Home Depot is running a special today on 180-Watt panels.
https://www.homedepot.com/p/Grape-So...W-US/301024442
I’m not in any way recommending these since I don’t know much about them, but wanted to point out that the ad for panels states “Produces on average 45 Amp-hours/540-Watt-hours per day”, which is panel power rating times 3 hours. This rough estimate just caught my attention after having read this thread.
In the past I had seen maximum charging up to 5 times panel power rating for the high end, and obviously “zero” (or close enough) at low end for a really bad day. Using 3 times as an average seems reasonable.
So, if looking at 100-Watt panel, one could expect 300 Watt-hours per day on average, which is about 25 Amp-hours at 12 Volts. An average number only gets one in the right ballpark, since there must be a lot of difference between Arizona and Washington.
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