Adapters for 3(L)R12 available in the USA?

ArchaeoCat

Newly Enlightened
Joined
Oct 13, 2021
Messages
18
Location
Colorado, USA
You could probably make an adapter out of a dead 3R12 battery and 3 AA battery holders in series - no need to 3D print anything.
Thanks, I thought of that. I might be able to cut one open. They are usually sonic welded or glued, otherwise sealed.
 

lctorana

Flashlight Enthusiast
Joined
Jun 28, 2007
Messages
2,117
Location
Melbourne, Australia
Here's what I intend to do:
Open up the dead batteries, and empty out the dead B cells. Keep the two terminal strips in situ.

Wire up 3 x 4/5A cells in series to the terminal strips. A bit of foam will compensate for the extra length.

An alternative would be to parallel 3 x 18500 cells inside the plastic container, and wire that up.
 

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