Feature:1. Portable and Convenient: Our battery spot welding machine with LED display is designed for easy transportation and quick use. The detachable welding needle allows for easy replacement, ensuring continuous operation without interruption. With 8 layers of protection including short circuit, low temperature, high temperature, overcharge, and overdischarge protection, etc.2. Versatile and Efficient: Featuring 11 levels of output power, support manual and automatic modes to switch, our welding machine adapts to various welding tasks. It supports a self-adaptive dual-pulse plating nickel welding range of 0.05mm - 0.25 mm, ensuring strong and reliable welds with exceptional results.3. Long-lasting Battery Life, Comfortable Grip: Equipped with a built-in 3000mAh lithium battery, our welding machine offers extended usage time. The fast charging feature with 5V1A allows for quick recharging, ensuring uninterrupted workflow and increased productivity. 4. Comfortable Grip,Enhanced Performance: The arc-shaped handle design provides a comfortable grip, allowing for precise control during welding.5. Reliable and Safe: With its comprehensive protection features and intelligent temperature detection system, our welding machine guarantees safety and reliability during operation. Whether you are a professional or a DIY enthusiast, our welding machine is the perfect choice for all your welding needs.Specification:Product Model: 756Color: BlackMaterial: ABSGear Adjustment: 11 Gear AdjustmentBattery: 3000 mAhCharging Input: DC 5V 1AOutput Voltage: 4.2VOutput Current: 800A (MAX)Net Weight: 149gProduct Size: 19.6x4.1x2.5cmPackage List:1 x Spot welder2 x Copper needles1 x Charging cable1 x 2M nickel coil1 x Sandpaper1 x Instruction manual