Based on what we get from our solar panels at home, you'll probably only get 6hrs of full charging during the winter months. So if the panels will produce 7-10amps (might be at the lower end of the scale during winter), you'll get a maximum return of 42-70amp.hrs returned to your battery.
Unfortunately this is where a generator coupled with a 15-25amp charger tends to make more sense, albeit noisier and smellier...
At Leyburn, I'm OK for one night, but use the generator during day if I'm there for two nights. The small panel on my shed recharges the battery array over a week or so.
DT
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