Wave FIFO Battery Holder

A stylish battery holder for AA or AAA batteries that is first-in first-out. This is a parameterized OpenSCAD model. You want to do AAAA or C cells, you should be able to measure the batteries and change the parameters in the model to produce a new holder suitable for your needs. You can change the amplitude of the wave and the period as well. You can make it taller if you want to store a lot of batteries, though it might get tippy if you go too high. I haven't tested all the possible p