These are battery holders for Multiboard and Hex (HSW) Wall. Note: these leverage Multiconnect for attachment to the Multiboard and Hex (HSW) wall. There is a file for AAAA, AAA, AA, C and D batteries. You should be able to print upright with no supports.

For the smaller battery holders you may find it easier to eject the battery from the top by pushing up via the finger hole at the base.

If you need to store a charger for batteries consider this multiboard adapter.