How long will they power two freezers and a refrigerator and what happens as the batteries age and eventually refuse a charge?
If looking for a practical use of a solar portable generator, that's not it. A better use would be during construction of a new home before power has been installed, doing outside work (read: you won't be working in the rain, so there'll be solar power). Maybe if you find yourself doing a lot of jobs like that, then a solar generator is better in the long run than a gas generator (no moving parts to lead to mechanical failures, no having to buy gas, etc.)
But use cases like that IMHO are rare.
“How long will they power two freezers and a refrigerator”
You take two freezers and a refrigerator with you when you go camping?
>> How long will they power two freezers and a refrigerator
Those “portable” generators? Not long — if at all.
Not long, there is a formula to figure it out.
“How long will they power two freezers and a refrigerator and what happens as the batteries age and eventually refuse a charge?”
Here’s the deal: For gasoline generators, they (the Globalists), so far, cannot seize them from you. Likewise, they have to let you continue driving your gasoline car(s), so you will also have access to fuel for your gasoline generator.
So, my recommendation is to buy a gasoline generator (which I did recently after hearing here that their days are numbered), and then to buy as many spare parts as reasonable (or a second copy...which I’m considering). The net effect is that we will have at least some power for the rest of our relatively short futures (assuming you’re as old as myself), regardless of what our horrific ‘Sustainable Economy’ forces on us.