Minimal 18650 Holder

18650 lithium cells are great - high capacity, higher voltage and current than household batteries. But you don't want to just throw a lithium battery in to your bag because they can be a fire risk if shorted.

I saw a simple 18650 holder that was two caps that were held together with elastic bands (https://thangs.com/designer/Nf1nk/3d-model/18650%20holder%20%281%29.stl-861781). However, I also have 21700 batteries, and this one wouldn't work with those. So I whipped up a simple FreeCAD project that could be easily modified for most common sizes.

Print two and insert up to three 18650 batteries. Secure the two caps with hair elastics.

The original had no license specified. It's a pretty trivial object so do with it what you will. I am also uploading a version for 21700 batteries.

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Minimal 21700 Holder

Lithium cells are great - high capacity, higher voltage and current than household batteries. But you don't want to just throw a lithium battery in to your bag because they can be a fire risk if shorted.

I saw a simple 18650 holder that was two caps that were held together with elastic bands (https://thangs.com/designer/Nf1nk/3d-model/18650%20holder%20%281%29.stl-861781). However, I also have 21700 batteries, and this one wouldn't work with those. So I whipped up a simple FreeCAD project that could be easily modified for most common sizes.

Print two and insert up to three 21700 batteries. Secure the two caps with hair elastics.

The original on Thangs had no license specified. It's a pretty trivial object so do with it what you will. I am also uploading a version for 18650 batteries.

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Minimal 18650 Holder

Table lamp

AirPods MagSafe Charging Tray

Chunky Block Drip Tray // 100mm

EZPZ Mini Magnet Strip Collection // 5 Rectangular Wall Mounted Magnets

Kawung Statement Ring

Gyroid Bowl Textured

Moon Key Holder

Flatland // Hill Vases

Minimal 21700 Holder

sleek wave lamp

Delicate Cone 30 // Dried Plant Holders (2 sizes)

Pebble Dog - Minimalist Stone-Look Sculpture

Stretched Gyroid TPMS Lattice Vase

Sakura plate

Thoroughly Modern Dice Set with Decader Mini

Luna Vase - Minimalist See-Through Design

Minimal Frame Stand

Min Dice Set with Decader Mini

Desktop Stand