How can I tell what the battery light indicator means on my EliteBook 840 G11?

When AC power is connected, a white battery light means the charge is greater than 90%, amber means the charge is between 0 and 90%, and off means the battery is not charging. When AC power is disconnected, a blinking amber light means the battery has reached a low level, and rapid blinking amber indicates a critical battery level. (Page 15)