Operation Manual

Electrical system
9
86 Caravan - 12-11 - EN
9.3 12 V power supply
When the caravan is not connected to the 230 V power supply, 12 V power supply
is performed either by the starter battery of the connected towing vehicle or by the
living area battery (Power Pack SE).
When the caravan is electrically connected to the towing vehicle and the vehicle
engine is running, the living area battery is charged by the vehicle generator.
The 12 V power supply can be cut off with the 12 V main switch on the panel (spe-
cial equipment).
9.3.1 Living area battery, general (Power Pack SE)
Z If you use the battery of the towing vehicle to provide power for the caravan,
bear in mind that the battery capacity is restricted. If you place too great a
burden on the battery, this may lead to starting difficulties.
Z Always disconnect the electrical connection between the towing vehicle and
the caravan before the caravan is connected to the local power supply. In order
to carry this out, disconnect the plug from towing vehicle socket.
Z Always disconnect the electrical connection between the towing vehicle and
the caravan before the living area battery is charged via an external charger.
Z To make the living area's electrical installation completely deenergised, pull out
the plug from the battery input "Batterie-Eingang" at the transformer/rectifier.
Z Use the charger module provided on the transformer/rectifier to charge the
living area battery. When charging externally, use a regulated charger that is
suitable for the battery type (a lead acid or dryfill battery) and the capacity of the
living area battery.
Z Prior to commencing a journey ensure the living area battery is fully charged.
For this reason charge the battery for at least 20 hours before commencing the
journey.
Z During the trip, use every opportunity to charge the living area battery.
Z Charge the living area battery for at least 20 hours after the journey.
Z Charge the battery for at least 20 hours before laying up.
Z For long periods of inactivity (4 weeks or more), either disconnect the living area
battery or recharge it regularly.
Z When the living area battery is changed, only use batteries of the same type.
Z When changing the living area battery, use only batteries which meet the min-
imum capacity of the charger. Observe the separate instruction manual for the
charger. Lower-capacity batteries will generate a great deal of heat when they
are charged. Danger of explosion!
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 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 Take note of the battery manufacturer's users and maintenance instructions.
Z Connect only devices with a maximum of 10 A to the sockets of the 12 V power
supply.