Hexo+ Battery Caddy

Hexo+ drone has a low (8 minute battery life) so everyone wants spare batteries. Due to some strange non-standard design choices, the manufacturer can't provide these. The plug socket is very obscure so it's expensive and difficult to obtain. The battery cell arrangement is also very not standard.

This battery caddy, while an imperfect solution, will do the job. Be cautious sliding it into place the first time so that everything is lined up nicely and doesn't bend the metal contacts points. The printed socket is a separate slot in part so that you can customise this to the specific banana plugs you use, without having to reprint the whole thing in one go. I have slotted mine in then sealed it in place using a soldering iron. Glue or just friction may work for you.

We are still stuck with limited dimensions for batteries, particularly length. In my design, your batteries will need to be shorter than 102mm, minus however much the banana clips poke out the battery side. Internal wi