I have 2 panels but it is not just how many (mine are 150 watts each for total of 300 watts), you need to start with evaluating what your amp hour usage will be from your batteries, next install enough battery bank power to cover your needs then figure enough panel wattage/amps hours in solar to replenish your usage each day with around 5 or 6 hours of good sunlight (you normally will get more sun than that but this gives some cushion for cloudy days).
Dale & Terri, Lulu & Tiki (our Chihuahua's), New rescue puppy Prince - Pom/Pug mix.
2013 Tundra, Double Cab, 5.7, TRD Off-Road, 4X4, Full Tow Package
2013 Wildwood T26TBSS - Sold
2000 Gulf Stream Sun Voyager M-8357 MH, Ford Trident V10 Gasser, 35 foot.