Features Optimised Spot Welding --- Our Spot Welder Control Board is designed for efficient spot welding of 0.1-0.3mm wafers, providing precise results while saving time and effort. Intelligent Chip Technology --- Featuring a cutting-edges logic control chip, this Mini Welder Control Board intelligently evaluates battery level to ensure stable performance and enhanced safety during handling. Versatility --- Supporting amplification gears, capacity gears, and six adjustable power levels, our Welding Controller Module has built-in low and over power warnings to prevent unnecessary soldering. Powerful Current Range --- Equipped with six high-quality original MOS tubes, this spot welder offers a maximum stabilised current of 1800A and a flexible welding current range of 100A-900A to meet different project requirements. User-friendly Welding Mode --- The automatic welding mode eases your task, while the control module activates the auto-sleep function after 8 minutes of inactivity to ensure safe and practical handling. Specification: Item Type: Spot Welder Control Board Product Model: DHJ 02B Working Voltage: 6.5-16V Working Current: Standby Power Consumption: Recommended Operating Temperature: -10-60℃ Welding Peak Current: 1800A Maximum Smart Sleep: Automatic sleep after 8 minutes of inactivity Welding Mode: Default automatic welding mode Welded Sheet Thickness: 0.1-0.25mm (related to battery discharge energy) Common Power Supply: High rate lithium battery, high rate lithium iron and other lithium batteries How to Use: This product requires your own power supply and supports 5V‑16V power supply. The working current of the equipment is about 100‑900A, and it supports welding of 0.1‑0.3mm plated sheets. Steps: 1. Press and hold the on or off button to turn on or off, and the blue indicator light is always on at this time (it will be automatically turned off after 8 minutes if it is not used after it is turned on) 2. After short pressing the capacity, magnification and gear buttons, select the corresponding function to weld, and the corresponding LED light will also light up packing list: 2 x Cables 2 x Spot Welder Pens 1 x Control Board 1 x Belt 4 x Screws 4 x Nuts 2 x Heat Shrinkable Tubes 1 x User Manual Package List 2 x Cables 2 x Spot Welder Pens 1 x Control Board 1 x Nickel Belt 4 x Screws 4 x Nuts 2 x Heat Shrinkable Tubes 1 x User Manual