question

maha avatar image
maha asked

max. charge current doesn't work

Hi!

I have a problem with max. charge current. It seems that it doesn't work right.

See below:


Max charge is 15A but the battery will be load with 39A?!

What's going wrong?

battery charging
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klim8skeptic avatar image klim8skeptic ♦ commented ·

15a per phase/inverter??

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petajoule avatar image petajoule commented ·

as @klim8skeptic already pointed out: If you have a 3p system (which according to the picture you seem to have), then 15A is per charger/inverter. Therefore a total 45A.

In addition to that there is the current from the PV charger.

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2 Answers
Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @MaHa

When 'feed in DC solar power' is 'on', DC charge current is not limited, and when the battery is not fully charged yet (so no feed-in from DC active yet) this can lead to charging with a higher current than set in DVCC.

So the solution is to either disable DC feed-in, or better: use a battery that is capable of the charge current the MPPT can reach.

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maha avatar image
maha answered ·

I think it's a software error!

DVCC will not(!) control the charge current via DC-input in my system (Fronius at AC-in).

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