Not if you are vaping at 40w constantly. How many times/day do you fill this 8ml tank?
There are a lot of factors determining how long the batteries will last YOU between charges. Compared to others, you can get a general idea.
1) Mod efficiency (chip/board efficiency) can affect vape time
2) Wattage vaped at if using a regulated mod. You can pretty much ignore the coil resistance with a regulated mod, just raise/lower the wattage as needed.
3) Vaping style/habits. How often are you vaping this at that wattage.
Anything anyone tells you will be very general as it applies to you. You kind of have to try it yourself and see. Comparing to others is going to be a rough comparison unless you have the same mod, same batteries, same coil, same wattage and same vaping habits.
All of the batteries above will work. Of the three you listed, the LG HG2 would likely give you the longest runtime. Again, vaping habits can affect how a battery performs. A VERY SOLID 2500mAh battery might give you better runtime that a 3000mAH if you are running it hard. If you are only pushing 40w, then I would go with the HG2 personally.
You're going to have to try them and see how long they last for you. What lasts a full day for me, might last another person 2 days, and another person 6 hours depending on how hard they are running the batteries.
It's better not to completely drain them anyways. Even if you can get a full 2 days from them, it will stress the batteries less by charging them daily.
If you are going though 8ml of liquid in an hour, then you aren't going to get a full day from a single battery at 40w unless you only vape 1 tank/day.
How many ml/day are you vaping? I would go to a higher nic strength depending on that unless you just enjoy chain vaping all day. Higher nic juice will result in you vaping less often (unless you are vaping just to vape).
If that's a single battery mod, get a few batteries so you can have a backup charged and ready to go. And please have a battery case or sleeve to carry the spare in when you take it with you. Batteries tend to short out and explode when carried around carelessly.