Sony PCG-R505JSP Manual

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Connecting a Power Source
29
The 
 battery indicator on the front of the notebook indicates the
 
status of the 
battery pack.
To remove the battery pack
You can remove the battery pack while your notebook is on or off. However, if 
you remove the battery pack while your notebook is on, make sure the notebook 
is connected to the AC adapter.
1
Close the cover of the notebook.
2
Slide the lock lever to the UNLOCK position.
Battery Indicator
Battery Indicator 
Status
Meaning
On
The notebook is using battery power.
Single blink
The battery is running out of power.
Double blink
The battery is charging.
Off
The notebook is using AC power.
Both the battery and power indicators blink when the battery is running out of power.
Battery Indicator
Battery Pack 
(supplied)