Hikermor — don’t toss that GZ Nomad 7 just yet. The testing I’ve done and will complete soon (I need to double check some numbers) show the Nomad 7 doing okay.
Goal Zero Nomad 7: USB: 4.64 volts, .95 amps = 4.41 watts — which is 63% of the number in its name, not bad at all and easily enough to charge a cellphone.

I’ll publish all the numbers later (maybe today).

Almost done. I’m waiting for a solar panel manufacturer to get back (or not) regarding poor performance of their panel. So far they haven’t even acknowledged the email, so I will probably delete the name of the panel in the results summary. I may even just delete that panel from the summary.

Having a portable solar panel would be great to have in a bug-out kit, or during the aftermath of a massive earthquake or other natural disaster that can break the electric grid locally. It would also be very nice to have following a massive solar flare event such as the Solar storm of 1859 aka the Carrington Event, if the solar panel survives the event.

I would just post the results of that panel. If the panel doesn't work as it's supposed to, and the manufacturer doesn't respond, then that is valuable information that people may want to know. No need to editorialize on those particular results. Just post them, and they will speak for themselves.

"Panel XYZ from manufacturer ABC, advertised MNO watts, measured TUV watts. Attempted to contact manufacturer about the apparent discrepancy and testing methods, but received no response."

Posting factual stuff like the above is fine. But editorializing by saying something like, "Manfuacturer ABC is a total *&%^! and I would never buy their piece of ^&*$ product!!!" might get you into trouble.