Pro Mariner 23124 ProIsoCharge Battery Isolator 120 Amp 12V 1-to-3 Banks

Pro Mariner

<h3>About Pro Mariner: 40 Years of Marine Charging Leadership</h3><p>Founded with a single mission — to make boating more enjoyable — <strong>Pro Mariner</strong> (also written ProMariner) has spent over four decades pioneering fully automatic, onboard marine battery charging technology. What began as a straightforward solution to eliminate the hassle of portable chargers has grown into a comprehensive ecosystem of marine power products trusted by anglers, cruisers, and professional mariners alike.</p><p>Pro Mariner's defining achievement was revolutionizing how boats manage battery power at the dock and underway. Marine battery chargers from ProMariner were among the first in the industry to offer both waterproof and dry-mount configurations, making them suitable for engine compartments, bilges, and every demanding onboard environment. Their chargers are designed to work with all major battery chemistries — flooded lead-acid, AGM, gel, and lithium (LiFePO4) — so boaters never have to compromise based on the batteries they run.</p><p>What truly sets Pro Mariner apart is the intelligence built into every product. Their multi-stage charging algorithms and microprocessor-controlled circuitry prevent overcharging, while their Distributed On Demand&trade; charging technology actively senses which battery bank needs power most and routes current accordingly. The result is longer battery life and more time on the water between replacements.</p><p>Beyond chargers, Pro Mariner's lineup of marine inverters brings reliable AC power to vessels that demand it — from sensitive navigation electronics to onboard appliances. Their True Power and TruSine series deliver clean, stable power conversion built to withstand the heat, vibration, and moisture of a marine setting.</p><p>Protecting multi-battery installations is equally important, which is why Pro Mariner also offers a respected line of marine battery isolators and galvanic isolators. The ProSafe FailSafe series, for example, guards against cross-discharge between battery banks and protects hulls from galvanic corrosion when connected to shore power — a concern every boater with a shorepower hookup should take seriously.</p><p>In 2022, ProMariner became part of the <strong>Navico Group</strong>, a global leader in marine electronics and power solutions. This alignment with one of the industry's premier technology groups has further strengthened Pro Mariner's ability to develop next-generation products while maintaining the rugged, purpose-built quality the brand is known for.</p><p>Whether you're rigging a bass boat for tournament fishing, outfitting a coastal cruiser, or maintaining a commercial vessel, Pro Mariner's product range — from the entry-level ProSport series to the multi-bank ProNautic and ProTournament platforms — offers a solution sized and priced for the job. With an industry recognition that includes the 2010 IBEX Innovation Award, Pro Mariner continues to set the standard for dependable marine electrical performance.</p>