User's Manual

5.2.5 Charging the Battery
When connected to an electrical outlet, a completely
discharged battery will charge in 3 to 5 hours (depending on
whether your notebook is on or off and what programs, if
any, are running). You can leave the battery in your notebook
as long as you like. The battery’s internal circuitry prevents
the battery from overcharging.
Before using the battery for the first time it must be charged.
Connect the computer to an electrical outlet and allow the battery
to fully charge, indicated by the battery indicator light on the
front panel of the notebook.
Once a battery pack is fully charged for the first time, use
your notebook on battery power until the battery discharges
completely. This will extend battery life, and helps ensure
accurate monitoring of battery capacity.
If necessary, the battery will be charged whenever your notebook
is connected to an electrical outlet.
The battery will not be charged if it or your notebook is too hot,
either from use or being in a hot environment. If this occurs the
battery indicator
will light red. Disconnect your notebook from
any electrical outlet, and allow it and the battery to cool to room
temperature. You can then reconnect your notebook to the
electrical outlet and charge the battery. The battery indicator
will also light red if the battery is bad and needs replacing.