Operation Manual

Electrical system
9
88 Caravan - 12-11 - EN
Energy reserves The living area battery has a limited power supply only. That is why electrical appli-
ances should not be operated over a long period of time if the vehicle is not con-
nected to the 230 V power supply or the engine of the towing vehicle is switched
off.
9.3.3 Charging the living area battery (Power Pack SE)
Charging using a 230 V
power supply
If the vehicle is connected to the 230 V power supply, the living area battery is
recharged by the installed charger. 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 transformer/
rectifier, switch off all electrical appliances during charging.
Charging using the vehicle
engine of the towing
vehicle
When the engine of the towing vehicle is running, the vehicle generator charges
the living area battery. An electrical connection between the towing vehicle and
the caravan is prerequisite for this. If the engine of the towing vehicle is switched
off, the electrical connection is automatically disconnected by a relay. This prevents
the battery of the towing vehicle from being run down by electrical appliances in
the living area. The starting capability of the towing vehicle is thus preserved.
Off-load voltage (measured at the poles) Charging condition
Higher than 12,80 V 100%
Approx. 12.55 V 75%
Approx. 12.32 V 50%
Approx. 12.18 V 25%
Lower than 12.00 V 0%
X The acid in the battery is poisonous and corrosive. Any contact with the skin
or the eyes is to be avoided.
X In the case of charging with an external charger there is danger of explosion.
Only charge the battery in a well ventilated area and away from naked flames
or possible sources of sparks.
X Always remove the living area battery from the vehicle when charging it
using an external charger.
Z Do not connect the battery cables to the wrong poles.
Z When the living area battery is disconnected and the caravan and the towing
vehicle are connected electrically, do not use the ignition of the towing vehicle.
Danger of short circuit!
Z Before disconnecting or connecting the terminals of the living area battery,
switch off the engine of the towing vehicle as well as the 230 V and 12 V power
supplies and all appliances. Danger of short circuit!
Z Before charging the battery, check whether the external charger is approved for
the battery type.
Z Observe the instruction manual for the charger.
Z Irreparable damage to the living area battery will result if it is overcharged.