Experience precise and efficient battery tab welding with this advanced Digital Spot Welding Machine, designed for high-rate lithium battery applications. Featuring a built-in microcontroller, this spot welder accurately controls pulsed energy output to generate rapid, high-temperature welding spots that fuse nickel-plated sheets to batteries with exceptional strength and consistency. Key Features: · Intelligent Working Principle: Utilizes a microcontroller program to deliver controlled pulsed energy, enabling rapid heating and cooling cycles that produce strong, reliable welds on nickel-plated steel and pure nickel sheets up to 0.25mm thickness. · Clear Digital Display: Equipped with an adjustable backlit screen (5-100% brightness) that shows welding current, pulse time, pulse interval, and continuous spot welding count for easy monitoring and precise control. · Fully Adjustable Parameters: Customize preheating time, pulse interval, and pulse rate to suit a wide range of welding tasks—from delicate aluminum sheets to thicker nickel plates—meeting diverse user requirements directly from the main interface. Additional settings include screen brightness adjustment, automatic shutdown timer, and factory record viewing. · Powerful Welding Capacity: Powered by two built-in high-rate 3.7V 5000mAh lithium batteries and a single-chip CNC controller, this spot welder delivers a strong pulse current (6-800A) for solid and aesthetically clean weld spots, ensuring durability and accuracy. · Comprehensive Safety Protections: Features over-current, short-circuit, low battery, and over-temperature protections, along with over-temperature alarms and automatic shutdown to safeguard both the user and device during operation. · Dual Language Support: Switch easily between Chinese and English interfaces for user convenience. Specifications: · Item Name: Digital Spot Welding Machine · Material: Printed Circuit Board, Metal Shell · Battery: Built-in 3.7V 5000mAh Lithium Battery · Input Voltage: 5V 2.1A · Output Voltage: 5V 2.4A · Welding Current Range: 6-800A · Welding Thickness Capacity: 0.1-0.25mm · Welding Delay: 0.5-2 seconds · Continuous Spot Interval: 0.8-1.2 seconds · Screen Brightness: Adjustable 5-100% · Active Shutdown Timer: 5-120 minutes · Alarm Temperature Range: 50-75℃ · Dimensions: 11.3 x 8.5 x 3 cm · Package Weight: 518g Package Includes: · 1 x Digital Spot Welding Machine · 1 x Type-C Charging Cable · 2 x Welding Pens · 1 x Nickel Sheet Sample This Digital Spot Welding Machine is an essential tool for battery manufacturing, repair, and DIY projects, offering precise control, robust welding power, and multiple safety features in a compact, user-friendly design. Optimize your welding tasks with this reliable and versatile spot welder that ensures consistent, high-quality welds every time.