How is that any different from a decent chargers ability to FULLY charge the batteries, regardless if its from generator, shore power, or the sun? Are solar charges somewhat different from a good 4-stage charger? I thought they were just as good. What am I missing here?
It's not design capability, it's the real world use
Will you leave a generator run for 12 hrs to get those last 2 amp trickle charge into the battery at 14.+v, that it takes to get the battery fully back to complete charge?
Most people will run the generator one of two hours and call it good
But the battery might be some where between 80 and 90 percent maybe even less, no where near fully charged
This is where solar really shines,
It charge all day long even when you are gone hiking or fishing or sight seeing, solar will float the batteries when the TT is stored and not being used, so that the batteries are fully charged when you take off for the weekend
If takes 4 hrs to go from 60 percent charge to 90 percent with the charger and generator, it will take at least 4 more to get to 100 percent, in some cases maybe 8 more hours
For most people the only time this kind of full-time charging take place is when plugged into shore power
