Hello Tim, welcome to Vapor Talk! I would suggest an eGo, long battery life and it is not much bigger than a reg. cig. 8-12 hours depending on use.
Here is the link.......
http://www.vaportalk...s/Joye-eGo.html
I would not recommend using these on a 510 batt, I am pretty sure you will kill the batt. The eGo would be a better option and it is not that much bigger in size.
I believe I read that at a higher voltage LR,s don't perform as well as SR,s. A lot of vendors carry these batteries I personally don't use them myself. Someone will be along shortly to help out I'm sure.
It is not a Joyetech 510 but 510 appears to be the thread size although I would verify that with the supplier. If it is a 510 thread then a 306 or 401 would not work without an adaptor.