I like C and D cell lights but I don’t like using alkalines and I like to have lights that can run on different “fuels”. The 3D printed adapters came out pretty nice, which is why I an offering them here.
Since Mag-Lite uses very chunky springs for the tail, I’d prefer the 18650 be in the middle of the adapter in this case, if possible. Could you make one that way? [Note: I’m not ready to buy right now, so don’t do it just for me.]
That’s kinda what I did for the D cell lights by using two adapters, one to change D cell to C cell and the other a C cell to 18650. There is a washer on the base of the D cell to C cell adapters that mates with unmodified Mag D cell springs so that there is no need for a spring mod.
I find that the smaller springs on C cell Mags work fine with 18650’s and even smaller cells.
I am working on a 21700 to 2C adapter. 21700’s maybe the ultimate “fuel” for a 2C light in terms of run time - I don’t know of anything with more Watt hours that will fit in a unmodified 2C tube.
Have you tried printing a 3C to 2x 18650 adapter for Defiant 3C light? The two 18650 cells would be connected in parallel to extend run-time. My Defiant 3C eats through a single NCR18650B cell very quickly.
I have sold most of these elsewhere and only have a few adapters left. Due to lack of access to a 3D printer during virus shut down, I will not be printing more for a while.
One of the last ones I completed is a 26650 to 3D cell adapter:
If I ever get a 6D ML300, I might come up with something to run a couple 26650 specifically for a 6D but 2 of the 3D to 26650 adapters would work just as well.
I am thinking of making some adapters for moding incan 3 D cell Mags that would run them on two protected 26650’s without any need to do a spring mod. Does anyone here still mod Mags? I am trying to gage interest.