I just had that exact same problem. I was stuck at 11% and I would unplug and plug back in. So, I did what I had to do: mess with my precious laptop ;_; Just kidding. I went to the HP site or http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01174488&lc=en&dlc=en&cc=us&product=3806991&os=2100&rule=6701〈=en
My battery is now charging. As I type, it went from 11% to 32% and it is plugged in and charging. Says so. So! I hope this solves your problem too. Downloading BIOS files are overrated....Kidding.
For easy access, I'll just use the ol' copy paste method.
- Click Start and type device in the search field, then select Device Manager .
- Expand the Batteries category.
- Under the Batteries category, right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall .
WARNING: Do not remove the Microsoft AC Adapter driver or any other ACPI compliant driver.
- On the Device Manager taskbar, click Scan for hardware changes .
Alternately, select Action > Scan for hardware changes .
Windows will scan your computer for hardware that doesn't have drivers
installed, and will install the drivers needed to manage your battery's power. The notebook should now indicate that the battery is charging.