Severely Discharged Battery, Charging With Battery Charger VAS 5900: Procedure

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-- Turn off the ignition and all electrical consumers and remove the ignition key.

-- Connect the Battery Charger VAS 5900 to the power supply. The last selected mode is shown on the display, refer to BATTERY CHARGER VAS 5900 DEVICE DESCRIPTION .

-- Set the battery type with the INFO button.

Fig 1: Identifying Battery Type Symbols

Courtesy of AUDI OF AMERICA, LLC

The symbol -1- for "service charge of wet batteries" or the symbol -2- for "service charge of Gel/Absorbent Glass Mat (AGM) batteries" is indicated in the display.

-- Set the battery capacity (Ah) on the Battery -A- to be charged with the corresponding ↑ button or ↓ button.

-- 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 Battery Charger VAS 5900 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 Battery Charger VAS 5900 starts to charge the severely discharged Battery -A-.

Battery -A- charging, ending

-- Press the START/STOP -button.

-- Remove the charging clamps from the battery terminals.

-- Disconnect the Battery Charger VAS 5900 from the power.