Électronique

18650 Battery Cases: STL Models for 3D Printing

This collection gathers STL models for holding and storing cylindrical lithium cells, from slim single-cell sleeves to boxes that take a whole pack. The files range from simple open trays to closed cases with lids, hinges or spring contacts, so the same topic covers both storage and build projects. It is useful when you are organising loose cells or designing a housing around them for 3D printing. 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.

Une collection Polyzon · 48 modèles sur 4 plateformes

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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 15/10/2026

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«18650 Battery Cases: STL Models for 3D Printing»

The models split roughly into open holders and closed containers. Open holders keep cells visible and let you pull them out by hand, while lidded boxes protect the terminals and keep dust out. Some designs are printed as one piece with a living hinge or a snap closure, and others are separate bodies with a lid that you fit afterwards. Spring-based holders add a flexible arm that presses the cell into place instead of relying on a tight fit.

When you open a model page, look at the cell count and the internal dimensions first, because the nominal size of a cylindrical cell does not include the wrapper or the protection board on some variants. Check how many separate parts the author lists, whether the lid needs extra hardware, and whether the geometry requires supports. Read the material and settings the author mentions, and look at photos of real prints to judge wall thickness, tolerances and how the closure actually behaves.

If the results feel narrow, try related wording: cell holder, battery tray, storage box, caddy, dispenser, or the diameter and length of the cell instead of the model number. Searching for the device the pack goes into, such as a handheld radio or a power tool housing, often surfaces enclosures that also fit loose cells. Combining a holder term with a mounting term, like rail, panel or wall bracket, brings up versions meant to be fixed in place.

A few points are worth deciding before you print. A snug friction fit holds a cell without extra parts but can be hard to remove, while a loose fit needs a lid or a strap. Thin walls save material but flex, and thick walls hold shape at the cost of print time. If the case is meant to travel, check how the lid is retained and whether the cells can shift sideways.

FAQ

Questions fréquentes

What do I need to measure before printing a cell holder?
Measure the actual diameter and length of your cells with a caliper, including the wrapper, and compare that with the internal dimensions the author lists. A protected cell is often longer than an unprotected one of the same nominal size.
Why do some of these cases print as a single piece?
Print-in-place designs use a thin living hinge or a snap feature so the lid and body come off the plate already connected. They remove the need for screws or pins, but the clearance between the moving parts depends on how well your printer handles small gaps.
Which material works for a battery tray?
Rigid filaments that keep their shape under light load are common for trays and holders, since the part mainly resists compression. Check what the author used, because the fit of a snap lid changes with the stiffness and shrinkage of the filament.
How can I find a case for a specific number of cells?
Search with the cell type plus a holder or tray term, and add the arrangement you want, such as inline, side by side or stacked. Browsing related storage and enclosure topics also turns up designs that were named after the device rather than the cell.
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