
Discover high-performance spot welders for battery building and precision electronics. Whether you're a DIY enthusiast or a professional builder, our curated selection includes reliable welders designed for copper, nickel, or sandwich strip welding. Trusted brands, consistent weld quality, and adjustable power settings ensure you get the job done right.
🔧 Ideal for: 18650/21700 pack assembly, copper-nickel sandwich welding, XT60/XT90 connector tabs
🔥 Includes models tested with 0.2mm copper and 0.3mm nickel
✅ Quality-tested by DIY500AMP
📦 U.S. Shipping Available
📽️ Real-world demos on our YouTube Channel