Rugged 18650 Battery Case (In-line 4)

I was looking for a box to fit 4 18650 batteries I carry daily in my EDC bag, I found a few options but nothing that fit my needs. This was created to fill those needs while being in a slim profile to save space in my pack.

There are 3 versions of the battery case, there are small differences but for simplicity sake the files are grouped by version.

Version differences:

Version 1:

- Open body - 2 latches - Loose tolerances in relation to the batteries (for personal customization) - Requires 6 - M3x30 screws Version 2:

- Body has divider spines to keep batteries upright/ reduce noise - 2 latches - tighter tolerances in relation to batteries - requires 6 - M3x30 screws Version 3:

- Body is the same as Version 2 (spines/tolerances) - 1 latch (Pro: easier to open; Con: less secure) - Requires 4 - M3x30 screws All versions are designed to have a bit of foam in the lid to reduce movement/noise and add some shock absorption. all seals should be printed in a squishy material (TPU, silicone, ect.)

I printed my cases in PET-G with 3 wall loops and 25% infill, making it a tough weather/UV resistant case with little to no noise. I filled in the seal groove with silicone caulk, smoothed and let dry before closing the box (An option if you don't want to buy/print TPU).

Assembly is simple, all screws should orient threads to the center of the model. For the single latch V3 the latch screws orient threads going left to right. The latches may be tight at first requiring it to be threaded by the screw when assembling, over time they will break in becoming easier to use.