Battery Status Unknown

[MNUH]

Hi,

I use to check my laptop battery status almost daily from Hp support assistant, but since few days it's showing battery status unknown. I am unable to detect the condition of battery also how much charging capacity left in it.

I have tried many thing from internet but non of them seemed to work.

Need help.

Thanks

[MasterTechGuy]

First of all, shutdown the notebook, unplug the AC Adapter unplugged, remove the battery, and then hold down the Power button for a full minute.

Now, plug in the AC Adapter without the battery inserted, start the notebook, open windows Control Panel, open Device Manager, expand the entry for Batteries, right click on and the Microsoft ACPI Compliant Control Method Battery and select Uninstall - do not uninstall anything else here.  When the uninstall is complete, shut the PC down, unplug the AC Adapter, re-insert the battery and then start the PC on just the battery.  Windows will automatically reinstall the driver - leave Windows running for a few minutes. Shutdown the PC again.  Now plug in the AC Adapter ( with the battery still inserted ) and start the notebook.

Next, download, install and run the latest version of the HP Battery Check Utility, on the link below.

ftp://ftp.hp.com/pub/softpaq/sp49001-49500/sp49129.exe

(PLEASE NOTE THIS IS FROM A DIFFERENT QUESTION) Hope this can help you as its simular to the one you have. 

[MNUH]

Thanks for the reply.

I already have performed this step. It used to work before but it aint working now.

Any other suggestions?

Thanks

[ichi730]

Hi,

Kindly update the BIOS version

Regards

[MNUH]

Couldn't find any upadte of bios, most probably using the latest.