This 3D-printed battery holder provides a compact and organized way to store small round batteries alongside a standard cylindrical cell. Individual vertical slots keep the coin-style batteries separated, upright, and easy to remove, while the larger compartment offers dedicated space for an additional battery type. Raised outer walls help prevent loose items from shifting or falling out during handling. Its compact footprint makes it practical for desks, workshops, electronics benches, or storage drawers. The simple compartment layout improves visibility and accessibility, making it easier to keep frequently used batteries neatly arranged and ready for use.