Continuing my observation with the battery, I see that battery drains by a few percentages even when it is switched off. I read online and found one of the culprit to be Fast Boot. So I disabled it, yet it seems to drain the battery. Another reason could be USB "Always powered on." Unfortunately, my bios doesn't have the option to disable it but it doesn't fit in the logic as to how current can still be flowing to the USB ports when the device is switched off.
Any idea how can I reduce, minimise this battery drain?
I am on windows 10, 22h2 build.