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Asus ux31 "Plugged in, not charging"

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  • Asus
  • Light
  • Green
  • Laptops
Last response: in Laptop Tech Support
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February 17, 2013 5:46:25 PM

My Asus ux31 ultrabook suddenly decided to stop charging this afternoon. The charger has a steady green light, and the windows status is "Plugged in, not charging". I've restarted, tried different sockets, etc. No change. Any suggestions?

More about : asus ux31 plugged charging

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a b D Laptop
February 17, 2013 7:52:43 PM

"Plugged in, not charging"

Not necessarily a fault or error. When the battery is fully charged (100%) the charging circuit is automatically disconnected until the battery falls below 100% again. This prevents the battery being overcharged.

That's the same message I see on my laptop when the battery is fully charged when I mouse-over the battery icon.
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February 17, 2013 8:21:40 PM

Sorry, should have specified. The laptop was draining while giving the message. As in, under 20%. However, it seems to have solved itself after a few restarts anyways.
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February 17, 2013 8:21:40 PM

Best answer selected by claec.
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October 3, 2014 8:48:52 AM

Hi - hoping people find my solution useful. I have an ASUS UX32A, but am guessing that this problem is common to their Zenbooks. When the laptop is fully charged, it will say "plugged in, fully charged", unfortunately, some laptops just stop charging the battery and the light on the plug blinks red and green meaning a fault, and will never charge again. I have read in other threads that this can be fixed by uninstalling drivers and unplugging the battery, but this has to be done constantly. On my UX32A the battery went down to 4% and refused to charge at all, even when shut off. But I figured out what the problem was: it is in the BIOS settings, for USB charging when off, and allow laptop to go into low power mode when off. These settings were ENABLED on mine the day the problems started, and the problems stopped when I disabled them. So it must be a bug in the BIOS. If you have the same problem, try changing these settings in the BIOS.
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October 4, 2014 1:55:27 AM

rwbrussels said:
Hi - hoping people find my solution useful. I have an ASUS UX32A, but am guessing that this problem is common to their Zenbooks. When the laptop is fully charged, it will say "plugged in, fully charged", unfortunately, some laptops just stop charging the battery and the light on the plug blinks red and green meaning a fault, and will never charge again. I have read in other threads that this can be fixed by uninstalling drivers and unplugging the battery, but this has to be done constantly. On my UX32A the battery went down to 4% and refused to charge at all, even when shut off. But I figured out what the problem was: it is in the BIOS settings, for USB charging when off, and allow laptop to go into low power mode when off. These settings were ENABLED on mine the day the problems started, and the problems stopped when I disabled them. So it must be a bug in the BIOS. If you have the same problem, try changing these settings in the BIOS.


can u teach me how to check if the settings were enabled?and how to disable them ?

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October 16, 2014 12:54:41 AM

> can u teach me how to check if the settings were enabled?and how to disable them ?

Yes - if you have the problem that the laptop is obviously plugged in but it says it is not charging, shut down the machine, and then hold F2 and start the laptop and it will go into the blue screen BIOS. Look in the different tabs or sections (depending upon the BIOS) until you find something like "USB Charging When Off" or "USB Charger +", and if this is enabled, disable it. Also disable the setting for "low power mode when off". Then save the settings and reboot. These were the problem on mine; being on they caused the laptop to always say "plugged in, not charging" until the laptop batteries went dead. Probably Windows 8.1 is asking the BIOS for the state of the battery and the charging system and these settings are interfering and causing it to report an error, so Windows tells the charging system to shut down...

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