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 terminal 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 a free-floating (open-circuit) state, indicates a cell overvoltage, or indicates a cell overtemperature. A cell overvoltage alarm is generally reset shortly after charging is stopped.
  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 increases to 10 minutes. Whenever the battery voltage falls below 13.5V (or 27V or 54V), the Cyrix will shut down after a 1-hour delay.
  Note 1: If the discharge current is 0 or there is only a very low discharge current, 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 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 excessive discharge due to loads
  • Continuous current: 120 A
  • suitable for 12V and 24V systems, automatic detection
  • intelligent control by microprocessor