Integrated Type Spot Welding Pen — Automatic Trigger Weld Machine Accessory for 18650 Battery, Black DIY Battery Spot Welder Pen Key benefits Enables precise, repeatable spot welds for 18650 battery cells when used with a compatible automatic trigger weld machine. Reduces damage risk to battery cells by delivering controlled, localized welds rather than soldering, preserving cell performance and safety. Integrated design simplifies setup and handling compared with separate probe assemblies, improving workflow for DIY builders and technicians. Black, compact pen form factor provides comfortable grip and clear orientation for accurate placement on cell tabs and nickel strips. What this accessory does and why you need it Designed as an accessory for automatic trigger weld machines, this spot welding pen converts the machine output into a handheld, penstyle electrode interface optimized for working with 18650 cells. It streamlines common tasks in battery pack assembly and by allowing focused welds on cell terminals and interconnect strips, reducing rework and improving pack consistency. Ideal for anyone building, repairing, or modifying lithiumion battery packs who requires a reliable tool for spot welding thin metal tabs to 18650 cells. Key attributes Type: Integrated type spot welding pen — penstyle, allinone accessory. Functionality: Acts as a pen electrode for automatic trigger weld machines to perform spot welds on 18650 batteries and related components. Compatibility: Intended for use with automatic trigger weld machines as an accessory; optimized for 18650 battery cell work. Color/finish: Black. Intended use: DIY battery spot welding, battery pack assembly and , smallscale production or prototyping. Typical applications and use cases Battery pack assembly: Welding nickel strips or tabs to 18650 cells to assemble multicell battery packs for flashlights, power tools, or custom battery projects. Cell replacement and : Making precise spot welds when replacing individual 18650 cells in an existing pack or repairing damaged terminals. Prototyping and smallrun production: Fast, repeatable spot welding during prototype builds or lowvolume manufacturing where a penstyle electrode improves accessibility and accuracy. What to expect in use Use the spot welding pen as the operator interface for an automatic trigger weld machine; the weld machine provides the power and trigger control while the pen delivers the electrode contact point to the cell or tab. The integrated pen format helps maintain a steady hand position and consistent contact angle for reliable weld placement on 18650 cells. Notes and compatibility This product is an accessory intended for use with automatic trigger weld machines. Verify your weld machine accepts penstyle accessory interfaces before . Specifically optimized for 18650 battery cell applications and DIY battery spot welding tasks. Packaging and appearance Penstyle accessory finished in black, designed for ergonomic handheld operation and precise electrode placement.