2 hour battery life when running Windows 8.1 on rMBP

I installed Win 8.1 on a late 2013 15 retina only last week and on the high performance power plan it's just over 3 hours of battery life. With no integrated/discrete graphics switching You can extend it slightly by tweaking the power manangement settings to balanced and adjusting the power settings in the Nvidia control panel but that has the drawback of sacrificing the performance of the PCIe SSD which drops a lot when not on max performance setting.

This poor battery life under windows is one of the reasons why I use a 2011 17 inch MBP, the huge battery gives me over 4 hours use in Windows 7 x64 with bootcamp!

Macsfancontrol is a must for bootcamp users

http://www.crystalidea.com/products?ref=fancontrol_win

I have the same configuration on the latest MacBook Pro and I get over 6 hours of battery life in Windows. Did you install the Boot Camp Drivers?

Being so early in the morning here I relized I mistyped this. I get over 3 hours of battery life when I run Windows 8.1 via Bootcamp.

I had the same exact issue. Hope you resolved it by now, but here is what worked for me:

http://www.imore.com/how-resolve-battery-life-troubles-your-retina-macbook-pro

The first method was sufficient to fix my battery life.

On Bootcamp Windows 8.1 (fresh installation with all drivers) I had a battery life of ~3 hours. After the fix it bumped to ~8 hours.

That didn't do the trick for me. I still get ±2.5 hours on a full charge when using Windows 8.1 on my Macbook pro retina 15 inch from late 2013.

I have the same issue i get around one hour running Win 8.1 on my MBP late 2013 high end

boot camp drivers all installed properly