Solved Windows 8 shuts down on low battery with no warning

October 17, 2013 at 00:26:12
Specs: Windows 8, 8 GB
Windows 8 will shut down when my battery gets low and gives no warning. It actually doesn't even shut down, it just turns off. A little bit ago, I noticed that my battery was low, so I hovered over the icon and it said I have 11% left and 33 minutes left. Right after that I stood up to get my charger and as I was doing so, I heard the hard drive click off and the screen went black. It's done this to me several times and I'm just really getting bothered by it. Especially this time since I lost some unsaved documents that I spent a few hours on. I checked my power settings whenever it came back on and I was right in thinking that nothing should have happened. Here are my settings:
Critical battery level: 5%
Critical battery action: Hibernate
Low battery level: 10%
Low battery action: Do nothing
Low battery notification: On
Reserve battery level: 7%

I'm not entirely sure what the reserve battery level is for, but I know that at 11% (possibly 10% by the time I stood up) should display a notification and do nothing more. Then if the battery gets to 5% it should hibernate. It should never abruptly turn off, unless by chance it gets to 0%.

My computer is the U46E-BAL7 by Asus, running Windows 8.

Has anyone else had this trouble or know of a way to fix it?


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✔ Best Answer
October 17, 2013 at 10:51:59
I think he's wondering why the system went from a reported 10%-11% charge to dead. The answer is the battery lied to Windows. The workaround is to bump up the low / critical levels, the fix is to get a new battery.

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#1
October 17, 2013 at 00:42:22
If it's less than 12 months old it is still covered by the Asus warranty so contact them. You need to know for sure if it's a hardware fault and if it is, why should you pay for it if it's still covered by warranty? Let Asus check it out.

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#2
October 17, 2013 at 01:14:23
Alas my warranty has expired. I don't think it's a hardware issue though. I think it's more of a software one. I just want a notification mostly because I forget to check the battery level sometimes, so a notification before my computer just dies would be fine if you know of any third-party programs that would do that.

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#3
October 17, 2013 at 07:18:25
Windows is dependent on the hardware telling it how much battery charge remains. If the hardware is too optimistic, your battery may not have enough charge to complete hibernation.

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Related Solutions

#4
October 17, 2013 at 10:46:52
"Low battery action: Do nothing"

There is your answer, you have told it to do nothing when the battery gets low. If you want it to shut down properly, you need to change this to shutdown, hibernate, etc.


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#5
October 17, 2013 at 10:51:59
✔ Best Answer
I think he's wondering why the system went from a reported 10%-11% charge to dead. The answer is the battery lied to Windows. The workaround is to bump up the low / critical levels, the fix is to get a new battery.

How To Ask Questions The Smart Way


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#6
October 17, 2013 at 12:51:12
Razor, I think your post # 3 most likely describes the problem in that by the time it reaches 10% it may be too low to have time to report or shutdown or whatever he wants.

It may also be that the battery needs calibrating and that it's not showing the true percentage of power left. Try charging the battery all the way up, then let it completely drain a few times. This will calibrate the battery to the charging circuit.


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