Accu caps / batterry holder

Beeing out in the wild with my flashlight and doing the strobist requires always a spare set of full batteries. To keep them together I made these small cups to be placed over the ends of the batteries to keep them together.

I figures out that the accuracy of my printer ( Leapfrog creatr ) messes a little bit with the perfect fit of the parts. I would recommend to give it a try first and test the fit. If printed correctly the caps should slide over the batteries a little bit tight and should