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Charging a secondary battery from inverter

Is it acceptable to charge a secondary FLA battery from an inverter running off a primary LiFePO4 bank as per the attached drawing. Thanks - Tim LiFePO4 Start Battery Charging.pdf

battery chargingcharging
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wkirby answered ·

You could do it like that.

Another way would be to use a DC-DC charger like one of these:
https://www.victronenergy.com/upload/documents/Datasheet-Orion-Tr-Smart-DC-DC-chargers-non-isolated-360-400W-EN.pdf

There are 12V to 12V, 12V to 24V, 24V to 12V or 24V to 24V versions.

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tim22 answered ·

I looked at the Orion Charger but it seems to be designed to charge the house battery from the alternator supplied start battery. I would need to charge in the opposite direction ( from house to start). Is there any documentation that covers this scenario?

Thanks
Tim

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tim22 answered ·

Thanks wkirby

The advantage of going through the Multiplus is that when I am connected to shore power the secondary battery will be charged using shore power but when disconnected I can charge through the inverter if needed.

Tim

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