This custom 3D-printed battery holder is designed to fit into the IKEA storage box with Artikelnummer 501.772.23. It provides organized compartments for various types of batteries, including AA, AAA, 9V, and button cell batteries. The holder securely keeps your batteries in place and makes them easy to access.

If you find that the holes for the batteries are too small, you can use the two sticks with polishing paper (shown in the images) to carefully enlarge the holes to fit your batteries comfortably.