Originally Posted by Homebrew
Battery box comes from Factory on most FR 5ers. It should have s vent hose also.
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Not all of Forest River division provide a top cover and vent hose for the battery compartment. One of them being the Cedar Creek division. The battery compartment is vented but no cover and hose are provided.
My unit does have a non-metallic box, not plastic but a polymer that is compatible to the batteries. This is very similar to what the automotive/heavy duty equipment manufactures build. The batteries are placed in a non-metallic box securely mounted but not vented to the outside of the vehicle.