Goxfaca Battery Spot Welding Kit | 99 Gears Power Portable DIY Spot Welder Machine Kit | Mini Size Lithium Battery Spot Welding Machine for 14650/17490/18650/21700/26650/32650 Battery - Walmart.com
3goa Spot Welder with Soldering Iron, 11000mAh Soldering Iron Kit Electronics, Adjustable Temperature Welding Tool, Portable Spot Welding Equipment for DIY 18650 Battery, Soldering Iron Stand - - Amazon.com
Spot Welder Diy Kit 99 Gears Power Adjustable Mini Spots Welding Machine Control Board For Welding 14650 17490 18650 Battery - Spot Welders - AliExpress
A Battery-Tab Welder With Real Control Issues | Hackaday