I think we will get there as we are know working on reducing power consumption through firmware and driver tweaks. I think we need to change the wording on our website as before we said just 48WH and all day battery life but then people asked for exact hours it seems that everyone has very different use cases and providing hours is not really the best way. We will change to different scenarios I think.
We've built V so that it can last all day or then it can give max performance. You get to decide what you want from it. We wanted to put all the power we could to this device so no one would call it "just a tablet"(we beat Asus transformer i7 U with our I5 Y CPU for example . But most of the time you would not need all of that power maxed out.
So for example if we look at things like audio amp and speakers. We put really powerful ones to V and if you want to have max volume they will consume power but you don't have to put max. Same goes for screen it is one of the brightness screens out there and if using it at 100% will definitely drain more battery life. Also for example adjustable TDP. You can increase your TDP to 11 watts if you want and it will cause performance increase but you don't have to.
I ve been using V i5 for work (Excels, some photoshop, browsing, etc) and I don't need to put my TDP over 4.5w as I experience no lag during my use.
So with V we wanted to make sure that you have that freedom to decide how much power you can consume.
If you keep things maxed out power consumption will triple than if you use V at default settings.
Generally its all about battery capacity. So if we would put 60WH battery we would not have it care about even optimizing the firmware and drivers. But 60wh would make device much thinker and heavier so 48 was pretty much max.
We will keep rolling the update to users when they get their V's.