12v/4a Portable Spot Welder 1-110-speed Adjustable Farad Capacitor DIY Nickel Sheet 18650 Lithium Battery US Plug

Description

Capacitors are not batteries. Capacitors are characterized by the ability to instantly release a powerful current that instantly melts metal for welding within milliseconds. Capacitors can be stored at zero voltage. Long-term use requires no maintenance, no memory effect. Easily weld 0.2mm pure nickel, 0.3mm nickel plated, 0.4mm stainless steel, the welding is bright but not black. Automatic welding can be adjusted in 0.5-7 seconds, and the welding power can be adjusted in 1-110 steps.