10
VAIO Notebook Computer User Guide
To charge the battery pack
1
2
Connect the AC adapter to the computer.
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 two to four hours. The time varies based on your system configuration. See “Displaying Detailed Battery Information” on page 71 for information on checking the battery life.
There are two battery indicator lights on the computer:
Battery indicators
1 
2
Secondary battery pack (not supplied)
Battery pack (supplied)
Battery Indicator | Meaning |
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2
Indicates the status of the battery pack in the battery bay on the left side of the computer.
Indicates the status of the battery pack in the drive bay on the right side of the computer.
Battery Indicator |
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Light Status | Meaning |
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On | The computer is using battery power. |
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Single blink | The battery is running out of power. |
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Double blink | The battery is charging. |
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Off | The computer is using AC power. |
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