Fujitsu Lifebook E342 Manual page 49

S e c t i o n T h r e e
Shorted Batteries
If your Status Indicator panel shows a shorted
battery, check the installation for that battery by
removing and re-installing it. If it still shows
that it is shorted, replace it with a new battery.
C A U T I O N
A shorted battery is damaged and must
be replaced so that it does not damage
anything else.
Recharging the Batteries
If you want to check the condition of either the
primary Lithium ion battery or an optional sec-
ond 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 a Lithium ion battery which
is installed in Multi-function Bay 1 and Battery
2 is a Lithium ion battery which is installed in
Multi-function Bay 2. (Figure 3-2 on page 29.)
40
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 in either Multi-function bay of
your notebook and connect the AC 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.
Make sure the percentage charge is shown
inside the Battery Level icon. (Figure 3-2
on page 29.)
When two Lithium ion batteries are installed,
the charge/discharge rate of the primary and
optional second 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
five (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 bat-
tery 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.