Flatpack 2.0 Modular Watertight Battery Storage

AuxArc presents the Flatpack 2.0 Modular Watertight Battery Storage solution.

Last year, I produced a watertight puck solution for battery storage, and then a smaller, more compact, also watertight, flat pack for the same purpose.  I got a lot of requests of a wide variety of batteries though, 18650s, 18350s, no 9v, more CR123a, you name it.  A one stop battery shop for your camping bag, your range box, your overland vehicle, whatever.  So this is the answer.  A modular battery box.  There's some improvements.  For starters, it can hold more.  Secondly, it has a much more robust latch system.  Third, there are two case size options here, the long 2x3 square box and the short 2x2 box.  

  Either one you choose, you can print a TPU gasket for.  If you do that, you'll want to print the longer latches.  The short latches will keep the box shut flush, but you'll want the longer ones to accommodate the gasket.  To assemble, press the two keys through the top of the tray until they are flush.  I would then put a few inserts in so you can push against them, and push it into the cap to lock the tray to the cap.  Snap on the latches.  Slide the gasket over the tray and potentially glue in place if you wish.  If you use the optional nameplate, customize the name you want and you can glue it in the square on the box just above the “Flatpack 2.0” name.

  Current Insert options are:

• 3x AA
• 7x AAA
• 3x CR123A
• 2x 18350s
• 2x 18650s and storage space
• 1x 9v
• 1x 9v, 3x 1632 and 3x 2032
• 4x 18350s with storage space
• Short empty tray
• Long empty tray

  There are also two step files, one for each size of insert, where you can customize and design your own insert for the batteries you need.  

  Feel free to continue with requests, suggestions, critiques and comments!  Your support, downloads, boosts and requests are what keep the development happening here.  Thank you!