Travel 18650x4 Battery Case - New! Now Stackable!

thingiverse

This is a remix of the most excellent battery holder designed by Alyohich. I have resized it to hold 4 of the very popular 18650 batteries. I deliberately left several millimeters of clearance between the lid and the batteries, allowing you to add your own padding to keep them from rattling around. A thin piece of foam rubber or even a wadded up paper towel works great in this scenario. The space also helps with some of the height variances seen in these batteries. This design prints without supports. 20% fill is more than enough. It slices fine in Cura and Slic3r, both of which autorepair some minor errors. If you like this design, be sure to check out versions for AA and AAA here: https://www.thingiverse.com/thing:3154032 Edit (1/19/19): I've come up with a joiner piece that allows you to stack the battery holders! Just print a top and a bottom and as many joiners as you want! Photos are from the AA version but the 18650 works the same.