Laptop shutdowns at 48%

[Kannu123]

I own a HP laptop. From the past few days my laptop keeps on shutting down at 45%-50% battery remaining. Ii won't turn on until i plug in the adapter. 

[Riddle_Decipher]

@Kannu123 I have a few steps listed below that should help you resolve this concern:

Unplug the charge, Turn off the laptop and turn it back on after 30mins.

Reinstall Microsoft ACPI-Compliant Control Method Battery under device manager:

1) In the search box, type and open “Device Manager”.

2) Expand “Batteries”.

3) Right-click the "Microsoft ACPI-Compliant Control Method Battery" that is listed there.

4) Click on “Uninstall”.

5) At the prompt put a check in the box to remove the current driver

6) Shutdown the computer.

7) Remove the battery for a minute and then put it back in. (Skip this step if you have a non removable battery)

8 - When the computer comes back up it should automatically find the driver.

9) Go to Device Manager.

10) Expand Batteries.

11) Right-click the "Microsoft ACPI-Compliant Control Method Battery" that is listed there.

12) Click "Search automatically for updated driver software"

Do the same thing with Microsoft ACPI-Compliant Embedded Controller.

If the issue persists, run a battery and adapter test using the steps mentioned in this link: Click here

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[Kannu123]

Done both the steps. 

And the Hp support assistant says passed the battery test. Still No change. Shuts down at 50%

[Riddle_Decipher]

@Kannu123 here's what you need to do, If Windows suddenly shuts down without warning, it might be caused by one of several issues.
A BIOS update can also resolve the issue: click here for steps.

Follow the steps in this section, in order, to run an extensive hardware test to identify any issues with the device:

Install the latest version of the HP Hardware diagnostics (UEFI) on your device using this link: Click here for details

• Hold the power button for at least five seconds to turn off the computer.
• Turn on the computer and immediately press Esc repeatedly, about once every second. When the menu appears, press the F2 key.
• On the HP PC Hardware Diagnostics (UEFI) main menu, click System Tests.
• Click Extensive Test.
• Click Run once, or Loop until error.
• While the test is running, the time remaining and test result for each component display on the screen.

If a component fails a test, write down the failure ID (24-digit code) for when you respond back to us.

[Kannu123]

Did the bios update. Also ran the Extensive system test and no component failed the test. Still the laptop shuts down without any warning

[Riddle_Decipher]

@Kannu123 if the tests have passed, this could be an issue with the OS, and I suggest you backup all personal data and perform a system recovery: Click here for steps,

And good luck!