Sony PCG-C1MV - Manual (Page 22)

VAIO® Computer Quick Start
22
Battery Indicator Light
Battery Indicator
Light Status
Meaning
On The computer is using battery power.
Single-blink The battery is running out of power.
Double-blink The battery is charging.
Off The computer is using AC power.
✍
Both the battery and power indicators blink when the battery is running out of power.
For some software applications and some peripheral devices, your computer may not
enter Hibernate mode when the battery life is low. To avoid loss of data when using
battery power, you should save your data frequently and manually activate a power
management mode, such as Standby or Hibernate.
Battery indicator
Battery