Sony PCG-TR2MP Hardware Manual page 17

Using your VAIO computer
Inserting the battery pack (PCG-TR series)
To insert the battery, proceed as follows:
1 Insert the tabs (1) on the battery into the
notches (2) and push the battery down into
the compartment until it clicks into place.
2 Slide the lock lever into the Lock position to
secure the battery on the computer.
✍
When the computer is directly connected to AC power and has
a battery pack inserted in the battery bay, it uses power from the
AC outlet.
Make sure the cover is closed before inserting the battery pack.
Charging the battery pack
To charge the battery pack, proceed as follows:
1 Connect the AC adapter to the computer.
2 Insert the battery pack. The computer
automatically charges the battery (the
battery indicator light flashes in a double blink pattern as the battery charges).
Depending on your model, your computer has one or two battery indicator lights.
Battery indicator light status
On
Single blink
Double blink
Off
Meaning
The computer is using battery power.
The battery is running out of power.
The battery is charging.
The computer is using AC power.
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