Victron energy Orion, Manual

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2. Features
Smart alternator compatibility
Vehicle manufacturers are now introducing smart ECU (Engine
Control Unit) controlled alternators to increase fuel efficiency and
lower emissions. Smart alternators deliver a variable output and
are shut off when they’re not needed. The converter has a unique
engine running detection in order to be able to detect a running
vehicle engine. This prevents the converter from discharging the
starter battery if the alternator does not supply power. See
chapter “5. Smart alternator compatibility” for more details.
Configurable with Victron Connect.
Separation of the starter battery and the service battery
The Orion DC-DC Smart Charger non-Isolated separates the
starter battery from the service battery when the engine is not
running.
Extensive electronic protection
Over-temperature protection and power derating when
temperature is high.
Overload protected.
Short circuit protected.
Connector over-temperature protection.
Adaptive three step charging
The Orion DC-DC Smart Charger Non-Isolated is configured for a
three-step charging process: Bulk – Absorption – Float.
Bulk
During this stage the controller delivers as much charge current
as possible to rapidly recharge the batteries.
Absorption
When the battery voltage reaches the absorption voltage setting,
the controller switches to constant voltage mode. For lead acid
batteries it is important that during shallow discharges the
absorption time is kept short in order to prevent overcharging of
the battery. After a deep discharge the absorption time is
automatically increased to make sure that the battery is