Battery Charger :VAS5903 SUPPORT MODE: Procedure

CAUTION:

The polarity protection of the charger clamps is not active in the operation mode "charging severely discharged batteries/Support mode". Connect the charger clamps to the battery terminals correctly according to polarity!
It can result in sparks due to short circuit.
This constitutes an explosion risk.
Make sure the charging clamp connections are secure.
Do not touch START / STOP button when battery cables are incorrectly connected! The :VAS5903 can become damaged.

-- Remove the Battery -A-. Refer to BATTERY, REMOVING AND INSTALLING .

-- Connect the :VAS5903 to the power supply. The last selected operation mode is shown on the display. Refer to Battery Charger .

CAUTION:

Whenever the Battery -A- is removed, be careful to prevent contact between the connected charge clamp on the positive terminal and the body ground. Likewise prevent contact between the battery terminals.

-- Connect the red charge terminal (+) to the positive terminal of the Battery -A-.

NOTE:

On vehicles with a Start/Stop function and an installed Battery Monitoring Control Module -J367-, the black charge terminal (-) must be connected to the body ground. The Start/Stop system will malfunction when it is connected to the Battery -A- negative terminal.

-- Connect the black charge terminal (-) to the negative terminal of the Battery -A- /negative connector.

-- Press the START/STOP button for about 5 seconds. The menu selection "Charging severely discharged batteries/Support mode" is activated.

-- Press the corresponding ↑ -button or ↓ button to adjust the battery voltage (6 V/12 V/24 V).

NOTE:

If no button is touched within five seconds, the :VAS5903 will return to the main menu (operating mode selection).

-- Select the battery voltage by pressing the START/STOP button.

Then the inquiry about the correct polarity of the charging clamps is made.

-- Check correct polarity connection of charger clamps.

-- Confirm charging clamps are connected to correct poles via START/STOP button.

The :VAS5903 starts the Battery -A- support mode.

End the Battery Support Mode

-- Press the START/STOP -button.

-- Remove the charging clamps from the battery terminals.

-- Disconnect the :VAS5903 from the power.