HP Compaq Presario C310EU Notebook PC - Manual (Page 34)

Component Description
(3) fn+f5 Initiates standby.
(4) Battery light On: A battery pack is charging or is close to full charge capacity.
Blinking: A battery pack that is the only available power source has
reached a low-battery condition. When the battery reaches a
critical low-battery condition, the battery light begins blinking
rapidly.
Off: If the computer is plugged into an external power source, the
light is turned off when all batteries in the computer are fully
charged. If the computer is not plugged into an external power
source, the light stays off until the battery reaches a low-battery
condition.
*There are 2 power lights. Both display the same information. The light on the power button is visible only when the computer
is open; the other power light is always visible on the front of the computer.
28 Chapter 3 Power ENWW