1. Highly Efficient Welding: Achieve strong, reliable welds and excellent solder joints for consistent results every time. 2. Advanced Double Pulse Technology: Minimize spattering and enhance energy output by effectively cleaning the oxide layer on the weldment, ensuring better welding reliability. 3. Versatile 2-in-1 Battery Spot Welder: Capable of welding materials up to 25mm thick, this machine features double pulse technology, a powerful 5000mAh lithium battery, and a discharge capability of 1200A. 4. Wide Application Range: Ideal for welding mobile phone batteries, cylindrical batteries, repairing power banks, and battery assembly, making it a practical tool for various tasks. 5. Professional Brass Spot Welding Pen: Designed with a replaceable feature, this pen allows for easy replacement without needing to buy a new unit, ensuring precise and high-quality spot welding. 6. High-Grade Lithium Batteries: Equipped with high-rate power lithium batteries for dependable performance, ensuring you avoid lower quality battery issues. 7. Dual Functionality: This device also functions as a power bank with a USB 5V1A output, enabling you to charge USB devices like mobile phones on the go. 8. Intelligent Temperature Control: The built-in temperature control probe monitors conditions in real-time, providing safety and protection during use. 9. User-Friendly LCD Display: The 8-inch high-definition color screen offers a clear view of operating status and settings, providing a smarter and more intuitive interface.