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3D Models for 40140 Power Bank Cases and Holders

This collection gathers 3D models for 40140 power bank projects, from cell holders and spacers to enclosures and DIY electronics. You can use it to plan a build around large cylindrical cells or adapt an existing pack. Each listing points to files whose scale, part count and author settings you should check before printing on a 3D printer. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

Le texte de cette collection est rédigé en anglais ; la recherche, elle, fonctionne dans toutes les langues.

Comment cette collection est composée

Polyzon compose cette collection à partir des résultats de recherche des plateformes connectées. Les doublons et les modèles sans aperçu sont retirés, les correspondances faibles sont placées à la fin, et le reste suit l’ordre de la recherche. Les modèles appartiennent à leurs auteurs : consultez les conditions sur la page de chaque modèle.

Règles de sélection : la rédaction de Polyzon · Texte mis à jour le 13/10/2026


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«3D Models for 40140 Power Bank Cases and Holders»

The reference shows holders and trays sized for 40140, 40135, 32140 and 32700 cells, alongside boxes for 18650 and 21700 packs. Some designs are simple cases that hold cells and wiring, while others include space for USB-C PD modules, BMS boards and switches. Multi-cell packs appear in series and parallel layouts, so the same power bank idea can be built as a compact unit or a larger block.

When choosing a file, check the cell format and count, the internal dimensions, and whether the model expects soldering, spring contacts or a battery holder. Look at the wall thickness, lid fit and screw bosses, because large cells add weight and can stress thin printed parts. On the author's page, review the material and settings they list, plus photos of real prints, to judge how the parts go together.

To refine the search, try terms such as 40140 holder, 40135 spacer, LiFePO4 power bank case, USB-C PD module box and 21700 pack enclosure. Related topics include battery trays, BMS mounts, panel-mount connectors and wiring channels. If a result is too specific, broaden to DIY power bank enclosure or cylindrical cell holder and then filter by the cell size you plan to use.

FAQ

Questions fréquentes

What is a 40140 power bank?
It usually means a power bank built around 40140 cylindrical cells, with a holder, enclosure and charging board. The 40140 size describes the cell dimensions, not a fixed design.
Can a 40140 case be printed on a typical 3D printer?
Many holders and cases are split into parts to fit common build volumes. Check the model dimensions and part count before printing.
What should you check in a DIY power bank STL?
Look at cell spacing, wall thickness, lid fit, and openings for USB-C or wiring. The author's page may list material, layer height and whether supports are needed.
How do you find matching parts for a 40140 pack?
Search by cell format, holder type and board size, such as 40140 spacer or USB-C PD enclosure. Related terms like 40135, 32140 and 32700 can lead to similar holders.

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