BATTERY, CHARGING WITH Battery Charger:VAS5908: Notes
Special tools and workshop equipment required
If software updates or flash campaigns/actions are performed on a vehicle, a charger with at least 70A charging current must be used in order to avoid problems during software updates and flash campaigns/actions.
Battery Charger "VAS 5903". Refer to Battery Charger .
Battery Charger "VAS5908". Refer to Battery Charger .
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.
Note the information in the chapter on >>severely discharged batteries<<. Refer to SEVERELY DISCHARGED BATTERIES .
Severely discharged batteries in vehicles must be replaced prior to delivery. Pre-existing damage cannot be ruled out.
The battery temperature must be at least 10 °C (50 °F).
The minimum voltage "Uesp" of the battery to be charged must be at least 5 V.
Battery, Charging
-- Turn off the ignition and all electrical equipment and remove the key.
-- Switch the Battery Charger:VAS5908 on.
-- Connect the red charging clamp "+" to the vehicle battery positive terminal.
On vehicles with a Start/Stop system and an installed Battery Monitoring Control Module -J367-, the black charge terminal "-" must be connected to the body ground.
When connecting to the battery negative terminal, the Battery Monitoring Control Module -J367- is bypassed. Malfunctions in the Start/Stop System may be the result.
-- On vehicles with a Start/Stop System, connect the black charging clamp "-" to the body ground.
-- On vehicles without a Start/Stop System, connect the black charging clamp "-" to the vehicle battery negative terminal.
-- With the ←↓ buttons, select CHARGE MODE and confirm with the ENTER button.
The Battery Charger:VAS5908 automatically adapts to the thresholds of power and voltage for the charge mode.
If necessary, preset the different thresholds for power and voltage in the charging menu. Refer to Charging Menu .
End Battery Charging Process
-- Switch the Battery Charger:VAS5908 off.
-- Disconnect the black charging clamp "-" on the battery charger from the vehicle battery negative terminal.
-- Disconnect the red charging clamp "+" on the battery charger from the vehicle battery positive terminal.
-- Remove the power supply plug.
After the battery is completely charged, the Battery Charger:VAS 5906 automatically switches to maintenance charging for long-term operation.