The battery is functioning, but the Windows battery meter may be inaccurate. You should follow HP's calibration steps. Alternative: HP PC Hardware Diagnostics (Outside Windows)
The battery has failed and should be replaced immediately. download battery check hp
Once installed, search for "HP Support Assistant" in your Windows search bar and open it. Running the Battery Check Diagnostic The battery is functioning, but the Windows battery
On the "My Dashboard" tab, look for the Battery section. The battery is functioning