Ok..you did see that I said that I'm only going
through about 3ml per day, right? If you are sub-ohming, etc., you are using your battery WAY more than I am! You have to take that into account. It takes much more power for a battery to power at higher watts than low watts, like I
vape. I"m more nice and easy, slow and steady. No cloud chasing for me. Your battery is working harder, therefore it is not going to last as long. I would look on Innokins website and see what they say for battery life. Aren't they only 2200MaH?
JMHO.