Troubleshooting - Causes And Corrective Measures; Working Advice - Bosch Professional AL 1820 CV Operating Instructions Manual

12 | English
Charging Procedure
The charging procedure starts as soon as the
mains plug of the battery charger is plugged into
the socket outlet and the battery 1 is inserted
into the charging compartment 3 .
Due to the intelligent charging method, the
charging condition of the battery is
automatically detected and the battery is
charged with the optimum charging current,
depending on battery temperature and voltage.
This gives longer life to the battery and always
leaves it fully charged when kept in the charger
for storage.
Note: The charging procedure is only possible
when the battery temperature is within the
allowable charging temperature range, see
Section "Technical Data".
Meaning of the Indication Elements
Flashing Battery Charge Indicator 2
The charging procedure is
signalled by a flashing battery
charge indicator 2 .
Continuous Lighting of the Battery Charge
Indicator 2
Continuous lighting of the
battery charge indicator 2
indicates that the battery is
fully charged or that the
temperature of the battery is not within the
allowable charging temperature range, and
cannot be charged for this reason. The battery is
charged as soon as the allowable charging
temperature range is reached.
When the battery is not inserted, continuous
lighting of the battery charge indicator 2
indicates that the mains plug is inserted in the
socket and that the battery charger is ready for
operation.
F 000 622 272 | 12.2008
3_AL1820_Page5to12.indd 12
Operating instructions
Troubleshooting Causes and
–
Corrective Measures
Cause
Continuous lighting of the battery charge
indicator 2
No charging procedure possible
Battery not (properly)
inserted
Battery contacts
contaminated
Battery defective
Battery charge indicator 2 does not light up
Mains plug of battery
charger not plugged in
(properly)
Socket outlet, mains
cable or battery
charger defective

Working Advice

With continuous or several repetitive charging
cycles without interruption, the charger can
warm up. This is not meaningful and does not
indicate a technical defect of the battery
charger.
A significantly reduced working period after
charging indicates that the battery is used and
must be replaced.
Corrective Measure
Properly insert
battery into battery
charger
Clean the battery
contacts (e.g. by
inserting and
removing the battery
several times) or
replace the battery
Replace the battery
Insert mains plug
(fully) into the socket
outlet
Check the mains
voltage; have the
battery charger
checked by an
authorised after-sales
service agent for
Bosch power tools
Robert Bosch Ltda.
09.01.09 15:54:16