Is this 3D model free to download?

Yes, AA to C cell adapter is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by CaptainCryptogram, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

AA to C cell adapter 3D printable model by CaptainCryptogram

AA to C cell adapter

Source: Thingiverse by CaptainCryptogram

The AA to C cell adapter is a free printable 3D model from Thingiverse by CaptainCryptogram. An AA cell adapter to C cell. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

1,772 saves Source: Thingiverse Updated 2026-10-16 License: CC0 · commercial OK 2 makes Category: Gadgets & Electronics

Tags: AA Battery, battery, battery adapter, C battery, RC battery protection

About this model

An AA cell adapter to C cell. Much like others. Save money on batteries. Decent quality AA's are a fraction of the price of cheap C's. While they only have 35% the capacity and therefore life span, they have ~17% the price of C cells in my estimation when AAs are purchased in bulk. In locations where battery changes are inconvenient, it's still worthwhile sticking with C's. But in cases where battery changes are quick and easy, this will save you around 50% of the cost of batteries. Printable without supports, slotted to reduce filament use.

Frequently asked questions

Is this 3D model free to download?: Yes. AA to C cell adapter is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by CaptainCryptogram.
Who made this model?: Designed by CaptainCryptogram, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.