advnetlab on Twitter: "18650 50 Cell Battery Holder With Bus Bar Cut-out found on #Thingiverse https://t.co/KHDy7c9p0z https://t.co/QYIkIGISSQ" / Twitter
k014's Parametric 18650 Battery Holder (opensource) by k014 | Download free STL model | Printables.com
1P 18650 battery holder by GregoryZ - Thingiverse
18650 1x6 6S1P Li-ion battery holder by Gildef | Download free STL model | Printables.com