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Dometic SMP439-10 Instructions De Montage page 10

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Mode
Master mode
Normal mode
If the communication between the remote control or a monitoring and controlling device and the battery chargers is
interrupted, the battery charger switches to float charge.
After 8 h float charging, the battery charger automatically switches to the master or normal mode. If the battery
charger communication is activated again, the battery charger switches to slave mode after 10 s. The battery charger
uses the last configuration saved for the battery.
If the batteries are fully charged, the 25 A supplied by the battery charger can be used to supply power to the vehi-
cle interior.
The battery charger is equipped with an AC interlock socket. When the battery charger is connected to an AC
source, an internal relay of the battery charger short-circuits the AC interlock socket, which connects the battery
charger to the vehicle's starting circuit to prevent the vehicle from starting.
The battery charger is equipped with a jump starter button that allows charging of the starting battery using the
house battery.
The battery charger has the following protective systems:
• Overvoltage protection
• Overheating protection
• Overload protection
• Short circuit protection
• Output polarity protection
10
Description
The charging of the house battery depends on the IBS signals. The charging of the other battery is con-
trolled by the charger itself or with the vehicle's CI bus, remote control, or monitoring and controlling
device.
If the battery charger is connected to an AC source, the starting battery is supplied with a maximum of
10 A charging current and the house battery is supplied with a maximum of 25 A. If both batteries are
charged, the total maximum charge current is 25 A. The starting battery is automatically prioritized by
the battery charger for charging when 2 batteries are connected.
If the battery charger is controlled by the vehicles's CI bus and is connected to an AC source, the start-
ing battery and the house battery, the maximum charge current supplied is 25 A.
When one battery charges the other battery, the maximum charge current is 30 A.
The battery charger is neither connected to an IBS, the CI bus of the vehicle, a remote control, or a
monitoring and controlling device.
If the battery charger is connected to an AC source, the starting battery is supplied with a maximum of
10 A charging current and the house battery is supplied with a maximum of 25 A. If both batteries are
charged, the total maximum charge current is 25 A. The starting battery is automatically prioritized by
the battery charger for charging when 2 batteries are connected.
When one battery charges the other battery, the maximum charge current is 30 A.

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