Olympus BLS-50 / BLS-5 battery holder

A simple box to stop the contacts of spare batteries from shorting out when carried in my camera bag. The battery slips in, contacts downwards so they are protected.
Mine was printed with translucent PLA using a layer height of 0.2mm. The box has a wall thickness of 1mm. I initially set the fill to be 50% but realised it was a quicker print to have 100% fill. The box is printed vertically with the opening at the top.