General description H2 Big Color Screen 90 Gears Spot Welder is a powerful handheld welding machine designed for convenience and efficiency. This two-in-one device combines a built-in power supply and welding pen, eliminating the need for an external welding pen. It is lightweight and portable, making it easy to use anytime and anywhere. The welder is suitable for various cylindrical batteries, including 18650, 26650, and 36650, as well as mobile phone batteries and other electronic devices requiring batteries. Technical specifications Model type: H2 Input interface: Type-C Input parameters: 5V/1A (MAX) Output voltage: 4.2V (MAX) Output current: 650A (MAX) Working temperature: -10 ℃ to 60 ℃ Charging temperature: 0 ℃ to 60 ℃ Color: Black Material: Aluminum Alloy Dimensions: Measurement allowed error is +/- 1-3cm Usage The spot welding machine features 90 adjustable output power levels, allowing users to customize the welding process according to the material being welded. It can