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The battery charger can be supplied for charging from an external AC power source or a DC power source from the
alternator inside the vehicle. When charging from an AC source the battery charger can charge 2 batteries indepen-
dently of each other. When charging from a DC power source, the charging voltage is independent of alternator
voltage variations due to a built-in buck-boost regulator.
The vehicle start can be supported with the built-in buck-boost function during the start cycle or the possibility to
charge the starting battery for a limited time via the house battery.
The built-in buck-boost function allows the house battery to be charged while driving.
The charging process can be controlled via:
• A remote control
• A monitoring and controlling device
• The vehicle CI bus
• An intelligent battery sensor (IBS)
The battery charger can operate in 3 different modes:
Mode
Slave 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.
12
Description
The battery charger is not connected to an IBS. The charging of the battery is controlled by the CI bus of
the vehicle, a remote control, or a monitoring and controlling device.
The charging voltage and currents are set by the device controlling the battery charger.
If the battery charger is connected to an AC source and 2 batteries, a maximum current of 25 A per bat-
tery can be set. The starting battery is automatically prioritized by the battery charger for charging when
2 batteries are connected. If only 1 battery is connected to the battery charger, the connected battery is
supplied with a maximum current of 25 A.
If the battery charger is connected to a DC source, the maximum current is 30 A.
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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