Victron energy Orion, Manual

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1. General Description
The Orion Smart DC-DC chargers are specially developed DC-
DC converters for controlled charging or fixed output mode. In
charger mode the three-state charge algorithm will increase
battery life by properly charging the battery. Especially in the case
of vehicles with an alternator smart control, or voltage drop
caused by long cable runs, controlled charging is indispensable.
Controlled charging will also protect the alternator in lithium
systems where direct charging can overload the alternator due to
the low impedance of the lithium battery. In fixed output mode the
output voltage will remain stable independent of the applied load
or varying input voltage (within the specified range).
To ensure that the starter battery of the vehicle is always loaded
with priority, the Orion Smart DC-DC charger will only provide
power when the engine is running. This is possible thanks to the
built-in engine shutdown detection. This also prevents the
onboard voltage of the vehicle from becoming too low. It is not
necessary to intervene in the system of the vehicle, install a
separate motor run sensor or intervene in the CAN bus system.
Apart from this detection, the Orion Smart DC-DC charger can
also be activated by a forced allowed to charge feature, e.g.
connected to the ignition switch.
The Orion Smart DC-DC charger is fully programmable with the
VictronConnect app.
Discover all setup possibilities here:
https://www.victronenergy.com/live/victronconnect:start