Victron CYRIX LI CHARGE 12 24 120A Intelligent Charge Relay Cyrix LI Charge Brand_Event items remain clean items remain clean Four Books filled with kid friendly learning The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased The Cyrix Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them has reached a pre set voltage (indicating that the battery is being charged) and disconnects when the voltage decreases below float level (indicating that one or more batteries are being discharged)