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cwallace56 avatar image
cwallace56 asked

Victron BMV-712 does not update charge stays and voltage accurately

It just seems like the accuracy of the charge voltage and %status are not reliable. Some days it shows correctly in trends for battery voltage and %. Some days it shows a steady decrease, even with the solar feeding in current. A short drive will sometimes cause voltage a % to jump up. The voltage on my Zamp controller usually agrees with the 712. I don’t get it?!?

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kevgermany avatar image kevgermany ♦♦ commented ·
Sorry, there's not enough to go on here. You'll need to give us battery details, battery settings in the 712 and also an explanation of how it's wired. Also a print of the daily values. How much is solar producing? How much does the car charge? What loads do you have? Have you checked the wiring for breaks/pour connections.
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marc-heide answered ·

Change in % caused by temperature maybe?

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