- Experience effortless DIY spot welding with our innovative machine that integrates a built-in power supply and welding pen, eliminating the need for external tools. This design simplifies your projects and enhances your welding efficiency. - Equipped with a miniature USB charging interface, this spot welder offers convenient and hassle-free charging, ensuring you are always ready to tackle your projects. - The soldering pen features gold-plated terminals, providing excellent conductivity and minimal contact resistance, resulting in superior welding performance and reliability. - Designed for both DIY enthusiasts and professionals, this portable spot welder's compact size makes it ideal for on-the-go use, allowing you to weld nickel sheets with precision and ease. - Practical applications include battery pack assembly, making repairs on electronic devices, and crafting custom battery configurations for various projects. - Compatible with various materials, this spot welder is perfect for anyone looking to create strong, reliable connections in a variety of settings. - The high-performance design ensures that you can achieve consistent results every time, making it a valuable addition to your toolkit.