Operation Manual

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18 Motorcaravan - 09-08 - DET-0033-07E
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Electrical system
9
Measures: Switch off all electrical appliances that are not absolutely essential at the
corresponding switch.
If necessary, use the 12 V main switch to switch the 12 V power supply
back on for a short while. This is only possible, however, when the battery
voltage is above 11 V. If the voltage is below this level, the 12 V power
supply cannot be switched on again until the living area battery has been
recharged.
9.5.4 Charging the battery
When the vehicle engine is running, the vehicle alternator recharges the living
area battery and the starter battery. When the vehicle engine is switched off,
the batteries are automatically disconnected from one another by a relay in the
transformer/rectifier. This prevents the starter battery from being run down by
electrical appliances in the living area. The starting capability of the vehicle is
thus preserved. The charging condition of the living area battery or the starter
battery can be read on the panel.
If the vehicle is connected to the 240 V power supply, the living area battery
and the starter battery are automatically charged by the charger module on the
transformer/rectifier. The starter battery is only charged with a float charge.
The charging current is adapted to suit the charging condition of the battery.
This ensures that it is not possible to overload the battery.
To make use of the maximum output from the charger module on the trans-
former/rectifier, switch off all electrical appliances during charging.
9.6 Transformer/rectifier (EBL 101)
Do not cover the ventilation slots. Danger of overheating!
Depending on the model, not all slots for the fuses are occupied.
Further information can be obtained in the manufacturer's instruction
manual.