question

paskee avatar image
paskee asked

Battery isolator between batteries and chargers (MPPTs, Phoenix, Orion)

Hello Community!

I am reffiting my boat with LiFePo4 batteries.

For my purpose, I need to add a battery isolator between the batteries and the chargers: 2 MPPTs, a Phoenix IP43 and a DC-DC Orion.

Would this design work since the chargers won't be connected directly to the batteries?

I also plan to add a BMV712. Can the voltage and current information be sent to those 3 chargers in any way?

Thanks for your insights and Regards

P.



MPPT SmartSolarorion dc-dcPhoenix Smart Charger ip43isolators
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2 Answers
kevgermany avatar image
kevgermany answered ·

Yes, but.

Depends on what you get.

To control the chargers you need a GX device.

With most (maybe all) supported batteries, the 712 is redundant as they'll provide the same info as the 712 to the GX device.

GX device needs either phone/Bluetooth for configuration or a screen. Screen is built in to some GX devices.


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paskee avatar image
paskee answered ·

Hello and thanks for your input.

MPPTs are Ve.direct and can be talked to from the BMV712 if I am not mistaken. Not too sure about the Phoenix since its ve.direct port is described as "maintenance" only?

As far as I know the Orion is "dumb" and wouldn't talk to any ve.direct/bus/can or smart for voltage or current information. How would the Gx help there?

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