Welcome to the forums and I’d say you’re worried about some items that I do not worry about… charging electronic as their usage is minor. Even a residential refrigerator is not as much as most think…1.2 to 1.4 Kw/day or 8 amps DC for 10 hours…80AH or one extra battery.
Now the big items like a coffee maker or the micro is real easy, you crank the generator when using them so you are charging them instead of heavily depleting your batteries.
As for solar, you want at least as many watts as you have AH of batteries and double if the batteries are Lithium.
