Sony PCG-K20P Manual
Using the Battery
The supplied battery is not charged when you unpack it. To charge it for future use, install the battery, and then connect
the AC adapter to power your computer. The battery charges from AC power regardless if the computer is on or off. For
information on how to extend the life of the battery, see
the AC adapter to power your computer. The battery charges from AC power regardless if the computer is on or off. For
information on how to extend the life of the battery, see
Page 42