Battery not charging showing 99% available

[daphnedaphy]

Hi All,

I hope you guys are able to assist me.  I brought a HP Pavillion dm4 laptop last year September'10. My battery was able to charge for the past 1 year and suddenly now it shown "99% available (plugged in, not charging)"

With only AC power, I'm able to boot up my laptop. Otherwise, with only battery I'm unable to set up my laptop.

Could you please help me in this?

Millions thanks!

Regard,

Daphne

[DavidPK]

Hi Daphne,

First of all, shutdown the notebook, unplug the AC Adapter, 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 see if the notebook will start 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 to see if this has helped the issue at all.

Regards,

DP-K

[kamatr · Accepted solution]

I guess battery has gone bad and needs to be replaced. Download and Install HP Support Assistant from here and follow instructions from below link to run a test on your battery

http://support.hp.com/us-en/document/c00821536

[daphnedaphy]

Hi David,

Thanks for the workaround. However, I'm still unable to turn on my laptop with the battery after uninstalling "Microsoft ACPI Compliant Control Method Battery " And it still show the same but it 98% available (Plugged in, not charging)

But my laptop is just less than a year and it suddenly happened just 2 days ago.

Can you please advise?

Thanks,

Daphne

[daphnedaphy]

Hello,

Thanks for your workaround too. I have checked my HP battery and it show Primary Battery is reporting a failure and need to be replaced soon. And it show a Failure ID, however this happen too sudden will HP Support Center exchange one for one to it?

Thanks,

Daphne

[kamatr]

Contact HP Technical Support and provide the Failure ID of battery health check and you should have battery replaced within 24-48 business hours for free of cost

[daphnedaphy]

Thanks for your workaround, I have contact HP and they are sending me a replacement battery.

Thank you!

[Chathuranga94SL]

What is meant by Primary (Internal) Battery? CMOS battery or the main battery