Sony PCG-F180 - Manual (Page 46)

VAIO Notebook Computer User Guide 36
Using a Second Battery Pack
You can purchase a second rechargeable battery pack. With two battery
packs, you can extend the time that you use your computer with battery
power. When using two battery packs, the battery pack you insert first
charges first. The battery pack you insert second charges when the first
battery pack is 85 percent full. You can monitor which battery pack is
charging by observing the battery indicator lights.
To insert a second battery pack
1
If another device is in the drive bay, remove the device. See “To
remove the floppy disk drive” on page 26.
2 Insert the battery pack into the drive bay.
If the battery is being used, the battery 2 indicator light turns on.
3 Attach the weight saver to the computer to stabilize the battery pack.
See also “Using the Weight Saver” on page 38.
Battery pack
Drive bay
Label side facing down
Battery pack
Weight saver