volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Charging battery in refresh charge mode with battery chargerVAS 5903 > < Description of battery chargerVAS 5903
Charging battery with battery chargerVAS 5903
Charging battery with battery charger -VAS 5903-
  WARNING
Danger of injury! Observe warning notices and safety regulations → Chapter!
  WARNING
It is not permissible to test or charge batteries whose magic eye shows light yellow. Do not slave/jump start the vehicle!
Danger of explosion when checking and charging or slave/jump starting.
These batteries must be renewed.
Special tools and workshop equipment required
   
t  Battery charger -VAS 5903-
  Note
The battery must have a temperature of at least 10 °C.
–  Switch off ignition and all electrical consumers.
–  Connect charger plug to battery charger. The last selected operating mode will appear on display → Chapter.
  N27-10610
–  Set battery to respective operating mode with INFO.
In the display the symbol -1- for „standard charge for wet batteries“ or symbol -2- for „standard charge for gel/absorbent glass mat batteries“ will appear.
–  Set battery capacity (Ah) of battery for charging using respective button „Up“ or „Down“.
–  Connect red terminal clamp „+“ to positive terminal on battery.
  Note
In vehicles with start/stop function and battery monitor control unit -J367- fitted, black terminal clamp must be connected to body earth. Connecting it to battery negative terminal will cause start/stop system to malfunction.
–  Connect black terminal clamp „-“ to negative terminal.
The charger unit recognises the voltage required for the connected battery (6 V, 12 V or 24 V) and initiates the charging sequence.
  N27-10611
At a charge condition of approx. 80 - 85 % the battery charger switches to the „final charge“ mode. The fourth bar appears in display -1-. The battery is ready for use.
  N27-10170
At a charge condition of 100 % all bars appear in display.
  Note
t  In the battery type „standard charge“ the parallel use of consumers while charging is possible. The charging period will be longer.
t  The battery charger will switch to maintenance mode after about 1-7 hours, depending on type of battery. To achieve a 100 % charge the battery should remain connected for this period.
Possible faults and fault rectification:
1 - Displayed battery voltage is not as per nominal voltage:
–  Press respective button „Up“ or „Down“ until charging sequence starts.
2 - Displayed battery voltage is not as per nominal voltage – charging sequence already started:
–  Press START / STOP twice.
–  Press respective button „Up“ or „Down“ until charging sequence starts again.
3 - Battery charger does not detect a battery, when battery voltage is less than 2 V:
Display remains unchanged.
The battery type and ampere hours (Ah) as set is displayed.
Ending battery charging sequence:
–  Press START / STOP.
–  Disconnect black terminal clamp „-“ of charger from negative terminal.
–  Disconnect red terminal clamp „+“ of charger from positive terminal on battery.
–  Pull charger plug out of battery charger.
  N27-10180

Charging battery in refresh charge mode with battery chargerVAS 5903 > < Description of battery chargerVAS 5903