Sony VAIO VPCYB SERIES - Manual (Page 19)

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Getting Started >
Using the Battery Pack
Using the Battery Pack
The battery pack supplied with your computer is not fully charged at the time of delivery.
Installing/Removing the Battery Pack
To install the battery pack
1 Turn off the computer and close the LCD screen lid.
2 Slide the battery LOCK switch to the unlock position.
3 Slide the battery pack diagonally into the battery compartment until the projection (1) on either side of the battery
compartment fits into the cut (2) on either side of the battery pack.