Modular 9V battery organizer

I was so fond of zamu's battery organisers and so bummed they hadn't made a 9V battery holder that I designed one based on their organisers. It can holds up to five 9V batteries, and the plugs indent has enough room to accomodate the negative socket of the battery.I wasn't able to find measurements for the small plugs, so I did my best at given the sufficient room for the battery, while keeping the print sturdy.