Because I do so much drone stuff, and I have wireless keyboards and mice, I go through a to of battery charges. So I keep my rechargeable batteries on my desk. I was using a different stand, but it held the batteries too loose, and i always stuck the AAA between them and they just fell over a lot. So, i did this one to keep it all clean and maximize use of the space. Just designed in CAD. Cut out holes for batteries and tried to use as little plastic as possible to get the job done.