Upgrade your battery welding projects with this high-performance 12V Spot Welder DIY Kit. Designed for precision and durability, this kit features a 99-gear adjustable power control board, delivering up to 1700A for welding 0.1-0.3mm nickel sheets. Ideal for cylindrical lithium and nickel-metal hydride batteries (e.g., 18650, 21700, 26650), it ensures solid, beautiful weld spots for thousands of continuous welds.

Key Features

• High-Power Output: 5 MOS tubes support up to 1700A, with reserved slots for DIY upgrades.
• Adjustable Precision: 99 gears of power adjustment for accurate welding control.
• Real-Time Display: Digital tube shows gear settings (1-99) for easy operation.
• Versatile Compatibility: Welds 0.1-0.3mm nickel sheets for batteries like 14650, 17490, 18650, 21700, 26650, and 32650.
• Durable Welding Pen: 8mm² pen with 10AWG multi-strand, high-temperature wire and alumina copper needles for high current and durability.
• Protective Case: Transparent housing prevents short-circuit damage, enhancing safety.
• Low Power Consumption: Standby power under 0.5mA, with a working voltage of 6.5-16V.

Specifications

• Material: Printed Circuit Board (PCB)
• Voltage: 12.0V
• Welding Current: Max 1700A
• Welding Thickness: 0.1-0.3mm nickel sheets
• Capacity: 20AH-80AH (new batteries ≤45AH; consult for higher capacity)
• Working Temperature: -10℃ to 60℃
• Dimensions (with case): 94 x 63 x 25mm

Important Notes

Do not use switching power supplies, transformers, chargers, water batteries, or rechargeable batteries as power sources. For batteries over 45AH, consult customer service for current-limiting methods.

What’s Included

• 1 x Control Board
• 2 x Input Cables
• 1 x Pair of Welding Pens
• 2 x Heat Shrink Tubing
• 6 x Screws
• 1 x Nickel Sheet
• 1 x Guideline
• 1 x Protective Case

Why Choose This Spot Welder?

This DIY spot welder combines high current output, precise control, and robust design, making it perfect for hobbyists and professionals building battery packs. The protective case and durable components ensure safe, long-lasting performance.