I have a plethora of solar and about 200 amp hours of battery. I wish I had 400 ish amp hours of battery.
I've also got a 2000 watt inverter. I shoe-horned it in under the bathroom enclosure where the sink is, which is just above the battery compartment.
I had to re-do the plumbing drain on the bathroom sink to get the inverter to fit.
I run my microwave quite a bit, but the last 2 years I can't get very good run time out of the batteries because they are toast, and I haven't been able to justify the expense of replacing them yet since I don't use the camper much since 2012.