A friend of mine collects this small old tiger handhelds and some break or lose their battery door.
I searched online first, but the only stl that I've found was not exactly the right size.
So I've designed it from scratch in openscad, beware, the code will be ugly, I'm a beginner, but I wanted to include the .scad should someone need/want to modify it in the future :)

Creality

Ender 5

Yes

Yes

0.16

100

I've used a brim for stability, and tree type supports, which will be used only for the 2 small upper dents ad the 3 lower ones.
Printed on a Creality CR-6 MAX