Where are my house batteries located in my 2017 anthem?
They are mid ship in 2017.
Go to your last storage bay, the one with the battery disconnects on the passenger side. In the middle of that bay is a panel behind which is the battery compartment (pretty much directly below where the inverter is mounted between the frame rails). Entegra moved them them (they used to be in the drivers side front compartment) to provide better weight balance. Not as easy to get to but since it should be only once every 5+ years, a good tradeoff.