Sony VAIO VGN-A600 Series Quick Start Manual page 31

Securing the Battery
6 Slide the LOCK/UNLOCK switch to LOCK.
7 Connect the AC adapter to the computer. See "To connect the AC adapter"
on page 32.
Once you connect the AC adapter to the computer, the battery begins to charge
whether the computer is on or off. The battery indicator
status. The indicator blinks as the battery charges. See "Powering Your
Computer" in your on-screen VAIO® Computer User Guide for more
information.
Turning On Your Computer
shows the battery
31