18650 Battery tester module case
thingiverse
If you own the battery tester module available at https://es.aliexpress.com/item/Probador-de-bater-a-de-litio-LCD-18650-Li-Ion-Litio-probador-de-bater-a-medidor/32878232885.html?spm=a2g0s.9042311.0.0.51e363c0vWYeHR, you can easily print the battery holder using a 3D printer. The design used is based on the one found at https://www.thingiverse.com/thing:1515205.
Download Model from thingiverse
With this file you will be able to print 18650 Battery tester module case with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 18650 Battery tester module case.