{"product_id":"enerdrive-b-mc-612-dual-h","title":"Balmar 12V MC-612-DUAL Dual Alternator Multi-Stage Regulator with Harnesses","description":"\u003ch2\u003eSynchronised Dual-Alternator Regulation for High-Output 12V Battery Banks\u003c\/h2\u003e\n\u003cp\u003eManaging high-capacity house battery banks in marine and off-grid applications often requires more charging amperage than a single alternator can safely deliver. The \u003cstrong\u003eBalmar 12V MC-612-DUAL\u003c\/strong\u003e is purpose-built for single-engine installations using two alternators to charge a shared 12V battery bank. By coordinating the field excitation of both charging sources simultaneously, this external multi-stage regulator helps avoid the voltage conflicts, uneven load sharing, and premature component failure that typically occur when pairing independent regulators on a single battery bank.\u003c\/p\u003e\n\u003cp\u003eUnlike standard factory voltage regulators that apply a fixed voltage and rapidly taper charging current, the MC-612-DUAL employs advanced multi-stage charging logic. This ensures your deep-cycle batteries receive optimal bulk, absorption, and float charge stages, reducing engine run times and maximising battery lifespan across demanding marine and mobile electrical systems.\u003c\/p\u003e\n\n\u003ch3\u003eEngineered for Seamless Twin-Alternator Integration\u003c\/h3\u003e\n\u003cp\u003eInstalling twin alternators on a single engine presents unique wiring and control challenges. The MC-612-DUAL simplifies this architecture by providing dedicated, separate connection sets for both alternators right on the regulator board. This includes two field-output connectors, two power-input connectors, and two system-ground connections, allowing both charging sources to be controlled from a single unified processor.\u003c\/p\u003e\n\u003cp\u003eThis version comes complete with the required wiring harnesses, streamlining the installation process for marine electricians and system builders. By regulating both alternators from a single voltage-sensing point, the system ensures balanced field output so neither alternator is overworked while charging the primary house bank.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and System Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin-Alternator Synchronisation:\u003c\/strong\u003e Designed specifically for single-engine 12V setups where two alternators feed a unified battery bank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Dual Connections:\u003c\/strong\u003e Features twin field-output, power-input, and ground terminals to accept two separate wiring harnesses directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete with Harnesses:\u003c\/strong\u003e Supplied with the necessary wiring harnesses for straightforward integration into your engine bay and charging circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSix Selectable Battery Profiles:\u003c\/strong\u003e Pre-programmed multi-stage charging curves tailored for LiFePO4 (Lithium), AGM, Spiral-Wound AGM, Gel, Deep-Cycle Flooded, and Standard Flooded batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment Protection Mode:\u003c\/strong\u003e Includes a universal default program designed for vessels using voltage-sensitive halogen equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Risk of Overcharging:\u003c\/strong\u003e Replaces basic single-stage regulation with intelligent multi-stage control to protect expensive battery investments from overcharging or chronic undercharging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTailored Charging for Modern Battery Chemistries\u003c\/h3\u003e\n\u003cp\u003eEvery battery chemistry requires a specific voltage curve to reach 100% state of charge safely. The Balmar MC-612-DUAL eliminates guesswork with six user-selectable programs. Whether you are upgrading a cruising yacht to a high-density \u003cstrong\u003e12V LiFePO4 lithium battery bank\u003c\/strong\u003e or maintaining heavy-duty \u003cstrong\u003eAGM and Gel batteries\u003c\/strong\u003e, the regulator adjusts bulk and absorption parameters to suit the exact chemistry in use.\u003c\/p\u003e\n\u003cp\u003eFor vessels running voltage-sensitive halogen equipment, the built-in universal default program is designed for that equipment.\u003c\/p\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cp\u003eThe MC-612-DUAL suits high-demand 12V DC systems where engine space or belt load limits the size of a single large-frame alternator and twin smaller-frame alternators are fitted:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCruising yachts and sailboats with single auxiliary engines and large house banks\u003c\/li\u003e\n\u003cli\u003eCommercial marine vessels requiring high-amperage 12V charging\u003c\/li\u003e\n\u003cli\u003eCustom off-grid expedition vehicles and specialist mobile command units with dual-alternator engine brackets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUpgrade Your Marine Charging Architecture\u003c\/h3\u003e\n\u003cp\u003eEquip your single-engine twin-alternator setup with the Balmar 12V MC-612-DUAL regulator and harnesses to achieve balanced, multi-stage charging performance for your primary battery bank.\u003c\/p\u003e","brand":"Balmar","offers":[{"title":"Default Title","offer_id":43629655556157,"sku":"B-MC-612-DUAL-H","price":722.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/balmar-12v-dual-alternator-regulator-b-mc-612-dual-h.png?v=1792490777","url":"https:\/\/www.solar4rvs.com.au\/products\/enerdrive-b-mc-612-dual-h","provider":"Solar 4 RVs","version":"1.0","type":"link"}