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Thread: Asus t100 sleep battery drain problem - share your battery life & settings info

  1. #121
    Ratchet
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    Quote Originally Posted by MallyRain View Post
    I feel tempted to open the dock and disconnect the drive to find out if it's the culprit
    dont bother.

    i noticed my 32gb version does the same docked takes 2 to 3 percent an hour undocked takes 1 percent in 5 to 6hrs. sometimes takes 4_5 percent an hour

  2. #122
    Soundwave
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    I sure many of us would have noticed that the T100 would randomly drain more battery during sleep even after closing every running apps. It would either mysteriously go back to normal or need to restart.

    A powercfg /sleepstudy report shows the HW at 0% which I asssume to mean that the Hardware spent 0% of the time in CS when normally it would be above 96%. The rest of the entries are green.

    I have noticed that this battery drain usually happens after playing some youtube or similar streaming videos. I have managed to get it back to the normal battery drain without restarting by turning on airplane mode and then turning it back off. It would seem that the wifi is preventing the HW from sleeping after playing the videos (my bluetooth is off).

    Anyone else have the same observations?
    Last edited by eyesee; 03-05-2014 at 02:10 AM.

  3. #123
    Soundwave
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    Hi,
    Does any User DK005 versione of asus T100TA ? Can you share battery consumption,please? When I insert sleeve on keyboard current drain doubled......from 10 ours to 5....
    Thank you
    Dennis

  4. #124
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    Quote Originally Posted by dabuthegreat View Post
    In my case, if I "safely remove hardware", that is T100 HDD, it doesn't drain during sleeping in my bag. The tab can still be connected with the dock, but the disk isn't running.

    Just thought I'd share it with you, don't know if you've tried that.
    Do you have to activate the HDD manually?

  5. #125
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    Quote Originally Posted by vdennis View Post
    Hi,
    Does any User DK005 versione of asus T100TA ? Can you share battery consumption,please? When I insert sleeve on keyboard current drain doubled......from 10 ours to 5....
    Thank you
    Dennis
    I didn't use any sleeve.

    The harddisk will not drain battery at such a rate, unless it is running constantly, such as when downloading.

  6. #126
    Soundwave
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    asus t 100 dk005

    Quote Originally Posted by sg100 View Post
    I didn't use any sleeve.

    The harddisk will not drain battery at such a rate, unless it is running constantly, such as when downloading.
    Sorry, sleeve means ASUS T100.
    I have power battery Bar and when I connect Asus T100 on keyboard with internal HDD, predicted hour go down from 10 to 5-6 discharge.....
    But I don't use HDD.

    Thank you
    Dennis

  7. #127
    Soundwave
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    Quote Originally Posted by dabuthegreat View Post
    In my case, if I "safely remove hardware", that is T100 HDD, it doesn't drain during sleeping in my bag. The tab can still be connected with the dock, but the disk isn't running.

    Just thought I'd share it with you, don't know if you've tried that.
    Excellent tip! Haven't thought about that, I will test it and let everybody know.

  8. #128
    Soundwave
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    Quote Originally Posted by MallyRain View Post
    Excellent tip! Haven't thought about that, I will test it and let everybody know.
    Yes very FANTASTIC TIP, Itried works!
    But after if would use HDD , how is correct procudere?
    TNX
    D.

  9. #129
    Jazz
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    Quote Originally Posted by sg100 View Post
    Do you have to activate the HDD manually?
    Well, yes. Then I just reconnect it with the dock by unplugging it and plugging again.
    sg100 likes this.

  10. #130
    Soundwave
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    Quote Originally Posted by shahali View Post
    dont bother.

    i noticed my 32gb version does the same docked takes 2 to 3 percent an hour undocked takes 1 percent in 5 to 6hrs. sometimes takes 4_5 percent an hour
    Quote Originally Posted by dabuthegreat View Post
    In my case, if I "safely remove hardware", that is T100 HDD, it doesn't drain during sleeping in my bag. The tab can still be connected with the dock, but the disk isn't running.

    Just thought I'd share it with you, don't know if you've tried that.
    Well, I tried "safely removing HDD". It did not help. It reduced the drain somewhat but it still did not compare to when the T100 remained undocked. I got similar results as shahali's, that is 2-3% drain per hour (in comparison to 4-5% drain while the HDD was connected).

    My recap:

    T100 undocked: no drain (3-5% / 24h)
    T100 docked/asleep, lid closed: severe drain (4-5% / hour)
    T100 docked/asleep, lid opened: severe drain (4-5% / hour)
    T100 docked/asleep, lid opened, HDD "safely removed": still severe drain (2-3% / hour)

    In any case, the T100 was not especially prepared, no tasks/applications were killed, no tiles/apps removed, no turning off wi-fi, toggling airplane mode or otherwise treated as in preparation for a test. Just after some normal use, I put it to sleep.

    It appears that:

    As some solutions seem to work for some people, it would indicate that the cause of the problem does not remain the same. Although everything seems to point to the dock. Even after disconnecting (more precisely "safely removing") the HDD it's circuitry remains "awake" and drains energy.

    Some of you guys report that turning off "wake up by device" for touchpad / keyboard resolved this issue. That could be it, since this is (apart from HDD) about the only other thing in the dock I can think of that needs energy - to monitor keypresses / touchpad. I tried disabling "wake up" option in device manager, but it didn't work - the touchpad and keyboard still can be used to wake the T100. Can anyone shed the light on how they disabled this feature effectively?

 

 
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