Macbook Pro 15 as an (almost) exclusive windows 10 machine?

[kevinof]

2015 with dGPU for me is usually 4-5 hrs

My screen brightness is only 20% - maybe that's the difference?

 

[holden j caufield]

If you aren't doing anything gpu intensive running windows as a virtual machine is the way to go. Vmware full screen is practically the same as running it native.