We run power to 48 V nominal battery suite via a total of 1500 W battery chargers. AC is the through PSWI and DC via 48 V to 12V converter. We burned out a microwavee in Baja and then another in Yucatan due to highly varying voltage.
Mike and Terry Church suggest this method on page 41 of their Fourth Edition of "Mexican Camping"
Currently sun has been excellent and have used line power once in last three weeks when it rained most of the day and we left fridge on electric till well after dark.
Reed and Elaine