The Camco 55372 Large Battery Box keeps your Group 27, 30, or 31 battery secured, protected from the elements, and contained against acid spills. Built from heavy-duty corrosion-resistant polypropylene and supplied with a complete hardware kit, it meets USCG CFR 183.420 and ABYC E-10.7 standards -- making it a solid choice for RVs, boats, trailers, and off-grid setups alike.
Whether you are running a Group 31 deep-cycle house battery in a fifth wheel or a Group 27 starting battery on a pontoon, this box locks the battery in place and shields the terminals from road spray, rain, and corrosive fumes. The lift-off lid adds 2 inches of headroom above the battery case, giving terminals and cable connections room to breathe without cramping against the cover.
At just 1.5 lbs, the box itself adds minimal weight to your setup. The included foot clamps and screws anchor the box to a battery tray or platform; the hold-down strap secures the battery inside. Everything you need to install it is in the box.
Fits Group 27, 30, and 31 battery sizes -- the most common large-format batteries used in RVs, marine, and solar applications.
Includes the box, lift-off lid, hold-down strap, two foot clamps, and four screws. No extra hardware needed for a basic install.
Heavy-duty polypropylene resists battery acid, road salt, and UV exposure -- stays functional season after season.
Meets USCG CFR 183.420 and ABYC E-10.7 specifications, so it qualifies for boats and other regulated installations.
Position the battery box on a flat, stable surface -- battery tray, floor of a compartment, or deck surface. Use the two foot clamps and four screws to secure the box in place. Set the battery inside, route your cables out through the appropriate openings, fasten the hold-down strap, and snap on the lid. No cutting or drilling of the box is typically required for standard installations.
Polypropylene is the industry-standard choice for battery enclosures because it resists sulfuric acid fumes and liquid spills, does not corrode, and holds up to temperature cycling in engine and storage compartments. The black color resists fading better than white or gray alternatives in sun-exposed locations.