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bartrs avatar image
bartrs asked

Parallel Multiplus2, imbalance DC

I have setup 2 Multiplus 2 48/5000 in parallel.

All wiring DC and AC are identical is size, length and quality.

At loads of 5000w I see an imbalance between DC cables from Lynx to both Multiplus of 0,5A.

Is this acceptable?

multiplus in parallel
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2 Answers
nickdb avatar image
nickdb answered ·

Yes, they will never be perfectly symmetrical. A deviance of a few percent is perfectly ok.


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bartrs avatar image bartrs commented ·

Thanks for your reply.

I can't stand deviance but I guess I better put the amp clamp away then haha.


I must say that after running both Multi's in serie for a year, parallel is so much better. Visiblity in VRM improved massively. Should have done this since the beginning.

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Alexandra avatar image Alexandra ♦ bartrs commented ·
If that is 0m5A under full load that is pretty close to perfect.
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rslifkin answered ·

As long as the imbalance doesn't get large enough to cause one inverter to go into overload prematurely and there's no indication of a bad connection or something getting hot, I wouldn't worry about it. For the amount of power you're drawing, 0.5 amps is a pretty small difference and nothing to worry about.

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bartrs avatar image bartrs commented ·
Will ramp up the loads to the limits tomorrow to check the deviance and if one of Multi's go in prematurely overload.
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