Yes the solar should charge your battery with the switch off. In my sport 16 ft I have an 80 watt panel and it charges my agm battery fine with the switch in the off position. I have a 2018 Sport 16 ft.
This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.