SUNKKO SPOT WELDING MACHINE 788H

SPOT WELDING MACHINE SUNKKO 788H

Product Data Sheet

SUNKKO 788H Battery Spot Welder – Transformer Inversion Pulse Welding Machine

The SUNKKO 788H Battery Spot Welder Transformer Inversion Pulse Welding Machine is a professional multi-function lithium battery welding machine designed for precision spot welding, battery testing, and charging applications. Built with advanced transformer inversion pulse welding technology, the SUNKKO 788H delivers stable welding performance, intelligent pulse control, and reliable welding quality for lithium battery pack manufacturing and repair.

This industrial-grade spot welding machine is ideal for assembling and repairing 18650, 21700, lithium-ion, NiMH, and NiCd battery packs used in laptops, electric bicycles, UAV batteries, portable power stations, solar energy storage systems, and electric tools. The advanced pulse welding system ensures strong and clean welding spots with minimal heat impact, protecting battery cells from overheating and damage during welding operations.

The SUNKKO 788H features intelligent microcomputer control technology that provides precise pulse welding adjustment for different welding materials and thicknesses. Users can choose between single pulse and double pulse ultra-fast welding modes to achieve more reliable and accurate welding results. The pulse group can be quickly adjusted through the rotary knob control system, supporting up to 16 pulse combinations for improved welding flexibility.

One of the key highlights of the SUNKKO 788H is its built-in battery charging and testing function. The machine includes an adjustable charging system with output voltage ranging from DC 4.2V to 36V, making it suitable for charging and testing both single-cell and assembled lithium battery packs. The intelligent battery tester can measure charging float voltage and convert internal resistance parameters through charging current analysis, helping users evaluate battery performance accurately.

The SUNKKO 788H is equipped with a foot-operated welding trigger switch that improves welding precision and enhances weld quality during operation. Its high-current slow welding mode is specially designed for welding thicker nickel strips and battery connectors with stable conductivity and strong weld penetration.

Built with a compact industrial-grade design, the SUNKKO 788H provides stable long-term operation with efficient cooling and reliable transformer output. The user-friendly control panel and multifunction digital display make operation simple and efficient for both professional technicians and battery manufacturers.

Key Features:

• •Advanced transformer inversion pulse welding technology
• •3-in-1 function: Welding, Testing, and Charging
• •Intelligent microcomputer pulse control system
• •Single pulse and double pulse welding modes
• •Adjustable pulse group up to 16 pulses
• •Built-in battery charging and testing system
• •Adjustable charging voltage from 4.2V to 36V
• •Foot pedal welding trigger for improved precision
• •Suitable for thicker nickel strip welding
• •Stable industrial-grade welding performance

Applications:

• •Lithium battery pack assembly
• •Laptop battery repair
• •UAV battery manufacturing
• •Electric bicycle battery welding
• •Portable power station battery packs
• •Solar street light battery assembly
• •Electric tool battery repair
• •Rechargeable battery pack production

The SUNKKO SUNKKO 788H Battery Spot Welder Transformer Inversion Pulse Welding Machine is the perfect solution for professional battery manufacturers, repair technicians, and industrial users looking for precision pulse welding, intelligent battery testing, and reliable lithium battery assembly performance.