PV Panels - Grape or Zamp or ?

[astrocamper]

I have three 180 and one 265 watt panels made by Grape Solar. I bought them on sale from Home Depot and didn't have to pay shipping when picking them up from the store. Larger panels need to ship freight so they can be costly to be shipped to home.

I also have a Renology 160 watt panel paired with the Zamp solar controller and 20 watt panel that was prewired in my Arctic Fox.

If I had a huge RV with lots of open roof I would buy a four pack of the Grape Solar 300 watt monocrystalline panels for $1217. My Arctic Fox 22G only has about 20 feet of roof space. One of my 180 watt panels is on the Leer cap of my GMC2500 truck. It powers a 50 amp-hour LiFePO4 battery pair in my truck that I use to run my Engel freezer when going down the road. When I get to camp. I use a large 4 AWG PowerPole jumper between the trucks solar controller and my trailer. I then use the 50 amp hour batteries for my astronomy gear.