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..3.
Operation
7.
Switch the battery charger on. After
this the red LED must light continuously
(Fig. 2, Pos. 2) and the yellow LED flash
slowly (Fig. 2, Pos. 4). The battery is not
yet being charged.
i
As long as the battery is in the under-vol-
tage range, the yellow LED will flash. The
control for limiting the battery charging
current does not have any function when
the yellow LED flashes.
!
Before pressing the battery under-voltage
button check that the switch for selecting
the battery nominal voltage has been set
to the correct position (12 V / 24 V).
8.
Press the battery under-voltage button
(Fig. 2, Pos. 7). The yellow LED now flashes
faster and the battery is being charged.
Only after the upper limit of the battery
under-voltage range has been exceeded
(yellow LED lights continuously) does the
battery charging current come into effect
through the potentiometer.
9.
Use the potentiometer to then set the
battery charging current to the required
value.
!
When setting the battery charging current
make sure that the manufacturer's speci-
fications are adhered to.
10.
The battery is fully charged, when the
green LED lights and when the battery
charging current display indicates that only
a small charging current is being registe-
red. Switch off the battery charger once
the charging process is over.
11.
Disconnect the crocodile clips from the bat-
tery (remove the blue negative one first).
1 689 979 848 (2005-06-14)
3.5
Start assist
!
If the vehicle manufacturer's instructions do
not contain any reference to a start-assist
measure using a rapid-start charger, you
should ask for information on this at your
vehicle manufacturer's.
In this operating mode you can use the rapid-
start charger for start-assistance.
1.
Switch the battery charger off (Fig. 2,
Pos. 9).
2.
Connect the crocodile clip-on terminals
to the proper battery terminals (Fig. 1,
Pos. 1). The red-colored clip goes to the
positive terminal (+) and the blue one to
the negative terminal (-).
!
Make sure that the crocodile clips have
a reliable and secure connection. When
performing a start-assist measure switch
off all consumers in the vehicle.
3.
Set the two-way switch for „cold and hot
batteries" to the correct position (Fig. 2,
Pos. 6). Note that only the battery tempe-
rature is to be evaluated.
4.
Depending upon the output required set the
start-assist current potentiometer (Fig. 2,
Pos. 8) to between 50 % and 100 %.
5.
Set the two-way switch (Fig. 2, Pos. 5) to
the specified battery nominal voltage for
the battery to be charged.
6.
Switch the battery charger on. After this
the red LED must light continuously (Fig. 2,
Pos. 2).
BSL 2470
Robert Bosch GmbH
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