Originally Posted by mjdcwo
Also understand that converters aren't intended to power the 12 volt accessories without a battery being connected. The battery provides the required amperage to power the accessories.
I disagree with that statement. A RV's power supply can and will supply all power needed to run your RV without a battery and won't harm anything. Just make sure your positive battery cable secured and not able to short to ground. But remember when towing, a functioning battery is required for emergency brakes.