Intelligent battery combiner Cyrix-ct 12/24V 120A

No voltage loss
The Victron Cyrix-ct 12 / 24V-120A Intelligent Battery Combiner - Isolator is a microprocessor-controlled heavy-duty relay that automatically connects the batteries in parallel when a battery reaches a preset voltage (indicating that the battery is being charged) and disconnects when the voltage drops below the float level (indicating that one or both batteries are discharging). Cyrix battery combiners are an excellent replacement for diode isolators. The main advantage is that there is virtually no voltage loss, so the output voltage of alternators or battery chargers does not need to be increased.

Starter battery priority
In a typical setup, the alternator is connected directly to the starter battery. The batteries and possibly also a bow thruster and other batteries are connected via the Cyrix battery combiners through the starter battery. When a Cyrix detects that the starter battery has reached the connection voltage, it will make contact so that the other batteries can be charged in parallel.

Bidirectional voltage monitoring
The Cyrix detects the voltage of both connected batteries. It will therefore also activate if, for example, the battery is being charged by a battery charger.

Intelligent battery monitoring to prevent repeated switching
The software of the Victron Cyrix-ct 12 / 24V-120A Intelligent Battery Combiner - Isolator does more than simply connect and disconnect based on battery voltage and with a fixed time delay. The Cyrix-ct looks at the overall trend (voltage increasing or decreasing) and will only reverse a previous action if the trend has reversed within a certain period. The delay depends on the voltage deviation from the trend.

12/24 Volt auto-series
The Cyrix-ct will automatically adapt to a 12V or 24V system.