AA Battery Holder



Hello everyone! This battery holder is designed for quick and easy 3D printing while keeping a cute and practical design. The lid uses a clip system to stay securely closed, letting you mount the holder in any position – even upside down! It also includes two side covers to hide connectors, with multiple holes for cable exits.
This set includes files for a 4xAA battery holder, and I've also provided STL files for 2xAA and 3xAA holders.
Find assembly instructions here: https://www.instructables.com/AA-Battery-Holder/
Hope you find it useful for your projects!
Supplies

- 3D printer
- PLA filament
- Brass plated fasteners
- Pliers
- A cheap electric nail polisher or sand paper or iron wool
- 2 wires
- Soldering iron (optional)
Files and Printing



I use an Ender 3 S1 with "Standard Quality" (0.2mm) for generic PLA. No additional special settings or supports required.
Here are the stl files. You will have to rotate the lid and side covers for the printing.
Connectors


Meanwhile, the boring and dirty step. The fasteners come with some coating that you need to remove to ensure a good connection with the batteries. We need 5.
Folding Connectors


Now you have to fold 1 connector for the possitive (+) connection, 1 for the negative (-) without the "head", and 3 for (+-).
Attaching Connectors


When you look at the body, some of the battery dividers have a tiny space between them and the side wall to hold the (+-) connectors.
Wiring


Simply connect the (+) and (-) connectors to the wires and secure. You can also solder it if you like.
All Together Now








The side covers are symmetrical so you can rotate it.
Testing

For 1 Battery








For 2 Batteries






For 3 Batteries







