[SWM-10] FNIRSI Portable Battery Spot Welder DIY Mini Welding Machine 18650 Battery Pack Welding Tool 5000mah Weldable 0.25mmThe FNIRSI SWM 10 is a portable and compact battery spot welder, designed for DIY battery pack assembly and repair. It's particularly useful for welding 18650 lithium ion batteries, making it a valuable tool for electronics enthusiasts and hobbyists. Key Features: Compact and Portable: Easy to carry and use. High Power Density: Delivers high welding power for efficient and reliable welds. Adjustable Welding Time: Allows you to customize welding time