On such a new RV I would contact Forest river
You don't need to use the DEALER you bought the RV from to get something looked at
You have a warranty from forest river for the initial 12 months (or so)
It may also be due USER error that the starting battery is getting drained.
It should NOT be connected to the house / coach system while parked
The solar charger if connected to starting battery..... should not drain the battery
Before getting a tech guy to look (may cost you if it is determined user error)
Find youtube videos and or articles on how chassis and house batteries are combined ..
ask others in campground with similar RV's
even your campground host might be helpful.
OR just simply go to a dealer near you ...
at a not so busy time.
ask if someone can confirm how it is suppose to work.
Buy something from them to show appreciation...
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3002 Coast Ct, Elkhart, IN 46514
looks like Way interglobal was bought out by Lippert / Furrion
https://www.businesswire.com/news/ho...al-Network-LLC
Way Interglobal's web site is down
https://www.wayinterglobal.com
Face book not updated since October
https://www.facebook.com/wayinterglobal/