Fully charged battery turns off AC

After the last windows installation updated, I noticed a strange behavior of the battery/AC mode.

When the battery charge reaches 100% the indicator AC is turned off and the laptop running on battery power (decrease its performance even by selecting high power plan Performance).

If the power cord is unplugged then replugged the AC light is on until the battery is fully charged again, as soon as the battery is fully charged notification windows battery icon changes of "99% available (plugged in, load)" "full" and then AC is turned off and the laptop starts to run the battery.

This problem started after windows installed automatically updated, no BIOS or computer laptop specific software have been updated.

Model: Sony Vaio VPCF23BFX

Does anyone know how to fix this? I want the laptop to run AC AC is plugged in, even if the battery is fully charged.

Thank you.

Hello Rafael,.

Please keep us updated on the status of the issue.

I'm sorry for the late reply.

I appreciate your efforts and your time.

I suggest you use the suggestions in this article and check if it helps.

Reference:
VAIO laptop battery failures
https://us.en.KB.Sony.com/app/answers/detail/A_ID/42608/p/48903, 49902,53617,53672/c/65,66/kw/vaio%20battery%20troubleshooting%20guide

Note: Changing the BIOS / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

I hope this helps.

Thank you

Tags: Windows

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