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regliebenberg avatar image
regliebenberg asked

Can a Multiplus II work with a old type mppt 150/85 charge controller without a Cerbo GX?

Good day,

I have bought a multiplusII 24v/5000va inverter and a old bluesolar 150/85 mppt charge controller.

I want to know can it work without a Cerbo GX? It looks like i cant pick up the mppt in the device list so i dont think that the inverter is communicating with the mppt.

Multiplus-IIMPPT Controllerscommunication protocol
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Alexandra avatar image
Alexandra answered ·

@regliebenberg

Those older MPPTs dont play well with the new stuff. They are obsolete. They are not compatible with ESS (which you would need a GX for anyway) and dont plug directly in anywhere.

That being said they do function well in their own right when programmed correctly. And 85A of charging is 85A of charging..... So without comms you will still be able to harvest solar.

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regliebenberg avatar image regliebenberg commented ·
Thank you for the feedback.

Where can I find a manual for those old type mppts?

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Alexandra avatar image Alexandra ♦ regliebenberg commented ·

Datasheet-Blue-Solar-Charge-Controller-MPPT-150-70-150-85-EN.pdf

The manual is here.

short blog


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datasheet-blue-solar-charge-controller-mppt-150-70.pdf (54.5 KiB)