AA to AAA Battery Adapter – Lightweight Design for Gaming Mouse

This 3D-printed AA to AAA battery adapter allows you to reduce weight in devices like gaming mice by using a lighter AAA battery instead of a AA. The design is optimized for easy printing with no supports required. No problem to print with 0.2.

For conductivity, simply wrap a 3mm-wide copper tape around the contact points. Alternatively, aluminum foil or thin copper wire can also be used.