Had fun building an 18650 dummy cell today!

Wanted to make one for a 2 cell light with a single cell driver, wanted it to be able to carry a lot of current if needed and wanted low resistance. Soldered 2 40 S&W cases to a correctly sized and cleaned section of copper tubing! Turned out great!

Nice build :+1:
I also have plan to build dummy 16340 using copper tube.