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Peter Groves avatar image
Peter Groves asked

Battery 712 monitor showing slightly high voltage?

Have just installed a 712 battery monitor to 12v battery bank. Voltage seems to be showing a little high?

batterybattery system voltage
screenshot-20200430-181644-comvictronenergyvictron.jpg (353.4 KiB)
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3 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

What type of batteries do you have?

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Peter Groves avatar image Peter Groves commented ·

Hi Matthias

I have Victron 140ah AGM batteries

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ Peter Groves commented ·

Is some kind of charger(from PV or grid) running or was running?

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Peter Groves avatar image
Peter Groves answered ·

Thank you, yes grid was connected. As soon as I disconnected voltage dropped to 12v.

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Peter Groves avatar image
Peter Groves answered ·

Hi yes you are correct I was still connected to the grid as soon as I disconnected from grid the voltage dropped to 12v

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·

In that case I think the shunt isn't wired correctly.
When a charger is running you should have see a positive current/power running into the battery. But in you screenshot above there are 0A and 0W.

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