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  • adapter

  • gadget

  • electronics

  • aa

  • aaa

  • battery

  • battery holder

  • battery adapter

  • utility

  • aa battery

  • converter

  • aaa battery

  • aaa to aa battery adapter

  • d battery

  • c battery

Universal Battery Adapter
Print Profile(1)
  • Universal Battery Adapter 0.2mm layer, 2 walls, 15% infill

    5-disc

    PLA

    Designer

7

9

63

15

Released 2026-05-08
Details
Files(6)
Makes & Comments (0)

Never be without the right battery again! A complete collection of 3D-printable adapters to convert your AAA and AA batteries to larger sizes (C and D).

General Description
Need a D battery for your flashlight or a C battery for an old toy, but only have AAA or AA batteries at home? This adapter set is the perfect solution.

I designed these adapters with a consistent and robust design, optimized for 3D printing. The set covers every possible combination, allowing you to use AA and AAA batteries in devices that require larger sizes.

The kit includes the following adapters:

AAA ➔ AA

AAA ➔ C

AAA ➔ D

AA ➔ C

AA ➔ D

C ➔ D

 

Design Features
Unified Design: All models follow the same clean and functional aesthetic.

Easy Assembly: The models are designed to house the battery securely, ensuring perfect electrical contact (we recommend using small screws (M2.5x6) or metal contacts as shown in the photo).

Inspection Windows: Some models feature side openings to facilitate battery removal and reduce weight.

Included Text: Each adapter is engraved with the conversion type (e.g., "AA TO C") for easy identification.

Originality of the Model

The author declares that this work is their personally original model

This model is licensed under the following terms:

Standard Digital File License

This work is licensed under a Standard Digital File License. Digital files have a strict non-commercial, personal use only license.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital file or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including remixes of this object). You can not host these files on other digital platforms, web stores or cloud repositories. The objects may not be used in any way whatsoever in which you charge money, collect fees.

Models(6)

  • model file image
    Universal Battery Adapter Elegoo.3mfDesigner

    678.52 KB

    2026-05-06

  • model file image
    AAA TO AA.stlDesigner

    173.32 KB

    2026-05-06

  • model file image
    AAA TO C.stlDesigner

    302.52 KB

    2026-05-06

  • model file image
    AA TO C.stlDesigner

    279.96 KB

    2026-05-06

  • model file image
    AA TO D, C TO D.stlDesigner

    620.88 KB

    2026-05-06

  • model file image
    AAA TO D.stlDesigner

    892.46 KB

    2026-05-06

  • View all(6)

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