What do the battery light colors mean on the HP 255 G6?

When AC power is connected, a white battery light means the charge is greater than 90 percent, and amber means the charge is from 0 to 90 percent. When AC power is disconnected, a blinking amber light means the battery has reached a low battery level, and rapidly blinking amber indicates a critical battery level. If the battery light is off while AC power is connected, the battery is not charging. (Page 6)