Laptop turns off when unplugged

[KarenCTran]

My battery and AC charger are functional.

My laptop turns off when I unplug the charger.

I updated the drivers and BIOS.

What do I need to do?

[WAWood]

@KarenCTran 

How have you determined that your battery is "Functional" -- as when this happens, that tend to indicate the battery is dead, too low to power the laptop, or unable to hold a charge.

[KarenCTran]

Thank you WAWood. HP Battery Check tells me that the battery is OK.

[WAWood]

@KarenCTran 

OK ... then the battery should be OK.

You can check the battery to some extent using Powershell built into Windows 10, as follows:
1) Press Windows key + X
2) Click Powershell in the menu
3) Type powercfg /batteryreport

This will generate a report and if you scroll down, you will see Design Capacity and Full Charge Capacity ratings. If the Full Charge Capacity is less than 50% of the Design Capacity, it is faulty and needs to be replaced.

Also note the figure alongside the "Cycle Count". This tells how many times the battery has been fully recharged. A typical battery can handle around 500 charge cycles, but some will fail sooner than that.

[KarenCTran]

Thanks

Done

100%

Every single last one.

What now?