Victron Cyrix Li-charge 12/24V 120A Battery Combiner Relay Battery Protection Lithium

Cyrix Battery Combiner Li-ion Series: Li-Charge

How the Cyrix-Li-Charge works

The Cyrix-Li-Charge connects a battery charger with a 3-second delay:

• when the "Charge Disconnect" output of the VE.Bus BMS is high, and
• when it measures 13.7 V (or 27.4 V) or more at its battery charger terminal, and
• when it measures 2 V or more at its battery terminal (the Cyrix remains open if not connected to the battery).

  The Cyrix-Li-Charge switches off immediately if its control input reaches the "free floating" state (open circuit), indicating cell overvoltage or cell overtemperature. Generally, a cell overvoltage alarm resets shortly after charging stops.
  The Cyrix then reconnects the charger after a 3-second delay. After two attempts to reconnect the device with a 3-second interval, this delay is extended to 10 minutes. Whenever the battery voltage is below 13.5V (or 27 V or 54 V), the Cyrix switches off with a 1-hour delay.
  Note 1: If the discharge current is 0 or only a very low discharge current is present, the Cyrix will not switch off shortly after the charger is switched off and/or disconnected, because the battery voltage remains above 13.5 V.
  Note 2: If the output of the battery charger immediately rises to 13.7 V or more after the Cyrix has switched off, the Cyrix will switch on again with a 3-second delay.

  Product features

  • Protects the battery from excessive discharge by loads
  • Continuous current: 120 A
  • Suitable for 12V and 24V systems, automatic detection
  • Intelligent control by microprocessor

Documents & Downloads

• Datasheet