[brosenz]

Yesterday I placed my new SB with Performance Base (i7/1TB) in sleep mode for the first time, before it was always plugged, and noticed and excessive battery consumption, at the level of 10-20% per hour, with no applications running, no wifi and no notifications. Then I found "sleepstudy" so I run some test and reports and here are the results, as you can see the application PLM(5000): Microsoft.SurfaceHub_8wekyb3d8bbwe!App is consuming 100% of the CPU all the time, I have looked around in Google and I have not been able to find anything about, any hint on what this could be? How can I fix it?

[Dush Ku]

i definitely noticed some extra battery drain during use and sleep after an update back around October or so.

[zerospace-net]

I see this off and on on my Surface Book (older version, not the i7 Performance Base) -- some days it drains excessively, other days it's fine.