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Cyrix-li-ct not charging house battery (with BMV 712)

Hi there, I hope someone can help.


I have a 100ah lifepo4 battery which is combined with the starter battery using a Cyrix-li-ct. The cyrix is earthed to the starter battery on the lower terminal and connected to a BMV 712 on the upper terminal. The BMV relay is configured to close when the state of charge gets low, and I can hear the relay clicking open and close when I fiddle with the settings/invert. The alternator is producing 14.4 volts with the engine running, but I'm seeing absolutely no current pass through the relay.


Is there something else I might be missing, or do I perhaps have a broken cyrix module?

BMV Battery MonitorCyrix Battery Combiner
2 |3000

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