Sony PCG-F420 User Manual

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VAIO
® 
Notebook User Guide
Using Battery Power
You can use one or two battery packs as a source of power. The second 
battery pack inserts into the multipurpose bay on the right side of the 
computer. (See “Using Power Saving Modes” on page 36.) Additional 
battery packs are available as a separate option.
The battery pack that comes with your computer is not fully charged at 
the time of purchase. Follow the steps below to insert and charge the 
battery pack.
To insert the battery pack
1
Open the cover of the battery bay.
2
Insert the battery pack into the battery bay on the left side of the 
computer.
3
Close the cover of the battery bay until it clicks.
When attaching your computer to the port replicator, do not attempt to insert or remove the 
battery pack. Lifting and turning the computer with a port replicator attached could cause a 
temporary loss of power.