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slo0079 avatar image
slo0079 asked

How do I calculate available power from a 230v generator to a 12v system?

Per query above, I'm trying to size a generator. Options are 2200w or 3200w 230v units. What current can I get at 12-13v?

Generator
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2 Answers
snoobler avatar image
snoobler answered ·

(2200W / 12-13V) *.85 (inefficiency)


https://www.victronenergy.com/live/multiplus_faq

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kevgermany avatar image kevgermany ♦♦ commented ·

For those when it's not clear.

I misread 12-13V. Which is -1V.

It's a range so do two calcs, one with 12V, one with 13V.


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Michelle Konzack avatar image
Michelle Konzack answered ·

Do not overload a Generator by running it on its rated power. The Generator will wear off in lightspeed.


If you have a Generator with 2200W continious power, the load should not exceed 2/3, hence 1450W.


This mean, your charger should not have more then 100A charging output @12V.

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