18650 TPU Battery Holder

Simple 18650 holder for three batteries. I wanted a very compact way to hold these batteries as I fly a drone that runs on a single 18650 cell so I was going to be carrying these in my pocket. You will need to print two parts per three batteries that you want to store. I keep the two pieces attached to each other using a thin slice of a bike inner tube, but a rubber band or piece of cord would work just as well. I also print these in different colors to delineate between charged or discharged batteries while I'm out in the field. I also recommend always removing the negative side of the holder to access the cells to avoid shorts as much as possible. Enjoy!