Sony PCG-GRV550 VAIO User Manual page 13

Charging a battery
You will need to charge the battery if battery power drops below 10 percent or you have not used the battery for a
considerable amount of time. The lithium-ion battery supplied with your computer may be recharged at any time, whether
you wait until the battery is completely or partially discharged. Charging a partially discharged battery does not affect
battery life. If you charge the battery and find that battery power is still low, the battery may be reaching the end of its life,
and you may need to replace it.
The battery supplied with your computer is not charged at the time of purchase.
To charge a battery
You can charge the battery when the computer is on or off. However, the battery will charge faster when the computer is
off. Charging the battery takes several hours. See your VAIO
approximate time needed to charge your battery.
Charge the battery at temperatures between 50°F and 80°F (10°C to 30°C). Lower temperatures require more time
to charge.
1.
Insert the battery into the battery bay. If you want to charge more than one battery, insert the second battery
into the computer. See
2.
Connect the AC adapter to the computer. The computer automatically charges the battery as long as the
computer is using AC power.
The battery indicator blinks while the battery charges. The battery indicator stops blinking when the battery is 100 percent
full.
When using two batteries, the battery you insert first charges first. The second battery you insert begins charging
when the first battery is 85 percent full.
Battery Indicator
Battery indicator status Description
On
Single blink
Double blink
Off
To insert a second battery
The computer is using battery power.
The battery is running out of power.
The battery is charging.
The computer is using AC power.
Computer Specifications on the
®
for more information.
Welcome page for the
Page 13