Believe it depends on the build date of your MH. From other posts on this forum I understand Forest River changed the "C" wiring to have the converter stay connected with the switch in either position. I also understand FR changed converter manufacturer to Progressive Dynamics (from WFCO). Both converters should not cook the batteries...
Try looking through the posts in the Forester, Sunseeker and Solera forums. BClemens is a factory Rep who has posted on this subject in those areas.
2012 Solera "S"
Calif SF Bay Area