Cyrix-ct 12/24V-120A Intelligent Combiner

Prioritizing the starter battery

This Intelligent Battery Combiner from Victron Energy works with 12 or 24 Volts and can handle a load of up to 120 Amps, the intelligent switching feature means the combiner looks for a trend to make a decision on combining or separating

Order Code: Cyrix-ct 12/24v-120A


The Cyrix-i Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them is on charge and disconnects when the voltage decreases indicating the charge has ended.  Cyrix Battery Combiners are an excellent replacement for diode isolators. The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased.


  • Automatic voltage detect for 12 or 24 Volt systems
  • 400 Amp continuous rating, 2000 Amps for one second
  • LED status indicator light
  • Start assist feature forces a combine for 30 seconds, requires a push button switch (not included)
  • Adjustable operating profiles
  • Bidirectional voltage sensing – The Cyrix senses the voltage of both connected batteries. It will therefore also engage if either battery is on charge
  • Not suitable for wet locations
  • Dimensions 3.1″ x 4.0″ x 4.4″