Asus VivoBook 15 X540UA E-Manual page 22

Power indicator
The power indicator lights up when the Notebook PC is turned
on and blinks slowly when the Notebook PC is in sleep mode.
Two-color battery charge indicator
The two-color LED provides a visual indication of the battery's
charge status. Refer to the following table for details:
Color
Solid White
Solid Orange
Blinking Orange
Lights off
22
Status
The Notebook PC is plugged to
a power source and the battery
power is between 95% and
100%.
The Notebook PC is plugged
to a power source, charging its
battery, and the battery power
is less than 95%.
The Notebook PC is running on
battery mode and the battery
power is less than 10%.
The Notebook PC is running on
battery mode and the battery
power is between 10% to 100%.
Notebook PC E-Manual