Multi- - The spot welder can be used to spot weld cylindrical lithium batteries, -metal hydride batteries and 18650/26650/32650 batteries such as cadmium- batteries, and mobile phone batteries can also be spot welded. Adjustable Gears - The spot welding machine has 6 gears that can be adjusted. Different gears are used for different materials. The spot welding materials can be , iron, stainless steel, aluminum, etc. 0.1-0.2 mm in thickness . Capacity - The spot welder has a capacity of 5000 mAh, built-in rechargeable 2 electric power lithium batteries, discharge current 650A, environmentally friendly. Type-C 2A input, it can be fully in about 3 hours. also use it to charge other devices. Welding Pen - The terminal of the welding pen is gold-plated, which can pass a higher current. The 7mm spot welding has ultra-low resistance and anti-oxidation. The welding pen has a length of 40cm/16 inches, which is flexible and convenient for us to use. Protection Measures - The portable spot welder has perfect overcharge and over temperature protection functions. unique overheating protection device automatically cuts off the power when overheating occurs, and it will automatically shut down without any operation for 8 minutes, allowing you to use it more safely. color: White : ABS+Metal Package Contents: 1 x spot welder 1 x spot welding pen 1 x charging cable 1 roll of 2M sheet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.