Bosch PROFESSIONAL AL 1450 DV Operating Instructions Manual page 5

1 609 929 C48 - U1.book Seite 2 Montag, 18. April 2005 11:01 11
Meaning of the Indication Elements
The LED charge indicator 4 signals the control of
the charging process:
Rapid charging process
The rapid-charging procedure is in-
dicated by slow flashing of the
charge control LED 4 (approx. 1x
per second).
The battery is fully charged as soon as the light of
the LED charge indicator 4 changes from blink-
ing to continuous.
The battery can now be removed and is ready for
use.
Rapid charging is only possible when the bat-
tery temperature is between 0 °C and 45 °C.
Trickle charging process
The LED charge indicator 4 sig-
nals the trickle charging process by
a continuous light .
As soon as the battery is fully charged, the
charger will immediately switch to the trickle
charge mode. This will equalize the natural dis-
charge process of the battery.
Charging procedure possible only with
reduced charging current
The charging procedure with re-
duced charging current is indicated
through short double-lighting im-
pulses followed by brief interrup-
tions of the charge control LED 4 .
The battery cannot be charged with the maximum
available rapid-charging current because the bat-
tery temperature is not within the allowable tem-
perature range (0 °C to 45 °C). Therefore, the
rapid-charging current is automatically reduced.
The charging time increases when charg-
ing with reduced charging current.
The charging process cannot take place
If a different malfunction of the
charging procedure is present, this
will be indicated through rapid
flashing (approx. 10x per second)
of the charge control LED 4 .
The charging process cannot begin and the bat-
tery cannot be charged.
Possible causes of trouble are:
– The battery contacts are dirty.
Corrective measure: Clean the contacts
(f. ex. by plugging and unplugging the battery
several times) or, if need be, replace the battery.
5 • 1 609 929 C48 • TMS • 12.04.05
– The battery is defective because there is no
electric current within it (individual cells).
Corrective measure: Replace the battery.
The LED charge indicator 4 does not
light up
The LED indicator 4 does not light up after plug-
ging the mains plug into the socket and inserting
the battery into the charging compartment 5 .
Possible causes of trouble are:
– The charger plug has not been (properly) in-
serted.
Corrective measure: Insert the plug (fully)
into the socket.
– A defective socket, cable or charger.
Corrective measure: Check the mains volt-
age and, if necessary, take the charger to an
authorized customer service center for Bosch
power tools so it can be checked.
Practical Advice
After continuous or several repetitive charging
cycles, the charger could warm up. However,
this temperature increase is no cause for con-
cern, as it does not indicate a technical defect
in the unit.
A battery that is new or has not been used for
a longer period does not develop its full capac-
ity until after approximately 5 charging /dis-
charging cycles.
A significantly reduced working period after
charging indicates a used up battery that must
be replaced.
Maintenance and Cleaning
The unit is maintenance free. Always keep the
unit and the ventilation slots clean.
Should the unit fail in spite of the care taken dur-
ing its manufacturing and testing, take it only to a
customer service center for Bosch power tools to
be repaired.
In all correspondence and spare parts orders,
please always include the 10-digit article number
given on the nameplate of the battery charger.
Disposal
Power tools, accessories and packaging should
be sorted for environmental-friendly recycling.
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