We’re parked in the open and have had the converter turned off, using our single solar panel to keep lithium batteries charged while powering lights and refrigerator. We have used about 10-20% of the battery charge during the night. The batteries were fully charged well before sunset. High temperatures have been 100-105.
The system is a Victron SmartShunt, Victron SmartSolar, Victron Smart Battery Sense, and 2-200aH LiTime lithium batteries.
Things have worked great until a few days ago when we returned to the trailer to find the charge was 82% after a day of full sun. Yield had dropped from about 890 Wh to 100Wh. I turned the converter on to make sure we are fully charged for the night.
There were no clouds. That seems like a drastic drop to be dust accumulation on the panel. So where should I start in trying to find the cause of the drop in yield?
The system is a Victron SmartShunt, Victron SmartSolar, Victron Smart Battery Sense, and 2-200aH LiTime lithium batteries.
Things have worked great until a few days ago when we returned to the trailer to find the charge was 82% after a day of full sun. Yield had dropped from about 890 Wh to 100Wh. I turned the converter on to make sure we are fully charged for the night.
There were no clouds. That seems like a drastic drop to be dust accumulation on the panel. So where should I start in trying to find the cause of the drop in yield?
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