Precision 5540 - Windows 10 Login - sudden battery drain

Hello,

on my Precision 5540 I have Windows 10 installed and strange things happen recently.

If I shut down my PC over night and then remain plugged in the power socket, in the morning when I pick up the laptop -> then remove the power and switch it on when I start Windows, while login in it will TURN OFF while login in directly
-> then if I plug it to power I can see that battery is 0%.

I tried following:

before going to windows I go to BIOS or diagnostic -> I can see that battery health is good and battery is charged .....

but again while login in into windows it thinks that no battery charge is there and it shuts down.

If I charge later the batter while logged on Windows and I unplug the power -> computer works ok and gives me chance to use my computer on battery long time.

It seems that only while logging in to Windows it things that battery is 0%.

I did battery diagnostics and everywhere the health is stated good.

Power option for battery use is set to balanced.

Any ideas what could be the problem?