SUNKKO 709A Battery Spot Welder – 18650 Lithium Battery Pulse Welding Machine with Soldering Station

Overview 

The SUNKKO 709A is an all-in-one professional battery pack assembly station designed for joining nickel strips to 18650, 21700, and 26650 lithium-ion cells. Combining a high-power micro-computer controlled dual-pulse spot welder with an integrated 50W soldering iron, it allows technicians to perform spot welding and terminal wire soldering on a single workbench station.

Key Features 

• 2-in-1 Design: Features an integrated spot welding system and a temperature-controlled 50W soldering station (150°C to 450°C).

• Dual Welding Modes: Work using the fixed welding head with LED work lights for small cells, or use the ergonomic 70BN mobile welding pen for larger, flexible battery pack configurations.

• Micro-Computer Pulse Control: Adjustable 2/4/6/8-pulse selection with fine pressure and current regulation knobs to ensure clean, spark-free welds.

• Foot Pedal Operation: Includes a foot switch attachment for hands-free, high-precision trigger timing.

• Built-in LED Lighting: Illuminates the welding zone on the fixed head for enhanced visibility during fine-pitch battery assembly.

Technical Specifications 

Ideal Applications 

• Lithium Battery Pack Fabrication: Building custom power walls, e-bike batteries, and power tool battery upgrades.

• Cell Tab Repair: Spot welding nickel strips onto 18650, 21700, and 32650 cells without thermal damage to internal separators.

• Electronics Workshop & R&D: General metal sheet spot welding and high-precision bench soldering.