Sony Vaio PCG-C1VFK User Manual page 19

Using your notebook
Charging the battery pack
To charge the battery pack, proceed as follows:
1 Connect the AC adapter to the computer.
2 Insert the battery pack.
The computer automatically charges the battery (1) (the battery indicator (2) light flashes in a double
blink pattern as the battery charges). When the battery is 85% full, the battery indicator light turns off.
This process takes approximately one and a half hours. To charge the battery completely, continue
charging for an additional hour.
battery indicator light status
on
single blink
double blink
off
When the battery is running out of power, both the battery and power indicators blink.
Keep the battery pack in the computer while it is directly connected to AC power. The battery pack continues to charge while you are using the
computer.
meaning
The computer is using battery power.
The battery is running out of power.
The battery is charging.
The computer is using AC power.
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