Wednesday, Jan 11, 2017 at 10:12
Yes Baz, so many variables.
The panels the OP has might not have output as stated, many ebay / cheaper ones don't.
My 100w folding blanket type puts out 6 amps in full sun, my 150w 9 amps, pretty much a tiny bit over specs they print.
I wouldn't depend on any sort of calculations, all it takes is some cloud and your solar input is halved, my 100w blanket output in heavy dark grey
cloud is 2.5 amps, enough to keep up with my Technii fridge no worries, but then would drain overnight a fair bit.
If base camping, you must have over supply of daytime amps in from solar, or greater capacity to hold charge for a number of days use.
Then, the alternator can recharge it when on the move again, hence the link to a suited package as in my above link.
Personally I feel most people would not base camp totally for 5 days and not drive ANYWHERE for that time, even short explores of local tracks etc each day, or duck into town for some supplies, would be enough to greatly reduce the need for either more solar input, or larger battery capacity.
How much all these things relate to the OPs needs is like that proverbial piece of string.
Personally, I wouldn't like to go less than say a 100 amp/hr AGM battery with 160w solar, even if you could cope with half that capacity over say 5 sunny days.
Me, I don't think I've ever camped that long !!
More daily touring moving along to a new place daily.
I never need solar in this situ, but have hooked it up if staying somewhere for a day or three, about my max attention span without going somewhere :)
Follow Up By: Baz - The Landy - Wednesday, Jan 11, 2017 at 12:54
Wednesday, Jan 11, 2017 at 12:54
Putting some thought into the power use/power generation, will give a basis for forming a view as to what might be needed to cover power supply...
Exact science - not by a long shot, but a good starting point hopefully.