Making battery packs is a common pursuit in our community, involving spot-welding nickel strips to the terminals on individual cells. Many a pack has been made in this way, using reclaimed 18650 cells ...

There was a time when every gizmo on AliExpress also had a big white LED so it could also work as a flashlight, but maybe the power bank is the new flashlight. [Aaron Christophel] has a battery spot ...

Spot welding looks simple and easy until your products fall apart while being delivered to the job site. When that happened to one contractor several years ago, spot welding suddenly took on a whole ...