Dual Pulse 18650 Battery Spot Welder Double Capacitors

Main Description

Introducing the Dual Pulse 18650 Battery Spot Welder Double Capacitors by DWiusty — a compact, high-performance welding tool designed for fast, reliable battery pack assembly. This spot welder uses supercapacitor energy storage to deliver powerful current pulses, so you can weld 18650 cells and nickel strips with precision without overloading the mains. Constructed from aviation aluminum alloy, it combines durability with a portable, field-ready design. It supports universal 110V-240V input and features intelligent temperature control to keep internal temperatures around 45°C, helping maintain consistent weld quality session after session.

With a peak output of 1400A, it can firmly weld nickel strips up to 0.25mm thick and handle a maximum welding thickness of 0.3mm. It even enables copper sheets as thin as 0.1mm to be welded in battery packs, broadening its versatility. A 1.8-inch LCD screen provides clear real-time feedback, and a 50cm welding pen offers practical reach for assembling packs. Power is adjustable in 250 gear steps, giving you precise control to suit different cell chemistries and configurations. Plus, because it relies on energy stored in supercapacitors, it won’t strain the power grid, making it ideal for on-site work with a portable 12V power source.

Benefits & Tips

• Efficiently weld 18650 cells with nickel strips for stable, high-quality battery packs.
• Field-friendly operation: use any 12V power supply (>3A) for portable welding without mains interruptions.
• Intelligent temperature control helps maintain consistent welds by keeping the internal temperature around 45°C.

Product specifications

• Brand: DWiusty
• Origin: Mainland China
• Voltage: 110V-240V (Universal)
• Power adjustment: 250 gears
• Current: 5V 2100A
• Screen display: 1.8-inch LCD
• Spot welding pen wire length: 50 cm
• Peak output: 1400A (can firmly weld 0.3mm nickel strip)
• Temperature control: Intelligent, keeps internal temp around 45°C
• Material: Aviation aluminum alloy

Package includes:

• 1 × Spot welding machine kit

Warnings/Reminders

• Maximum nickel strip thickness: 0.25mm; maximum welding thickness: 0.3mm. Do not exceed these limits.
• For field use, ensure a 12V power supply (>3A) is connected; operation on inadequate power can affect weld quality.
• This is a supercapacitor energy storage welder, not a transformer welder. Allow cooling between welds and follow all safety guidelines.
• Operate on a stable, dry surface and keep away from moisture and flammable materials.

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