Tesla 21700 battery holder. NO WELDING !!! 3D printable model by smaks25

Tesla 21700 battery holder. NO WELDING !!!

Source: Thingiverse by smaks25

The Tesla 21700 battery holder. NO WELDING !!! is a free printable 3D model from Thingiverse by smaks25. Everyone knows that Tesla 21700 cells have an aluminium positive contact. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-05-23

Tags: Tesla, 21700, battery, holder., NO, WELDING, !!!

About this model

Everyone knows that Tesla 21700 cells have an aluminium positive contact. As far as I know, there is no reliable way to solder or weld them into a battery pack. I designed this holder to make assembling a battery — from 1S1P up to 12S or 6S2P — easy and reliable. You can print one, two, or more boxes and connect them into a battery pack using 8 mm × 0.15–0.2 mm nickel strip, without any soldering or welding. You can combine different holders to achieve the battery configuration you need. The cells sit in place very snugly and maintain a good, consistent contact. I printed in PETG with a 0.5 mm line width. No supports required. IMPORTANT NOTES: When inserting a cell into the holder slot, do it quickly, as some sparking is possible. You must also secure all 21700 cells in the holder to preve…

Frequently asked questions

Is this 3D model free to download?
Yes. Tesla 21700 battery holder. NO WELDING !!! is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by smaks25.
Who made this model?
Designed by smaks25, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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