I'd like to mount/position 2X 100ah victron batteries under my motorhome/bus in marine style battery boxes. The location for the boxes, do give some/good protection from road debris, and water ingress would not be an issue. The location is also well away from the engine, so heat will not be an issue either. Maybe I should seal the BSM cable ports?.....Has anyone mounted theirs outside in a box?....cheers, Mike