Batteries case for 6x AA 1.5v batteries

thingiverse

This is a carry case designed for six AA batteries. The batteries fit within it, but they are a bit too loose, causing the top part of the design to be similarly sloppy. It appears that the security margin was extended slightly too far, resulting in a less-than-tight enclosure. I plan to add some fabric reinforcement inside the case to snugly hold the batteries in place and reduce any potential noise caused by movement. As for the top, my current suggestion involves using an elastic band to keep it securely closed.