Sony Vaio PCG-GRX315MP Instruction & Operation Manual page 22

Using your notebook
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 (1) (the battery indicator (2) light flashes in a double
blink pattern as the battery charges). When the battery is 85% full, the battery indicator light turns off.
This process takes a few hours when the system is off/on. To charge the battery completely, continue
charging for an additional hour.
There are two battery indicator lights on the computer:
1
2
indicates the status of the battery pack in the battery bay on the right side of the computer.
indicates the status of the battery pack in the multi-purpose bay on the left side of the computer.
Battery indicator light status Meaning
On
Single blink
Double blink
Off
n N
The computer is using battery power.
The battery is running out of power.
The battery is charging.
The computer is using AC power.
21