Sony PCG-FXA53 - Manual (Page 23)

Connecting a Power Source
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3 Push the battery bay cover up until it clicks.
Notes on the battery
❑ When the battery power is running low, both the battery and power
indicators blink.
❑ When the notebook is directly connected to AC power and has a battery pack
in the battery bay, it uses power from the AC outlet.
❑ See “Using a Second Battery Pack” in your online User Guide for
information on installing and charging a battery pack in the multipurpose
bay.
❑ Keep the battery pack in the notebook while it is directly connected to AC
power. The battery pack continues to charge while you are using the
notebook.
❑ If the battery level falls below 10 percent, you should either attach the AC
adapter to recharge the battery, or shut down your notebook and insert a fully
charged battery.
❑ The battery pack supplied with your notebook is a lithium-ion battery and
can be recharged at any time. Charging a partially discharged battery does
not affect battery life.
❑ The battery indicator is on while you use the battery pack as a power source.
When battery life is nearly depleted, the battery indicator starts flashing.
Removing the battery pack
You will lose data if you remove the battery pack while the notebook is on
and not connected to the AC adapter, or if you remove the battery while the
notebook is in a power saving mode.