no i dont think so becuase the dimensions of the 18650 is a lot longer the 14500 is almost doulbe aa sized thus the promince of its use in AA battery box mods. what you should check out is the 18500 its only a little shorter but about 4mm thicker than the 14500. Link:
https://www.madvapes.com/Ultrafire-Protected-18500-Lithium-Ion-Battery_p_2038.html
Spriddle I use the AW 14500's listed on the Provape site. IMO they are much better than the standard batts and deliver consistent power throughout the drain cycle. No matter which type the 14500 is still a "small" (sub 1000mah) battery and with heavy vaping and driving LR atty's I get about 4 - 5 hours off a charge.
Thanks Liv, I have the AW batteries as well. And I use the LR 510 atty's. I usually get around 8 hrs with mine though. Guess I should be really happy with this. I mainly asked out of curiousity and the fact that I'm always interested in making something better if I can. Sometimes it ends up going the wrong direction so I try to ask questions first now. LOL!!
But thanks guys for all the info. It has definitely helped me out. I've also done other reading on the matter. Your posts helped.