(MultiPlus series)Using DC instead of AC for Charger AC input

DIY
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1

Hello there. I am considering buying victron hardware. But I need to receive a solid answer from a Victron engineer whether i can use DC instead of AC for Charger AC input and if that’s possible, what’s the DC voltage range. Talking about MultiPlus/MultiPlus2 series inverters/chargers here. The point is that I am looking for a proper off-grid setup to make use of a 330VDC power source. So far I have figured out the easiest (for my wallet) path is to buy cheapo high power inverter and feed its AC output to the multiplus 2. But If i can feed 330vdc straight to multiplus, that would be even more simple solution.

Best regards,
Dan

2

I’m pretty sure that will not work.
The input goes through a transformer first to convert it to a lower AC voltage, that AC voltage is then converted to DC for charging.
Transformers only works with AC.

3

Is this not like my setup but without grid and PV inverter?

MySetup
MySetup1046×580 48.6 KB

4

No. He wants to supply at the grid AC inputs a DC source which can’t be done.

5

Ok. Thank you guys for clarification.

6

Some of the old Victron Skylla chargers could use 90-400volts DC input, but i think they were only 24volts Dc output? need to check?

Guessing you are using a 48volt DC battery system?