Is this 3D model free to download?

Yes, 18650 x40 case is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by TTGeek, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

18650 x40 case 3D printable model by TTGeek

18650 x40 case

Source: Thingiverse by TTGeek

The 18650 x40 case is a free printable 3D model from Thingiverse by TTGeek. A module based 18650 battery pack. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

114 saves Source: Thingiverse Updated 2026-10-08 License: CC-BY-NC · non-commercial Category: Tools & Workshop

Tags: 18650, 18650 battery, 18650 battery holder, 18650 case

About this model

A module based 18650 battery pack. Print the connector to join multiple x40 packs together, as many as you want! Print the attachment board to mount stuff on the side of the pack. (Added 15-09-2019) My 40p3s pack of old mixed type 18650 cells is still working great. i had a few cells go dead on me (cant hold charge for more than a minute), but that is because some 18650 cells just charge quicker than others and so they would over charge. I'm choosing natural selection for that problem. (Update End) For one module (with up to 40 cells), you will need: 2x Lid and 2x BatteryHolder. If you don't plan on using springs inside the BatteryHolder, you probably want to design your own Ring parts to suit your needs, because the pack height will be different in height. Otherwise, print 2x Ring aswell.…

Frequently asked questions

Is this 3D model free to download?: Yes. 18650 x40 case is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by TTGeek.
Who made this model?: Designed by TTGeek, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.