated plates, spare welding tips, fine-grit file and user manualeverything you need to start building battery packs.
Manufacturer: Chufa
Item Weight: 3.54 pounds
Product Dimensions: 8.07 x 7.28 x 5.12 inches
Item model number: GCUS-816SK10PB
Power Source: ac
Included Components: Spot Welder
Batteries Included?: No
Batteries Required?: No
Date First Available: November 7, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Mar 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Works well and is powerful. I like that I can trigger the spot weld with the foot switch. Welds are good and strong with a middle setting so I should be able to weld thicker material if needed.
Reviewed in the United States on February 10, 2026 by RC
Beware. When I receive my first order, it was used and missing The tips. The screen was scratched and plastic pieces rattling inside like something was broken. I returned for a new one. When I receive the second one. Exactly the same as the first. Scratched screen something rattling inside. At least all the pieces were there the second time. I didn't spend $150 for used junk. I'll try a different brand
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Reviewed in the United States on February 24, 2026 by Luke 81 Luke 81
This welder is exactly what I wanted. It has enough power for the projects I do and then some. It is simple to operate and has all the features I needed. I highly recommend it.
Reviewed in the United States on February 25, 2026 by Tim S.
Very good quality highly recommend do not buy cheap battery William machine highly recommend this one
Reviewed in the United States on February 11, 2026 by Cheper
Have used to build several battery packs. Works fine for the home gamer.
Reviewed in the United States on February 5, 2026 by HDthumper
Muy bueno lo recomiendo
Reviewed in the United States on February 12, 2026 by Alexander
This unit delivers precise, strong welds every time. I tested it on multiple 18650 cells and small metal tabs, and it never skipped a beat. The capacitors recharge fast, so you don’t have to wait long between welds. Sturdy, heavy-duty, and well-built—feels like it will last a long time.
Reviewed in the United States on December 14, 2025 by Kayla Ruana
This spot welder is really impressive. I used it on a few 18650 battery packs, and every weld was clean and consistent. The build quality feels very solid, and the foot pedal makes it easy to hold pieces steady while welding. Definitely worth the investment.
Reviewed in the United States on December 14, 2025 by O produto veio super bem embalado ,veio com a caneta o teclado e o mause,carregador compatível com o Brasil, p.só não consegui conectar o teclado mas acho e tipo erro meu.porem eu não consegui contato com o vendendo e tive pagar a faixa da alfândega mas no amazom fala que Acima de 200 reais e tauxa e do vendedor porem não consegui mas saiu barato pela tanto de coisa e pela qualidade do produto ,atendeu minhas nencidades.