Power plugged in, power on PC, charging light solid blue. THe moment it reaches Windows 10 login screen, the charging light turns to slow blinking orange. After login, Windows show it is running on battery. I need to unplug and plug back in, and it will turn into solid blue light again.
HOWEVER, if I start the PC when it is NOT plugged in, login into Windows 10, then plug in the power, the charging light will stay solid blue, and never change to blinking orange.
It seems that somehow when plugged and booting, the moment it reach the Windows login screen, it will immediately not detect the charger.
I have done the 5 second pinhole reset, the issue persists. Battery is NOT removable.
[ Title edited to add the name of the product]