My daily vape is on a 14650 Epower with the 1.7ohm Ressurector cartos in a Smoktech 3.5ml tank.
It's obviously not the fanciest or most expensive set-up, but I love it. One Epower battery lasts me at least a full day, so I put a fresh battery in every morning and don't need to worry about getting stuck with a dead battery ever. Also the Reasurector cartos work awesome in a tank and give a nice warm vape with tons of vapor. The 3.5ml tank is perfect too bc it's big enough that I can fill it in the morning and not need a refill all day, yet it's still small enough that I can carry my PV in my pocket everywhere I go, even with the tank on it.
Between the EPowers long battery life and the Smoktech 3.5ml tank, I can vape all day day long and have a maintanace free vape, but still have a very portable PV