SEVERELY DISCHARGED BATTERY, CHARGING WITH Battery Charger: VAS5903
Special tools and workshop equipment required
- Battery Charger: VAS5903
Risk of injury! Pay attention to all warnings and safety precautions. Refer to WARNINGS AND SAFETY PRECAUTIONS .
Do not check or charge a Battery -A- when the visual indicator has >>no color or is bright yellow<<. Do not give a jump start.
There is a risk of explosion during testing, charging or jump starting.
These Batteries -A- must be replaced.
- 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 terminal clamps correctly according to polarity!
- Always set the mode that corresponds to the Battery -A- during the charging process. Refer to the : VAS5903 Operating Instructions.
- The : VAS5903 does not recognize the severely discharged Battery -A-. Refer to SEVERELY DISCHARGED BATTERIES .
- Do not press the START/STOP button when battery cables are connected incorrectly. The : VAS5903 can become damaged.
The : VAS5903 will not automatically recognize the Battery -A- for Batteries -A- with a voltage less than 2 V.
Pay attention to the information in the article. 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 equipment and remove the ignition key.
-- Connect the : VAS5903 to the power supply. The last selected operation mode is shown on the display. Refer to Battery Charger .
-- Adjust the battery type with the INFO button.
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-.
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 approximately five 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).
If no button is touched within five seconds, the : VAS5903 will return to the main menu (operating mode selection).
-- Confirm the selected battery voltage using the START/STOP button.
Then the inquiry about the correct polarity of the charging clamps is made.
-- Check the charging clamps reconnected to the correct terminals.
-- Confirm charging clamps are connected to correct terminals via START/STOP button.
The : VAS5903 starts to charge the severely discharged Battery -A-.
Battery -A- Charging, Ending
-- Press the START/STOP button.
-- Remove the charging clamps from the battery terminal clamps.
-- Disconnect the : VAS5903 from the power.