【Multi-Function Battery Spot Welding Pen】This portable welding machine is widely used for spot welding cylindrical lithium batteries, nickel-metal hydride batteries, and nickel-cadmium batteries, such as 18650, 26650, and 32650. It supports welding 0.1-0.3mm nickel sheets, stainless steel iron sheets, or stainless steel sheets, providing firm and aesthetically pleasing welds 【Double Pulse Welding Technology】The SWM-10 battery spot welding machine uses double pulse welding technology. During welding, it simultaneously releases two pulses: one pulse cleans the oxidation layer on the surface of the workpiece, reducing sparks and splashes, while the other pulse continues welding, ensuring consistent energy output and enhancing welding stability 【11 Adjustable Gears】This spot welding machine has adjustable gears and power, with a maximum of 11 gears. You can adjust it according to different welding materials. It is suitable for various scenarios, including button cell welding, cylindrical cell welding, manual welding DIY, and mobile phone battery welding 【Easy to Use】It features dual modes, supporting automatic and manual mode switching as needed. The battery spot welding machine stays within your palm. The operation process is simple and intuitive: just press the side power switch with your middle finger for 2 seconds to activate the device, then quickly adjust the gear using the top button with your index finger, and long-press for 2 seconds to switch modes—all without leaving your palm, truly achieving “one-hand control.” 【TFT Intelligent Color Screen Display】Equipped with a 1.33'' TFT visual HD color screen, it clearly displays welding status, battery voltage, temperature, preheating time, pulse time, interval time, charging voltage/current/power, and over-temperature/low-voltage/short-circuit warning indicators, allowing you to monitor the welding status more closely.