Remixed the Parametric Rugged Box to be a bit larger with an insert that can fit 50 AA batteries.
Printed at .2mm layer height on a Bambu X1C using OAB's PETG profiles in Sunlu Grey PETG.
Requires 6x 3x30mm screws to assemble. I also installed some EVA foam in the top and bottom for a more snug fit and to prevent any rattling noises.
I've included an .stl and .3mf file with everything needed to construct this.
Special thanks to @JamesGray_655248 for helping out with resizing some of the hinges while upsizing the box to fit.
The author remixed this model.