Pro Mariner 51815 DC Cable Extender 15ft Marine Battery Charger Extension

Pro Mariner

<h3>Pro Mariner: Four Decades of Marine Charging Excellence</h3><p><strong>Pro Mariner</strong> (ProMariner) has spent over four decades with a single driving mission: making time on the water more enjoyable. Founded in 1978 with one premise — to make boating more enjoyable — the brand has grown into one of the most recognized names in marine electrical systems. Today, ProMariner is an industry pioneer in marine and mobile batteries, providing fast-charging and fully automatic capabilities designed to keep you on the water longer.</p><p>For over 40 years, ProMariner has been dedicated to making boating more enjoyable through a robust line of fully automatic onboard marine battery chargers — a modern method of charging batteries at high speed that eliminates the need for storing or carrying portable battery chargers onboard. Today, ProMariner is part of the Navico Group, a single-source provider of innovative products and solutions that power adventures on the water and the road.</p><h3>A Full Suite of Marine Electrical Solutions</h3><p>ProMariner's strength lies in the breadth and depth of its marine electrical lineup. At its core are the brand's flagship <a href="/7504-pro-mariner-battery-chargers-200141">marine battery chargers</a>, engineered for reliability in the harshest saltwater and freshwater environments. ProMariner delivers specialized lines such as the ProSport Series for heavy-duty recreational charging, the ProTournament Series for professional-grade solutions with elite wired remotes, and the ProNautic Series for precision dry-mount applications with interactive digital displays — compatible across lead-acid, AGM, GEL, and LiFePO4 chemistries.</p><p>Beyond chargers, ProMariner offers a complete ecosystem of marine power management products. Their <a href="/7504-pro-mariner-inverters-200588">inverters</a> — sold under the TruePower Plus line — convert DC battery power to AC for onboard appliances and electronics. Pure sine wave inverters provide dependable AC power for sensitive electronics and high-load equipment on board. Complementing these are Pro Mariner's <a href="/7504-pro-mariner-battery-isolators-voltage-sensitive-relays-200144">battery isolators and voltage sensitive relays</a>, which allow boaters to manage multiple battery banks safely. Smart battery isolators protect multi-bank systems from cross-discharge and simplify dual and tri-battery installations.</p><p>For boats docked at marinas, ProMariner's <a href="/7504-pro-mariner-galvanic-isolators-200465">galvanic isolators</a> are a critical line of defense. Galvanic isolators safeguard against stray current corrosion — a silent threat that can cause serious damage to underwater metals over time. ProMariner also offers a range of <a href="/200142-battery-chargers-pro-mariner-7504">vented and dry-mount battery chargers</a> suited to different installation environments, giving boaters the flexibility to choose the right mounting solution for their vessel.</p><h3>Built for the Marine Environment</h3><p>IP-rated waterproof construction, corrosion-resistant components, and robust design ensure ProMariner products hold up in harsh marine environments. Whether you operate a bass boat, a cruiser, a sailboat, or a commercial vessel, ProMariner chargers come in various amperages and bank configurations to fit sailboats, trawlers, yachts, and fishing boats. Tried, tested, and trusted, ProMariner products are the go-to chargers for professionals and pleasure seekers alike — designed for easy installation and effortless operation, so you can focus on enjoying the water.</p>