Batteries - Fujitsu Lifebook E342 Manual

S e c t i o n T h r e e
Each setting source puts an upper limit on the
volume which can be set by the other sources.
For example if the hardware volume control is
turned all the way down, your software volume
control settings have no effect. By the same
token, if the ESS AudioRack has the sound
turned off, adjusting the hardware or other
application software volume settings will not
produce sound. One easy operating method is
to use the hardware and ESS AudioRack volume
controls to set an upper limit on sound level
and then make fine adjustments with other
application software.
C A U T I O N
The ESS AudioRack volume setting
sets the maximum volume level of the
hardware volume control knob.
P O I N T
Windows NT 4.0 does not support the
ESS AudioRack application.
38
C A U T I O N
If you use a speakerphone function,
be sure that the microphone setting in
the ESS AudioRack (recorder portion)
is disabled.

BATTERIES

The Lithium ion batteries are rechargeable with
an operating time of up to three (3) hours
depending on active power management fea-
tures and user activity levels. Your notebook can
be operated on the primary Lithium ion battery
alone or in a dual battery configuration with an
optional second Lithium ion battery. A built-in
bridge battery allows a charged Lithium ion
battery to be exchanged for a discharged one
by "warm-swapping". To warm-swap, have a
charged battery ready, put your notebook in
Suspend mode, remove the low battery and
quickly insert a charged battery. (See page 39 for
more information about the bridge battery.)
The Lithium ion battery operating time may
become shorter than the reference value if it is
used under the following conditions:
When used at temperatures that exceed a low
of 5°C or a high of 35°C. High temperatures
not only reduce charging efficiency, but
can also cause battery deterioration. (The
Charging icon on the Status Indicator panel
will flash when you try to charge a battery that
is outside its operating temperature range.)
The battery charging capacity is reduced as the
battery ages. If your battery is running low
quickly, you should replace it with a new one.
When using a high current device such as a
modem, a LAN card, a CD-ROM drive, or
the hard drive frequently.
Using the AC adapter will conserve your battery
when using a high current device such as a
modem, a LAN card, a CD-ROM drive, or the
hard drive frequently. The Bridge battery can
only be recharged by using the AC adapter.