Volkswagen Golf Quiz
Electrical system, general information

Charging battery in support mode with battery charger -VAS 5095A-

In this manual: Electrical system, general information
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~2min read

General notes:

The support mode provides the onboard supply with power when the battery is removed or disconnected.

For further information, refer to the → operating manual VAS 5095A.

The support mode is suitable in the following situations:

Support mode of onboard supplies without installed battery

Power conservation when renewing the battery

Ancillaries test without battery

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.
  • Switch off ignition and all electrical consumers.
Caution The terminal polarity protection in operating mode “charging totally discharged batteries/support mode” is not active. Connect battery charger terminal clamps correctly to battery terminals.

It can cause sparks through a short-circuit.

Danger of explosion

Ensure charger terminal clamps are seated securely.

Do not press START / STOP button when charger unit cables are connected incorrectly. The charger unit may be damaged.
  • Remove battery.
Caution When battery is removed, ensure there is no contact between terminal clamp connected to positive clamp and body earth. Also ensure there is no contact between battery clamps.
  • Connect red terminal clamp “+” to positive terminal of vehicle.
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 of vehicle.
  • Check setting for battery type on normal/support mode switch → Chapter. It must be switched on support mode.
  • Check polarity of charger unit cables.
  • Switch on battery charger.

The battery charger starts with support mode.

End battery support mode:

  • Switch off battery charger.
  • Disconnect black terminal clamp “-” of charger unit from negative terminal of vehicle.
  • Disconnect red terminal clamp “+” of charger unit from positive terminal of vehicle.
  • Pull charger plug out of battery charger.

Test yourself

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