Battery Holder 18500-21700–7-Cell Series Layout
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Description
🔋 Downloadable 3D-Printed Battery Holder for 18500 & 21700 Cells – 7-Cell Series Layout 🔋
Take your DIY battery builds to the next level with this custom 3D-printable holder, perfectly designed for 7-series (7s) configurations using 18500 or 21700 lithium-ion cells! 🛠️
Ideal for building custom battery packs for e-bikes, RC projects, powerwalls, or mobile power units.
⚙️ What You Need:
- Heat-resistant, durable filament (PETG, ABS or ASA recommended) 🔥
- Spot welder or high-quality nickel strips for cell connections
- 7x 18500 or 21700 Li-Ion cells (depending on the version)
- BMS (Battery Management System) suitable for your configuration (optional, but recommended) 🔋
This holder is designed for tight, secure cell placement, with enough airflow and spacing to allow for passive cooling.
Each cell slot snaps snugly into place – no glue required. Modular design allows you to chain multiple holders for larger packs! 🧩
💡 Options Included:
- Separate STL files for 18500 and 21700 formats
- Alignment holes for easy stacking and solder-free builds
- Compact layout for optimal space efficiency
Print it, build it, and power your project with confidence! ⚡
Project type in pic: DIY 7s Battery Pack – 18500/21700 Compatible
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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