Turned on the camper refrigerator yesterday and seemed like for a nice sunny day the batteries weren't charging. Solar panel was producing 0w and the BMV 712 was flashing charge. Plugged it in overnight. Found a blow inline fuse from the shunt and replaced it. Batteries were fully charged overnight and when I unplugged it this morning there was little sunlight but the panel was showing 1-2W. Started loading the refrigerator which is drawing more power since I'm opening and closing it. It's early but there's sun hitting the solar panel and it's at 0w. Would this be because because the PV isn't exceeding the battery volts by 5v? My batteries are two 6volt AGM's. Whole system was new installed in 2020.
I did have the kill switch on all winter and powered the system up a few days ago. Looking at the history it seems to have been generating enough watts to charge the batteries. Power tested at the panel cables is 24 volts so it's generating power.
PV voltage at the MPPT input is 13.02, which seems like a problem but doesn't explain why briefly this morning there was 1-2w at the panel.
I did have the kill switch on all winter and powered the system up a few days ago. Looking at the history it seems to have been generating enough watts to charge the batteries. Power tested at the panel cables is 24 volts so it's generating power.
PV voltage at the MPPT input is 13.02, which seems like a problem but doesn't explain why briefly this morning there was 1-2w at the panel.
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