Sony VAIO PCG-X18 User Manual page 22

Using Your Notebook Computer
Connecting a Power Source
To charge the battery pack
1
Connect the AC adapter to the computer.
2
Insert the battery pack.
The computer automatically charges the battery (the battery indicator light flashes in
a double blink pattern as the battery charges). When the battery is 85 percent full, the
battery indicator light turns off. This process takes approximately two hours. To
charge the battery completely, continue charging for an additional hour.
A fully charged battery pack supplies power for approximately 2 to 3 hours. The time
varies according to your system configuration. See your Software guide,in
"Displaying Battery Information" for information on checking the battery life.
There are two battery indicator lights on the computer:
Battery pack
(supplied)
Battery indicators
Secondary battery pack
(not supplied)
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