ianmac23 wrote:
I am not sure of the exact converter. I have a 2011 Keystone Passport Ultralight.
All 2006 and newer can operate without a battery.
Still need to know the converter.
Fact is you can have the batteries charging from the converter and portable charger at the same time.
You are making assumptions based on what you read which may or may not be relevant to your system. Don't believe everything you read and don't make life harder than it needs to be. Your system was designed to operate the way the factory built it. Improvements can be made but until you really understand how the systems operate just leave them alone.
Spend many hours and hours on here educating yourself. Once you thoroughly understand how everything works, then you start making modifications. Before that, do yourself a favor and leave it alone.