Fujitsu FI-6750S User Manual page 41

Recharging the Batteries
If you want to check the condition of either the
internal Lithium ion battery or the external
Lithium ion battery, check the Battery Level
indicators located on the Status Indicator panel.
These indicators change as the battery levels
change. Battery 1 is the internal Lithium ion
battery and Battery 2 is the external Lithium
ion battery. (Figure 2-3 on page 23.) You
can also check the PowerPanel toolbar.
(See pages 43-47.)
The Lithium ion batteries are recharged inter-
nally using the AC adapter or auto/airline
adapter. To recharge the batteries:
Make sure the battery to be charged is
installed,then connect the AC adapter or
auto/airline adapter.
Make sure that the Battery Charging indica-
tor to the left of the Battery Level indicator
of the battery to be charged is visible on the
Status Indicator panel.
The percentage charge is shown inside the
Battery Level icon. (Figure 2-4 on page 25.)
U s i n g Y o u r L i f e B o o k 6 0 0 S e r i e s
When two Lithium ion batteries are installed,
the charge/discharge rate of the internal and
external Lithium ion batteries are the same,as
they are connected in parallel and are both
charging and/or discharging at the same time.
Since the rates are the same, one may finish
charging or discharging before the other if they
were not at the same charge level when they
were installed and/or the AC or auto/airline
adapter was connected.
There is no memory effect on the Lithium ion
batteries, which means that you do not need to
discharge them completely before recharging. A
single fully discharged Lithium ion battery will
charge in approximately three (3) hours when
your notebook is Off or in Suspend mode. The
charging time from fully discharged for two
Lithium ion batteries together, is approximately
5 hours when your notebook is Off or in
Suspend mode.Of course partially charged bat-
teries will not take as long to charge. The charge
times will be significantly longer if your note-
book is in use while the batteries are charging
(from approximately nine (9) hours for one
L i f e B o o k 6 0 0 S e r i e s f r o m F u j i t s u
battery to approximately 15 hours for two
batteries with normal operating levels).
C A U T I O N
Using heavy current devices such as LAN
cards or frequent CD-ROM accesses may
prevent charging completely.
Low Battery State
When the battery is running low, your note-
book beeps about every 15 seconds and the
Battery Level indicator(s) flash. If you do not
respond to the low battery alarm,the batteries
will continue to discharge until they are t oo low
to operate. When this happens there will be a
multiple beep alarm,the Battery Level indicator
will show dead battery, and your notebook will
go into Suspend mode to try and protect your
data as long as possible. Your power manage-
ment settings do not affect whether the dead
battery alarm level will send your notebook into
Suspend mode,it will not go to Save-to-Disk
mode. (Figure 2-3 on page 23.)
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