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  1. #1
    Ratchet
    Member #
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    Jun 2011
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    Other - Windows
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    why does the keyboard dock drain my battery?

    I have completely re-set the device and the BIOS is the latest (307) and the device drivers are the latest from the Asus website.

    Day 1

    9pm - docked, and left to sleep; the battery was 79%
    11pm - woke it from sleep; the battery was 68%

    i.e. about 5% an hour drain when docked and sleeping.

    Day 2

    8.30am - having left it to sleep undocked, the battery was 67%

    Day 3

    1pm - over 24 hours later, undocked and sleeping, the battery was at 63% - it lost just 4% over 30 hours!!

    Fantastic battery life when undocked, but as soon as I dock the thing, the battery just drains away.

    I have turned off the camera to come on with a downward stroke, so it can't be that.

    Any ideas are truly welcome.

    rjstep3
    T100HA 64GB
    T100 64GB (now retired in the light of the HA)

  2. #2
    rscheller
    Guest
    Great post but need some more info.

    I assume you don't have anything plugged into the USB port on the dock... nor have any weird issues when docked other than battery drain? It's likley something with your touchpad.
    Look in task manager docked and un-docked and see if there are any programs/apps using more/less of CPU/memory.

    Are you a Chrome browser user? What anti-virus do you use?

  3. #3
    Ratchet
    Member #
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    Hi rscheller

    thanks for the reply - this is absolutely vanilla, so no Chrome, no AV other than W8.1 standard, nothing, that is why I reset the thing to see what was wrong.

    From Task manager, there is nothing obvious when docked to explain the 5% per hour drain on the battery, no process hogs that I can see. That is why I find it really strange.

    rjstep3
    T100HA 64GB
    T100 64GB (now retired in the light of the HA)

  4. #4
    rscheller
    Guest
    Perhaps someone else can help.

  5. #5
    Jazz
    Member #
    66463
    Join Date
    Feb 2014
    Tablet
    TF Book T100
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    Does your dock come with a hard drive? I won't know how much the battery is affected by those docks so if someone with one can elaborate on that.

  6. #6
    DKL
    DKL is offline
    Ratchet
    Member #
    72111
    Join Date
    Aug 2014
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    TF Book T100TA
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    32 times
    You say while asleep. Does this happen when it is off as well?

  7. #7
    Chief Customizer & Super Moderator
    Supporting Member

    Member #
    47492
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    Oct 2012
    Tablet
    TF700
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    If you guys have the dock, can you explore more around the difference between battery drain (if any) when the tablet is not in use (and should be in deep sleep) docked versus undocked?

    We had the same mysterious "battery drain while sleeping docked" on the TF700. Could be a similar issue....

  8. #8
    Soundwave
    Member #
    71991
    Join Date
    Aug 2014
    Tablet
    TF Book T100
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    sorry to thread bomb - how did you turn off the camera swipe down option?

  9. #9
    rscheller
    Guest
    charms>search>camera lockscreen

  10. #10
    Ratchet
    Member #
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    I'm surprised there aren't a lot more people with this - perhaps people use the thing more as a tablet than a netbook. For me the easiest way to carry and keep the thing is docked and with the lid shut - but the battery would drain away overnight.

    rjstep3
    T100HA 64GB
    T100 64GB (now retired in the light of the HA)

 

 
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