Universal Dual-Size Battery Holder (18650 & 21700 Compatible)
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able to use both 18650 & 21700
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Electronics
- Licencja
- Creative Commons — Attribution — Noncommercial — NoDerivatives
Upgrade your battery-powered projects with this versatile 3D-printable battery holder, specially designed to securely fit both 18650 and 21700 lithium-ion cells in a single unit!
Whether you're a maker, DIY electronics enthusiast, or just looking for a clean way to manage your batteries, this model allows you to:
Swap between 18650 (18×65 mm) and 21700 (21×70 mm) batteries without needing separate holders.
Easily print and assemble — no supports required (depending on orientation).
Use it in robotics, power banks, flashlights, or other electronics projects.
📝 Suggestion
Print Upside down for no Support
🎯 Features:
Compatible with both 18650 and 21700 battery sizes
Secure locking channels to prevent battery movement
Compact and modular design
Easy to print on most FDM 3D printers
3D printing settings
📦 Recommended Print Settings:
Material: PETG or ABS (for heat resistance and durability)
Layer height: 0.2 mm
Infill: 20–30%
No supports (if printed in down facing)