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Cults3Dfree
superlight 21700 Li-Ion 6s1p / 6s2p spacer for FPV long-range
by eyefly
I do enjoy solderiong my long-range batteries myself. These spacer are very helpful when putting them together and provide protection against shortages in case of a crash. All version that i found on here were too heavy for my taste - as in long-range every gram counts (also the battery gets beefier). So i designed a version that is very slim (walls are only 1mm thick), but still provides some basic protection. The following versions are available: [4s1p/4s2p 18650](https://www.thingiverse.com/thing:5390815/). [4s1p/4s2p 21700](https://www.thingiverse.com/thing:5390817/). [6s1p/6s2p 18650](https://www.thingiverse.com/thing:6566462/). [6s1p/6s2p 21700](https://www.thingiverse.com/thing:6566458/). Print in TPU.
View on Cults3D Last seen June 14, 2026