Sony PCG-GRV550 - Manual (Page 15)

Using the Battery
15
Removing a battery
If you are not using the computer for an extended period of time, remove the
battery from the computer to avoid damaging the battery. You can remove the
battery when the computer is on or off.
To remove a battery
1 Push the battery bay cover down to open it.
2 Pull the battery out of the battery bay.
3 Push in and lift up the battery bay cover until it clicks into place.
Using a second battery
To insert a second battery
1 If another device is in the multipurpose bay, remove that device.
2 Insert the battery into the multipurpose bay. When the computer uses the
second battery, the Battery 2 indicator turns on.
If the computer is on, connect the AC adapter and exit a power saving
mode before you remove the battery.
Removing a Battery