{"product_id":"dual-battery-switch-12-m750bp","title":"Cole Hersee M750BP 4-Position Dual Battery Selector Switch – 310A, Marine UL Listed","description":"\u003ch2\u003eFull Dual-Battery Control in a Single Heavy-Duty Switch\u003c\/h2\u003e\u003cp\u003eThe Cole Hersee M750BP is a four-position dual battery selector switch that gives you complete control over a two-battery electrical system from a single point. Select Battery 1, Battery 2, Both batteries simultaneously, or cut all power at the source with the Off position. It’s the standard solution for boats with separate starting and house battery banks — letting you isolate, combine, or switch between banks without tools or additional hardware.\u003c\/p\u003e\u003cp\u003eRated at 310A continuous and 500A intermittent across 6–36V DC systems, this switch handles the full electrical load of most marine applications without breaking a sweat. The 3\/8\" copper studs provide low-resistance, high-current connections, and the switch is both ignition protected and Marine UL Listed — meeting the compliance requirements for installation in fuel vapor–prone areas on certified vessels.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4 positions: Off – Battery 1 – Both – Battery 2\u003c\/li\u003e\n\u003cli\u003e310A continuous \/ 500A intermittent current rating\u003c\/li\u003e\n\u003cli\u003eCompatible with 6–36V DC systems\u003c\/li\u003e\n\u003cli\u003e3\/8\" copper studs for high-current, low-resistance connections\u003c\/li\u003e\n\u003cli\u003eIgnition protected — safe for installation near fuel systems\u003c\/li\u003e\n\u003cli\u003eMarine UL Listed\u003c\/li\u003e\n\u003cli\u003ePlastic case, knob, and insulator construction\u003c\/li\u003e\n\u003cli\u003e6\" flange diameter; 2-5\/8\" overall height\u003c\/li\u003e\n\u003cli\u003eSurface mount or panel mount (requires 3-5\/16\" diameter hole)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-battery systems with separate starting and house banks\u003c\/li\u003e\n\u003cli\u003ePowerboats, sailboats, and pontoons with two battery banks\u003c\/li\u003e\n\u003cli\u003eRVs and motorhomes with dual battery setups\u003c\/li\u003e\n\u003cli\u003eCommercial and work vessels requiring battery bank selection\u003c\/li\u003e\n\u003cli\u003e12V and 24V DC marine electrical systems up to 36V\u003c\/li\u003e\n\u003cli\u003eInstallations requiring ignition-protected battery switching\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e The M750BP is the right switch for any dual-battery installation where you want manual control over which bank powers the boat — run on Battery 1 while underway, switch to Battery 2 for house loads at anchor, or combine both for engine cranking when a bank is low. The 310A continuous rating handles full electrical system loads including high-draw accessories, and the Marine UL listing satisfies insurance and ABYC compliance requirements for battery switch installations on certified vessels. The Both position is particularly useful for emergency starting when one bank is depleted.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelated products:\u003c\/strong\u003e For a simple On\/Off master disconnect without battery selection, see the \u003ca href=\"\/products\/cole-hersee-880062bp-sr-series-master-disconnect-switch-12-880062bp\"\u003eCole Hersee 880062BP SR Series Master Battery Disconnect Switch\u003c\/a\u003e. For automatic dual-battery charging management without manual switching, the \u003ca href=\"\/products\/blue-seas-systems-7611-batterylink-acr-automatic-charging-relay-661-7611\"\u003eBlue Sea Systems BatteryLink ACR Automatic Charging Relay\u003c\/a\u003e is a popular companion or alternative.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250885165092,"sku":"12-M750BP","price":206.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/12-M750BP.jpg?v=1786511669","url":"https:\/\/marisolmarine.com\/products\/dual-battery-switch-12-m750bp","provider":"Marisol Marine Company","version":"1.0","type":"link"}