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rolandchart avatar image
rolandchart asked

AGM super Cycles Cerbo Percentage not reflecting the voltage

I’ve a bank of 4 170amp super cycle AGM batteries. They are great batteries and I’ve been careful not to discharge them too deeply over the couple of years I’ve had them


One thing that’s never seemed to work properly is the percentage on the cerbo in terms of it matching the voltage. It’s way out as the screenshot shows.


I’ve searched the forums and can’t seem to find a solution that works. Any suggestions welcome

img-2858.pngimg-2857.jpeg

cerbo gxSmartShuntSOCAGM Battery
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img-2858.png (171.3 KiB)
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Alexandra avatar image
Alexandra answered ·

@rolandchart

When are talking years and AGM you will need to be compensating for capacity loss.

You are right 12v is not 74% especially with a 69W load. What are the AH drawn?

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rolandchart avatar image rolandchart commented ·

272Ah discharged. I’m sure it’s never reflected properly.

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