The SUNKKO 709-PLUS Spot Welding Machine with 70B output is a high-performance device designed for battery pack assembly, nickel strip welding, and DIY lithium battery projects. It delivers strong, precise, and reliable welds on lithium-ion cells such as 18650, 21700, and 32700. Its adjustable current settings, durable construction, and user-friendly interface make it suitable for professional workshops and hobbyist applications alike.
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Battery Management System (BMS)Model: SUNKKO 709-PLUS with 70B (b019)
Type: Battery Spot Welding Machine
Input Voltage: AC 220V / AC 110V optional depending on region
Output Current: Up to 70B for strong and stable welds
Power Capacity: Adjustable, typically up to ~1500W
Welding Thickness: Supports nickel strips 0.1 mm – 0.3 mm
Welding Modes:
Automatic Mode – continuous welding
Manual Mode – precise spot welding
Control Features: Adjustable pulse time and welding current
Display: Digital/LED interface for monitoring
Cooling System: Built-in fan for efficient heat dissipation
Electrodes: Replaceable copper welding tips
Weight: ~6–9 kg
Dimensions: Compact bench-top design
Safety Features: Overcurrent, overheating, and short-circuit protection
Applications:
Battery pack assembly and repair (18650, 21700, 32700)
Nickel strip welding
DIY battery projects and prototyping
Small-scale industrial battery manufacturing.
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