The functionality of the Cyrix-Li-ct is analogous to the Cyrix-ct.

The Cyrix-Li-ct will parallel connect a lead acid starter battery and a LiFePO4 battery:

• If the Charge Disconnect output of the VE.Bus BMS is high, and
• If it senses 13.4V (resp. 26.8V) or more on one of its power terminals.

The Cyrix will disengage immediately:

• When its control output becomes free floating, signalling cell over voltage or cell over temperature, and/or
• When battery voltage drops below 13.2V.

Start assist function: a short positive pulse will close the relay during 30 seconds