New Solar Panel

I've been dry camping for years, and to confirm what some others have stated indirectly, that 5 watt panel is useless. All it can charge is your camera. I have a 55 watt panel that just keeps up with basic needs. Running a furnace for an hour, some lights, some use of water pump for showers (I have onboard shower). We even unplug the battery from pup during the day so we don't get phantom draw from propane detector. We'll dry camp for two weeks at a time and I carry a 2nd battery.
You need to understand amp-hours, what your appliances draw in amp hours, how much actual charging you will get from that panel (probably only an amp hour or two for an entire day.