How maximize battery life on Therion 166?

[Therion166]

I would like to know the process for maximizing my battery settings for my DNA Therion 166 mod. I'm fairly new subsiding from applying themes as well as making them. 

I am using Samsung 2500Mah 3.7V 18650 batteries if that helps. Any advice would be helpful! 

[67exec]

Running temp control and some low mass wire Does wonders for battery life. I can get 300+ puffs from a dna75c using dual 28g 316l at .40ohms from a single Ijoy 20700 battery which is rated 3000mah, but battery analyzer came up with 8.361Wh.