So sorry for the tardy reply; I missed this somehow. It's an Osprey 200 not a 175, but I put a pair of batteries in the bow locker, housed in a rectangular milk crate, for the new 24 volt RipTide Ulterra, and a pair in the console for house/starting. There will be a DIY feature in BoatUS magazine on that project in a 2018 issue. -- Dan