Sony VAIO PCG-9312 User Manual page 28

To remove the battery pack
1 Open the battery bay cover.
Pull out the battery pack.
2
Removing the battery pack
Close the cover of the battery bay.
3
You will lose data if you remove the battery pack while the computer is on
and not connected to the AC adapter or if you remove the battery while the
computer is in a power-saving mode
Notes on the battery
To determine the remaining battery charge, see "Displaying Battery
Information" in the online manual
When the battery power is running low, both the battery and power
indicators blink.
When the computer is directly connected to AC power and has a battery pack
in the battery bay, it uses power from the AC outlet.
See "Using a Second Battery Pack" on page 51 for information on installing
and charging a battery pack in the multipurpose bay.
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.
Connecting a Power Source
"Customizing Your VAIO® Notebook"
27