About this 3D model

I had this idea for a long time and some have already published it with their ideas. Now comes just one more to it. But you can print piece by piece and not a whole chain. Actually I wanted to make a whole ammo belt for batteries, but I lacked the time. Perhaps you did it? Print it with the back side down. You need no support. Printed with PETG Update: Now there are 3 versions. AA, AAA, CR123A. All versions fits together.