The SUNKKO S-73B Spot Welding Pen with U-Connector is a high-quality, heavy-duty welding accessory designed for professional and DIY battery pack assembly. Built with a 16mm² pure copper U-Connector, it ensures low resistance, high conductivity, and stable current flow, delivering consistent welding performance for nickel strip and battery pack spot welding.

Ideal for 18650 battery pack assembly, RC LiPo battery welding, drone battery fabrication, and energy storage system construction, this U-Connector provides a secure and efficient electrical connection. It is engineered to handle high current loads with minimal heat generation, guaranteeing strong welds, reduced energy loss, and long service life.

Compatible with SUNKKO S-73B spot welding pens, this connector is easy to install and serves as a reliable upgrade or replacement for improved welding precision and durability. Whether used in workshops or for home projects, it’s the perfect solution for battery builders who demand performance and reliability.

Features:

• Fully compatible with SUNKKO S-73B Spot Welding Pen

• 16mm² pure copper U-Connector for superior conductivity

• Supports high-current battery spot welding with stable output

• Ideal for RC, drone, and 18650 battery pack assembly

• Minimizes resistance and enhances welding efficiency

• Durable copper build ensures long lifespan and reliability

• Easy to install and replace for quick setup

Specifications:

• Product Type: Spot Welding Pen U-Connector

• Material: Pure Copper

• Cross-Section Area: 16mm²

• Compatibility: SUNKKO S-73B Spot Welding Pen

• Application: Battery pack welding, nickel strip welding, RC LiPo battery, energy storage

• Conductivity: High (low resistance copper construction)

• Durability: Long-lasting, heat-resistant design

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