Specifications:Product Name: Battery Spot Welding MachineModel Number: Awgem-SH1 UpgradedOutput Power: 11 adjustable gearsSpot Welding Modes: Automatic / ManualDimensions (excluding welding pin): 165mm x 45.5mm x 24mmInput Interface: Type-CInput Parameters: 5V/2.1A (MAX)Output Voltage: 4.2V (MAX)Working Temperature: -10°C to 60°CCharging Temperature: 0°C to 60°CFeatures:1.Integrated 2-in-1 Design: Combines the built-in power supply and soldering pen, eliminating the need for external tools and enhancing portability for on-the-go repairs.2.Versatile Compatibility: Designed for cylindrical batteries, including 18650, 26650, and 36650, as well as mobile phone batteries and battery-powered devices, making it ideal for DIY enthusiasts and professionals alike.3.Power Adjustment Options: Features 11 adjustable output power levels to meet your spot welding requirements for different materials, ensuring flexibility and precision.4.Enhanced Safety Features: Equipped with temperature alarms, overcharge protection, short circuit safeguards, and automatic shutdown functionality after 6 minutes of inactivity for secure and worry-free usage.5.High-Efficiency Design: Designed for better heat dissipation with a long-lasting high-quality polymer battery. Each charge allows over 1,500 spot welds, ensuring optimized performance for extended tasks.Package Included:1 x Handheld Spot Welding Machine1 x 2-Meter Nickel-Plated Sheet1 x Piece of Dry Sanding Paper1 x Type-C Charging Cable2 x Spare Weldi