Gravity Battery Dispenser: AA/AAA Curved Tracks + 9v, D & Coin Cell Bins

Summary

Batteries roll down curved tracks and stop at a lip on the bottom, so you always grab the oldest one first. The same body also holds 9V batteries, one D cell, and loose coin cells. It's parametric (Fusion 360 file included, so you can tweak clearances to suit your printer.

How it began

I was tired of digging through a drawer of batteries and never knowing which ones were busted and which were fresh. I saw a curved battery holder online and wanted my own version that also handles 9V, D, and coin cells. I modelled it from scratch in Fusion 360 :)

What's included

• 2AA tracks and 2AAA tracks with embossed labels

• 6 pockets for 9V (PP3) batteries

• 1 round recess for a D cell

• 1 open bin for loose button/coin cells

• 2 keyhole mounts on the back for wall use

Dimensions

109.2 x 169.2 x 104.8 mm

BOM:

1x Dispenser

Mounting

Use two screws with 8mm heads. The big hole points down, so slide the part down onto the screws. It's front-heavy when full, so use proper wall anchors.

How to use it

1. Hang it or set it on a flat surface

2. Drop AA or AAA batteries into the top of the matching track

3. Take the lowest battery from the exit. The next one rolls down

4. Put new batteries in at the top, and the old ones come out first.

5. Keep 9V in the pockets with the terminals facing up, and coin cells in the open bin.

Safety

Don't store loose lithium cells with metal objects! Keep batteries and cells out of reach of small children!!

Tips

It is recommended to print it on its side, with the side containing the text "Battery dispenser" and the 4 viewing cutouts.

Status

Untested; tolerances based on standard FDM clearances.

Files

• STL 

• Fusion 360 (.f3d)

• STEP

• G-Code for Bambu Lab A1, PLA