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jctibor asked

Victron as battery charger/discharger

Hello guys,


we use Victron multiplus in out company to charge/discharge batteries in final factory testing.

Out setup is Battery + Venus + Multiplus connected to the grid. My problem is that BATTERY POWER is not equal to the GRID POWER (which only is possible to control by grid setpoint). So there are some "fictional" load or total inverter inefficiency. For example, i set grid setpoint 200W and battery power is 70W ... where is the rest 130W? How is it possible that there are any AC loads if i have connected only AC in 1 ?grid-sp-err.png


I would like to get rid off any AC load because i havent got any AC load.


Thank you,

BR

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Alexandra avatar image Alexandra ♦ commented ·
@jctibor

How are you measuring the battery current? Is it linked to the system?

There is no shunt on the DC bus of the inverter so it guestimates there.

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