Sunkko 788h pulse spot welder with charger for 18650 batteries

The Sunkko 788h pulse spot welder is a professional tool designed for precise welding of metal strips, especially useful for joining 18650 batteries. This machine is perfect for repairing and building battery packs for laptops, power banks, electric vacuums, drills, tools and electric car batteries.

With a microcontrolled system that allows a welding current of up to 800 A, the Sunkko 788h guarantees a strong and durable bond on strips 0,1 to 0,2 mm thick. In addition, it includes an adjustable battery charger function between 4.2 and 36 V with an output current of 0 to 3 A, making it easy to test and charge batteries directly from the same machine.

A standout feature is the LED light located under the welding points, which significantly improves precision during the process. It also has a foot switch and pressure adjustment to optimise welding quality and accuracy.

Main features

• Double pulse spot welding microcomputer with integrated charger.
• Microprocessor control with precision adjustment up to level 199 (99*1 or 99*2).
• Selection of one or two welding pulses for different materials.
• Quick adjustment button for pulse series (up to 16 pulses), ideal for thicker materials.
• Adjustable charger from 4.2 to 36 V and adjustable output current from 0 to 3 A.
• Foot switch and pressure adjustment for greater welding precision.
• LED light to improve visibility at the welding point.

Technical specifications

• Input voltage: AC 220 V
• Primary current: 2-15 A
• Welding current: 50 - 800 A (pulse time 1 ms - 19 ms)
• Charger output voltage: 4.2 - 36 V (adjustable)
• Charger output current: 0-3 A (adjustable)
• Weight: 4,3 kg
• Dimensions: 140 x 245 x 200 mm
• Sheet thickness for welding: 0,1 - 0,2 mm

Important note: Due to the machine's high instantaneous power consumption, the electrical installation must have an RCD and earth connection of at least 40 A to avoid frequent trips.

Common uses

• Repair and manufacture of 18650 battery packs for laptops and power banks.
• Welding batteries for vacuum cleaners, drills and other power tools.
• Manufacture and repair of batteries for electric cars.
• DIY projects that require precise welding of thin metal strips.

Compatibility

Compatible with 18650 batteries and other similar formats that require spot welding. Its integrated charger is suitable for batteries with voltages between 4.2 and 36 V.

• Double pulse spot welding microcomputer with integrated charger
• Adjustable welding current up to 800 A for 0.1-0.2 mm strips
• Adjustable battery charger from 4.2 to 36 V and 0-3 A
• LED light to improve precision at the welding point
• Foot switch and pressure adjustment for greater control
• Input voltage: AC 220 V, primary current 2-15 A
• Compact dimensions and lightweight design at 4.3 kg