TSB : SEVERELY DISCHARGED BATTERY, CHARGING WITH Battery Charger VAS5900

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WARNING: Risk of injury. Follow all warning messages and safety precautions. Refer to WARNINGS AND SAFETY PRECAUTIONS . WARNING: Do not check or charge a Battery -A- when the visual indicator has >>no color or is bright yellow<<. Jump starting must not be used! There is a risk of explosion during testing, charging or jump starting. These Batteries -A- must be replaced. 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! Always set the mode that corresponds to the Battery -A- during the charging process. Refer to the Battery Charger VAS5900 Operating Instructions. The Battery Charger VAS5900 does not recognize the severely discharged Battery -A-. Refer to SEVERELY DISCHARGED BATTERIES . Do not touch START / STOP button when battery cables are incorrectly connected! The Battery Charger VAS5900 can become damaged. The Battery Charger VAS5900 will not automatically recognize the Battery -A- for Batteries -A- with a voltage less than 2 V. Special tools and workshop equipment required Battery Charger VAS5900 NOTE: For information , refer to SEVERELY DISCHARGED BATTERIES . The Battery -A- temperature must be at least 10 °C (50 °F). Severely discharged batteries in vehicles must be replaced prior to delivery. Pre-existing damage cannot be ruled out. Procedure -- Turn off the ignition and all electrical consumers and remove the ignition key. -- Connect the Battery Charger VAS5900 to the power supply. The last selected mode is shown on the display. Refer to Battery Charger VAS5900 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 VAS5900 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 VAS5900 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 VAS5900 from the power.