surface book battery drain while shut down

Anonymous
2015-12-09T16:09:58+00:00

Split from this thread.

I have been noticing that when I shutdown my surface book, when I power it on the next day the battery has drained some. If I leave it off for a couple of days it will drain down from 100% to around 85% or lower.

I disabled fast startup... and then just decided to disable hibernation altogether. That didn't help.

I have windows hello disabled, but that shouldn't matter anyway since I'm shutting it down, not sleeping.

Some searching and I found a general windows 10 issue with the "Intel Management Engine Interface" driver. Some say that v11 can cause this issue. One solution that I have seen suggested is to go into device manager and in the power management tab for this device uncheck the option that allows windows to power it down to save power. I tried that and it didn't help.

Others have suggested downgrading the driver from v11 to v9 or v10, but I don't know where to get v9 or v10 of this driver that is compatible with the surface book. Anyone know if one of the downloads on Intel's site would be compatible?

So, has anyone else noticed this issue and know of a fix?

Surface | Surface Book | Power and battery

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  1. Anonymous
    2015-12-11T17:54:17+00:00

    Also self-discharging is not linear. It is faster in the first  24 hours.

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  2. Anonymous
    2015-12-11T17:50:34+00:00

    All lithium ion batteries self-discharge. At 25 C, it is typically to loose 25% charges after one month without any use.

    http://batteryuniversity.com/learn/article/elevating\_self\_discharge

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  3. Anonymous
    2015-12-11T17:16:26+00:00

    On that note, BB, I think one problem is that it's hard for us to know which problems are from Windows 10, which are from Skylake, and which are from the SBs themselves. All three are new and any could be the problem, so at what point do we return the SB for a different unit?

    Any good articles out there compiling complaints from new laptops such as the Radius, the Yoga 900, Spectre x360, etc. that all use Skylake and Windows 10 now? If not, you should write one up!

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  4. Anonymous
    2015-12-11T16:59:02+00:00

    If any Macs were currently using Skylake, then they would probably have the same driver and power mgmt issues we're having. It's also related to Windows 10 and hardware/driver compatability. They will iron out the kinks soon and give us better battery life. The question is, can you wait? If you can't, then don't. End of story.

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  5. Anonymous
    2015-12-11T16:48:49+00:00

    I have to agree. The SB should not lose any charge while completely off. My 2011 MBP doesn't lose any when it's shutdown. I am tired of all the Microsoft apologists saying otherwise.

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