7 The Power System (Vista)
User’s Manual
7-7
7.2.4 Low-Battery Warning
After a low-battery warning, save your work immediately, then
connect your notebook to an electrical outlet. Hibernate mode will
begin automatically if the battery runs completely out of power.
You will hear the low-battery warning when the battery charge is
approximately 90 percent depleted. Your notebook will beep once,
indicating approximately 10 to 15 minutes of battery operating time
remain. If you do not connect your notebook to alternative power source
during that time, there will be a periodic beep. Your notebook will
automatically enter
Hibernate
mode if battery charge reaches a critically
low level. For more information, see
Section 7.1 Power Management
.
7.2.5 Charging the Battery
When connected to an electrical outlet, a completely discharged
4-cell battery needs to be charged in 2.5 to 12 hours, and a 6-cell
battery in 3 to 12 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 amber. 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 amber if the battery is bad and needs
replacing.
Summary of Contents for JFT00
Page 32: ......
