1、Multiple Functions: This spot welder is powered by 2 Farad capacitors (2.7V 3000F), with high performance MCU control, supports automatic working mode, output power adjustment, delay setting, circuit board temperature monitoring, and high temperature reminder. 2、120 Levels Power: This spot welding machine has 120 levels output power adjustment, which can be quickly adjusted by rotating the button. The spot welding accuracy can be adjusted according to different needs to ensure better spot welding results. 3、Applicable Sheet: This battery spot welding machine can be used for nickel sheets with a thickness of 0.1‑0.3mm, nickel plated steel plates within 0.3mm, pure nickel sheets within 0.15mm, stainless steel strips within 0.35mm, and other welding projects. 4、Applicable Battery: This Farad capacitor spot welding machine is suitable for 14650, 17490, 26650, 32650 cylindrical lithium battery, nickel metal hydride battery, cadmium nickel battery, etc., which has good compatibility. 5、High Efficiency: Capacitor energy harvesting pulse technology and low power consumption allow you to use the welder for 12 hours of efficient work. When using it for the first time, it needs to be charged for 20 minutes and the voltage charged to 5V or above. Item Type: Spot Welder Material: PCB 1 x Farad Capacitor Set 2 x Spot Welding Pens 2 x Spot Welding Needles 1 x Nickel Sheet 1 x PMMA Shell 4 x Screws 1 x USB Cable 3 x Accessories 1 x User Manual 1 x Power Adapter