There's a lot of variation in vape time for a given battery size. Coil resistance, single or dual coil, power level selected (whether you get there via VV or VW), length of draw, chain vape or not
The mAh rating of the battery can provide a relative indication of how long it may last for a given person's style. So if say the 800 mAh VV3 lasts you half a day, the 2600 mAh MVP "should" go a day and a half. The old "rule of thumb"was 1 hour vaping per 100 mAh battery rating. But it IS just a ballpark guess.
It's also important for longer service life (not vape time) to NOT run your battery down to shut-down state. They last longer if you recharge before that. I have three 1300 Spinners, all over a year old, and all still going strong. When I was using them exclusively, I'd just vape one all day, then swap to another and charge it.