Victron Energy Cyrix-Li-ct 12/24V 230A Intelligent Li-Ion Battery Combiner

Cyrix-Li-ct 12/24V-230A Intelligent Li-Ion Battery Combiner

The Cyrix Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them has reached a pre-set voltage (indicating that the battery is being charged), and disconnects when the voltage decreases below float level (indicating that one or more batteries are being discharged). Cyrix Battery Combiners are an excellent replacement for diode isolators. The main feature is virtually no voltage loss, so the output voltage of alternators or battery chargers does not need to be increased.

The functionality of the Cyrix-Li-ct is analogous to the Cyrix-ct.

The Cyrix-Li-ct will parallel connect a lead acid starter battery and a LiFePO4 battery:

• If the charge disconnects the output of the VE.Bus BMS is high, and


• If it senses 13,4 V (resp. 26,8 V) or more on one of its power terminals.

The Cyrix will disengage immediately:

• When its control output becomes free floating, signaling cell over voltage or cell over temperature, and when battery voltage drops below 13,2 V


• Start assist function: a short negative pulse will close the relay for 30 seconds


• A built-in transient voltage suppressor will limit the voltage spike that may occur when the Cyrix suddenly disengages due to cell overvoltage or over-temperature

The Victron Energy Cyrix-Li-ct 12/24V 230A Intelligent Lithium-Ion Battery Combiner is a high-performance, microprocessor-controlled relay designed to optimize battery management in versatile power systems. This device automatically connects batteries in parallel when one reaches a pre-set charging voltage, ensuring efficient energy transfer and seamless operation. When the voltage drops below a float level, indicating discharge, it disconnects the batteries to prevent unnecessary drain and protect your battery bank. The Cyrix-Li-ct is an excellent replacement for traditional diode isolators, offering minimal voltage loss that maintains the output voltage of alternators or chargers without requiring adjustments. This feature enhances overall system efficiency and reduces heat generation, making it ideal for demanding applications where reliable battery isolation is essential. The relay's intelligent control allows it to safely connect a lead-acid starter battery with a LiFePO4 battery, facilitating hybrid battery setups commonly used in RVs, boats, and off-grid systems. It responds promptly to high control signals, such as a high VE.Bus BMS output or voltage sensing on its terminals, to initiate parallel connection, ensuring batteries are balanced and ready for use. The device disengages immediately in cases of overvoltage, over-temperature, or low voltage conditions, safeguarding your batteries from potential damage. Additionally, the start assist feature provides a short negative pulse to help with engine cranking during startup procedures. A built-in transient voltage suppressor effectively limits voltage spikes that may occur during disengagement events, further protecting your electrical system. Designed with durability and intelligent operation in mind, the Victron Cyrix-Li-ct delivers reliable battery management for complex and demanding power setups, enhancing system longevity and performance. Consult your dealer for support, repairs, or returns to ensure optimal operation of your battery management system.

Features:

• Microprocessor-controlled relay for automatic battery paralleling

• Supports 12V and 24V systems with up to 230A current capacity

• Minimal voltage loss, preserving alternator and charger output voltage

• Safely connects lead acid and LiFePO4 batteries in hybrid configurations

• Responsive to high control signals like VE.Bus BMS voltage

• Immediate disengagement during overvoltage, over-temperature, or low voltage conditions

• Start assist function provides a short pulse for engine cranking

• Built-in transient voltage suppressor to limit voltage spikes

• Durable design suitable for demanding electrical systems