Lithium Pros M31-12S 12V Group 31 LiFePO4 Marine Starting Battery

Lithium Pros

<h3>About Lithium Pros</h3><p>Founded in 2011 and headquartered in Knoxville, Tennessee, Lithium Pros was built by a team of energy and motorsport enthusiasts on a single, clear mission: bring the highest-performance, ultra-lightweight lithium-ion batteries to the marine, racing, EV, fleet, and specialty markets. The people behind Lithium Pros aren't just engineers — they're competitors. The team includes drag racers, drifters, off-road racers, SPL and SQ audio competitors, alongside experienced chemists and machinists who understand exactly what it takes to build a battery that performs under real-world punishment.</p><h3>What Sets Lithium Pros Apart</h3><p>The core of every Lithium Pros product is Lithium Iron Phosphate (LiFePO4) chemistry — a stable, high-density cell technology that delivers meaningful advantages over traditional lead-acid batteries. Lithium Pros batteries are approximately three times the energy density of comparable lead-acid units, meaning more power in a dramatically smaller and lighter package. In fact, some models are light enough to float — a genuine advantage for both racing weight reduction and marine buoyancy safety.</p><p>Beyond sheer power density, Lithium Pros batteries hold a higher terminal voltage under load than lead-acid alternatives, translating to hotter ignition, faster cranking, and more consistent current delivery to onboard electronics and accessories. Their LiFePO4 cells are also rated for over five times the charge cycle life of standard lead-acid batteries, and they accept charge current up to five times faster — meaning less downtime between runs or on the water.</p><p>Lithium Pros has earned a proven reputation in competitive motorsport, with a history of use in SCCA World Challenge, Formula Atlantic, drag racing, and more. That same performance DNA carries directly into their marine lineup, which is trusted by many of the world&apos;s top professional anglers.</p><h3>Lithium Pros Product Categories</h3><p>The Lithium Pros catalog is focused and intentional. Their <a href="/18968-lithium-pros-batteries-200137">Batteries</a> lineup spans marine trolling batteries, starting batteries, and racing packs across multiple voltages and capacities — each engineered for a specific application. For anglers, boaters, and racers who demand reliable power management, Lithium Pros also manufactures a complete line of purpose-built <a href="/18968-lithium-pros-battery-chargers-200141">Battery Chargers</a> designed specifically for LiFePO4 chemistry, available in 12V, 16V, 24V, and 36V configurations. These high-frequency chargers are not afterthoughts — they are engineered alongside the batteries themselves to ensure proper charge profiles and maximum cycle longevity.</p><p>For powerboat owners and tournament anglers who need dependable starting power, Lithium Pros offers dedicated <a href="/200366-engine-batteries-lithium-pros-18968">Engine Batteries</a> built to meet or exceed current outboard manufacturer specifications, including compatibility with modern alternator systems. Whether you&apos;re replacing a heavy group-31 AGM with a single lithium unit or upgrading a racing application to a 16V system, Lithium Pros has a solution engineered specifically for the job.</p><h3>The Lithium Pros Commitment</h3><p>Every Lithium Pros product carries a 60-day risk-free guarantee, reflecting the brand&apos;s confidence in its engineering and materials. For racers, anglers, fleet operators, and EV builders who refuse to compromise on power and weight, Lithium Pros represents a technically serious, competition-proven alternative to legacy battery technology.</p>