Specification: Item Type: Spot Welder Material: Hard Aluminum Alloy Weight: Approx. 480g/16.9oz (Including Packaging) Color: Black Shell, Brass Soldering Pen Battery Specifications: Type: High Rate Battery (Included) Model: 607260 20C Capacity: 5000mAH Key parameters: Welding capacity of 0.15mm nickel strip at full power, suitable for 18650 battery assembly. *It uses high current discharge to melt the nickel sheet and spot weld it to the battery. *Aluminum and copper are not suitable for spot welding, steel sheets are ok. Weld about 800 points per charge. *The battery capacity is about 5000mAH, and it supports charging and soldering, and it has unlimited battery life. The all-aluminum shell is easy to dissipate heat, complete charging and welding protection, and stability is guaranteed. Package List: 1 x Spot Welder 2 x Welding Pen 1 x Spot Welding Piece 1 x USB Line 1 x Manual