Victron Cyrix Li-charge 12/24V 120A battery coupler relay battery protection lithium

Cyrix Battery Coupler Li-ion Series: Li-Charge

How the Cyrix-Li-Charge works

The Cyrix-Li-Charge connects a battery charger with a delay time of 3 seconds:

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

  The Cyrix-Li-Charge will shut down immediately if its control input reaches the "free floating" (open circuit) state, indicates a cell overvoltage or a cell overtemperature. Generally, a cell overvoltage alarm will reset shortly after charging stops.
  The Cyrix will then reconnect the charger after a 3 second delay. After two attempts to reconnect the device at 3 second intervals, this delay time increases to 10 minutes. Whenever the battery voltage is below 13.5V (or 27V or 54V), the Cyrix will switch off with a 1 hour delay.
  Note 1: If the discharge current is 0 or there is only a very small discharge current, the Cyrix will not shut down shortly after the charger is turned off and/or disconnected because the battery voltage remains above 13.5 V.
  Note 2: If the battery charger output immediately rises to 13.7V or more after the Cyrix has shut down, the Cyrix will restart with a delay of 3 seconds.

  Product features

  • Protects the battery from being discharged too deeply by loads
  • Continuous current: 120 A
  • suitable for 12V and 24V systems, automatic detection
  • intelligent control by microprocessor