This Holder helps you to keep your AA Batteries in order. The Plate is stackable with and without batteries.
It has a little dot on one side. This way you can keep track witch battery is full or empty. You could place the positive side of the battery to the side with the dot to indicate the battery is full. Or you turn the battery around to indicate it is empty.
I printed this one in PLA without support and without brim. Due to the structure of the base you might should choose otherwise according to your experience with your printer.
Next to the STL files you can also find the original Blend file. Have fun! :D