Yeah the Hana V200 is only 10.5 Watt/Hours its a 950mah 3 Cell 30c Lipo, so its alot smaller then your 2000mah LiPo, If your getting over 2 days then i should be getting atleast a work day which would be 8 Hours but iam not. I do know that Temp Control drains the cells alot faster then Kanthal mode, 80 watts in temp control is prolly like 150 in Kanthal, but i still feel like i should be getting better life out of this LiPo. I did change it to max Puffs which should help and its now charging at 1amp which should also help. In the very near future iam just going to get a spare LiPo and a LiPo charger so i can just swap like what you do with 18650's but i think once i get this LiPo dialed in correctly i should be able to get 8-9 Hours out of 10.5 Watt/Hours