question

gagan-ranatunga avatar image
gagan-ranatunga asked

Ac coupled with Fronius lead carbon

Can I use lead Carbon batteries with the Victron Multiplus || and fronius ac coupled combination.

I have 10 x 670W Solar panels and 48v lead carbon batteries

Froniusvictronac couplinglead-acid
2 |3000

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1 Answer
matt1309 avatar image
matt1309 answered ·

Hi @Gagan Ranatunga


I think Victron sells lead carbon batteries so I would assume so. When configuring victron devices you can configure various charge profiles for different battery chemistries. There are pre-sets however you can also make you own if non are applicable (based on the battery data sheets).


The size of the battery will be a factor to consider I know you've noted a 48v battery but what size is the battery (in aH or wH, amp Hours or wattHours).

As long as the battery is sufficiently large for the system I don't see any issues.

Also note to comply with factor of 1 rule you're looking to need a Multiplus > 6700kva, so the 8kva or higher model or multiple 5kva's. Further details here just in case you've not seen that:

AC-coupling and the Factor 1.0 rule [Victron Energy]

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