Sony PCG-R505ECP - Manual (Page 28)

VAIO® Computer Quick Start
28
To remove the battery pack
You can remove the battery pack while your computer is on or off; however, if
you remove the battery pack while your computer is on, make sure the computer
is connected to the AC adapter.
1 Close the cover of the computer.
2 Slide the Unlock/Lock switch to the Unlock position.
3 Slide the Unlock/Lock switch to the Unlock position and slide the battery
away from the computer.
Battery Indicator
Battery Indicator
Status
Meaning
On The computer is using battery power.
Single blink The battery is running out of power.
Double blink The battery is charging.
Off The computer is using AC power.
✍
Both the battery and power indicators blink when the battery is running out of power.
Battery Indicator