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WinPE3.0 wmic Get battery status is not working

Posted on 2013-12-16
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Last Modified: 2014-01-07
Hello guys,

I need to get the status of laptop battery in WinPE mode. I want to know if it is charging or not.
I am using wmi for this via "C:\> WMIC Path Win32_Battery Get BatteryStatus"
but I always get the "Intance(s) not installed" error message.
I have added wmi, hta and scripting components to wim image. But still it won't work.
Who can shed me some light on this problem? This is pretty urgent.
Thanks
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Question by:noxcho
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7 Comments
 
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Accepted Solution

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jss1199 earned 500 total points
ID: 39721778
You need to load the battery driver in WinPE - using either drvload or installing in the PE image.

You will then get a return on your WMIC query where BatteryStatus = 2 (The system has access to AC) or BatteryStatus = 1 (The battery is discharging).
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LVL 19

Expert Comment

by:jss1199
ID: 39721781
Meant to add the cmd to load the driver:

drvload %SystemRoot%\Inf\Battery.inf
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LVL 47

Author Comment

by:noxcho
ID: 39722099
Excellent jss1199, I will try it and post back what I get!
I can add the batter.inf driver via DISM as well to wim image, correct?
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Expert Comment

by:jss1199
ID: 39722117
Correct as to dism
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Author Comment

by:noxcho
ID: 39725154
Ok, it worked once. I decided then to start from scratch because after many attempts my system was pretty dirty. I reinstalled WAIK3.0 and run the dism commands like here: http://www.symantec.com/connect/articles/adventures-winpe-31
Added Battery.inf (to some reason the file from my laptop was not signed!!! and I am building x86PE) but still it is not working now. Am I missing anything?
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LVL 47

Author Comment

by:noxcho
ID: 39726284
Ok, looks like WinPE cannot load Battery.inf driver automatically and needs always drvload to be used.
Maybe Microsoft limited it to specific driver load or the driver itself does not have autoinitiate command.
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Author Closing Comment

by:noxcho
ID: 39761478
Very good advice! Thank you very much.
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