Victron Cyrix Battery Combiner
Victron Cyrix Battery Combiner
Victron Cyrix battery combiners connect your house battery bank to your starter battery and alternator to allow alternator charging. Additionally, when a charge is applied to a house battery bank the Cyrix will close and allow current to flow to the starter battery. Select an appropriate Cyrix based on your house battery type and alternator current rating.
Alternator 160A or less - 120A Cyrix
Alternator more than 160A - 230A Cyrix
Wiring Diagrams
These diagrams demonstrate how to integrate a Cyrix into an existing system. None of the cable, lugs, or circuit protection components are included. Full kits can be found below.
These devices are compatible with both AGM and Lithium battery systems.
Lithium 120A
Lithium 230A
LED indicator meaning:
OFF – No batteries detected (check your chassis ground)
Rapid Flash – Only one battery detected
Slow Flash – Batteries detected, but not connected
Solid (or fluttering) – Batteries connected
When a Cyrix would close:
13,4 V < V < 13,7 V: 120 s
13,7 V < V < 13,9 V: 30 s
V > 13,9 V: 4 s
When a Cyrix would open:
13,3 V < V < 13,2 V: 10 s
V < 13,2 V: immediate
You may also be interested in:
Enable alternator charging to a drop-in lithium battery bank. An optional boost feature lets your house batteries start your ignition when your starter battery is dead. Not for use with alternators rated less than 160A, Smart Alternators, or rigs with regenerative braking.
Enable DC/DC charging from your alternator to a secondary Lithium, AGM or Flooded battery bank. This kit is ideal for van conversions and skoolies with older alternators or lithium batteries with input current limits under 100A.
Ideal for: Vans, skoolies, motorhomes
*Please note that cables length needs may vary by application. Please email info@amsolar.com if you would like to customize the cable lengths to better suit your needs.
Enable DC/DC charging from your alternator to a secondary Lithium, AGM, or Flooded battery bank. This kit is ideal for systems with older alternators or lithium batteries with input current limits under 100A.
Ideal for: Trailers/5th Wheels/Truck Campers
*Please note that cables length needs may vary by application. Please email info@amsolar.com if you would like to customize the cable lengths to better suit your needs.
AM Solar Part Number: RELAY-VTC120, RELAY-VTCY