I have an Onan 2.4 kw in my rv. It will power the a/c or the microwave, but not both at the same time. It will charge batteries.. If I got a big sound system, then I could drown out the noise of the generator, but then that would defeat the whole purpose of camping out with acoustic players, so I only rarely use the generator. BTW, I have to put in a new air filter each year, and adjust the mixture for the altutide I am at, or it will not deliver full power.
MD