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az3 asked

How many US3000 can I connect with three or four Victron Quattro 15kVA in parallel?

Hello,

I need a capacity of 13.500 Ah for an off-grid PV system. I want to use the US3000 Pylontech and the Victron Quattro 15kVA. How many US3000 Pylontech can I connect with 4 parallel connected Victron Quattro 15 kVA? And how many with 3 parallel connected Victron Quattro 15 kVA?

MultiPlus Quattro Inverter Charger
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And what is maximum number of US3000 batteries for one Victron Quattro 15kVA?

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Matthias Lange - DE answered ·

Is 13.500Ah a typo? That would be 648kWh.

The maximum system size of Pylontech can be found in the manual (5x8).

The minimum recommended can be found here (around 8 modules for one 15kVA Quattro):
https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

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az3 answered ·

Thank youI

And what is the maximum possible number of US3000 connected with one 15kVA Quattro?

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·
There is no maximum for the Quattro.

For the Quattro it doesn't matter what battery or how many of them are connected.

But you have a maximum system size from Pylontech (5x8 modules connected to a LV Hub -> 40 modules -> 2.900Ah).

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