FatShark 18650 battery end caps
thingiverse
End caps turn two 18650 batteries, like the famous NCR18650B from Panasonic, into a fatshark-compatible battery that stays in the strap just like the original. The "ears" on both sides of the goggles' strap keep them securely in place. A parameter in the scad file allows you to easily switch between different end cap styles for your convenience. This instructable was used: https://www.instructables.com/id/FatShark-FPV-Goggle-Replacement-Battery/ I know, I used the wrong connector in the screenshot - an XT60 instead of a barrel. This is due to a modification made to my goggles.
With this file you will be able to print FatShark 18650 battery end caps with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on FatShark 18650 battery end caps.