Operation Manual

9
0 Caravan - 11-06 - DET-0030-05E
N
Electrical system
9
Energy reserves The living area battery has a limited power supply only. That is why electrical
appliances should not be operated over a long period of time if the vehicle is
not connected to the 240 V power supply or the engine of the towing vehicle
is switched off.
9.3.3 Charge the living area battery (Power Pack SE)
Charging using a 240 V
power supply
If the vehicle is connected to the 240 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 over-
load 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.
Charging using the
vehicle engine of the
towing vehicle
The living area battery is recharged by the alternator of the vehicle when the
engine of the towing vehicle is running. 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 dis-
Satisfactory measurements of the charging condition can only be made
after 4 hours of battery charging. Immediately after charging, the battery
voltage is higher, after approx. 4 hours, it sinks to the so-called off-load
voltage. The off-load voltage displays the charging condition.
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 %
The acid in the battery is poisonous and corrosive. Any contact with the
skin or the eyes is to be avoided.
In the case of charging with an external charger there is danger of explo-
sion. Only charge the battery in a well ventilated area and away from
naked flames or possible sources of sparks.
Always remove the living area battery from the vehicle when charging it
using an external charger.
Do not connect the battery cables to the wrong poles.
If the living area battery is disconnected and the caravan and towing
vehicle are connected electrically, do not apply the ignition. Danger of short
circuit!
Before disconnecting or connecting the terminals of the living area battery,
switch off the engine of the towing vehicle as well as the 240 V and 12 V
power supplies and all appliances. Danger of short circuit!
Before charging a dryfill battery, check whether the external charger is
approved for dryfill batteries.
Observe the instruction manual for the charger.
Irreparable damage to the living area battery will result if it is overcharged.