first, decide if you want quiet or cheap. quiet cost more.
second, do you want to use it in a campground? if so, get an inverter generator. they usually are much quieter than 68db, which is loud. there are cheaper alternatives to Hondas/Yamahas. like the Champion 3100w inverter generator.
third, you can get a paired set of 2000w inverter generators, like the Champion 2000w ones that are affordable. then you can use just one unless you need the a/c.
68db is pretty loud.
like the Champion 3500w/4000w open-frame contractor style generators are loud at 68db. i know cause i own one and would NEVER use it in a campground.
inverter generators can adjust rpms based on demand. non-inverter generators run full speed all the time.
so, for just recharging batteries, an inverter generator will run at low rpms, so they are quieter.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC