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james09 asked

12v Batteries Not Charging to Full / MPPT remaining on Bulk Charge

We have a 200AH x 12v battery setup with ~1.2KW of solar panels (2 x Trina 330W and 2 x 250W Generic) and a Victron 100/50 Charge Controller. The House is in full sun and there is very little / basically no draw from the house but for some reason the panels are not charging the batteries enough. I'm wondering if there is some issue with the panels not being setup correctly? They appear to be in parallel as the voltage is barely over 18 and the amperage is very low. Any ideas?


Screenshot 2022-11-08 194220.pngIsabella (Orange NSW) ROB - VRM Portal.pdf

https://vrm.victronenergy.com/installation/186982/share/213e4e4a

MPPT Controllerssmart solar charging behaviour
screenshot-2022-11-08-194220.png (51.3 KiB)
isabella-orange-nsw-rob-vrm-portal.pdf (272.5 KiB)
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klim8skeptic answered ·

Your PV voltage is way to low and the PV peak yield is very low.

I suspect you have issues with your PV Arrays.

More details on how the array has been wired up would be useful.

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