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Lithium Pros N31150-S 12V 150Ah Marine Starting Battery with NMEA 2000

Manufacturer

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>

Part Number

N31150-S
09/13/2036 7:24 AM
Sale Price

$1,899.00

In Stock (7)

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Usually delivered within 2 days

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Product Details

The Lithium Pros N31150-S is an advanced 12.8V 150Ah lithium iron phosphate (LiFePO4) marine starting battery featuring built-in NMEA 2000 connectivity. This starting and deep cycle battery is designed for serious anglers who demand real-time battery monitoring directly on their multifunction displays.

NMEA 2000 Connectivity:

The N31150-S directly connects to the NMEA 2000 network with an embedded BM-21 battery monitor that is NMEA 2000 certified and features a micro port on the battery, making it plug and play with all NMEA 2000 multi-function displays. The system displays individual battery voltage, current, time remaining, state of charge, and temperature all on the network.

Key Features:

  • Meets the Sept 19, 2022 Mercury specifications for a lithium-ion engine start battery
  • Compatible with all outboards and alternators
  • Replace two group 31 AGM batteries with this ONE battery
  • Ultra lightweight at approximately 36 pounds—that's 1/4 of the weight of two Group 31 AGM batteries
  • High power Lithium Iron Phosphate chemistry holds a higher voltage as it is discharged, eliminating graph reset issues during engine cranking
  • Accept charge current up to five times faster than lead-acid batteries
  • Provides over five times the cycle life with 2,500+ cycles at 80% depth of discharge
  • 96% efficient at converting input energy into stored energy versus approximately 75% for lead acid

Specifications:

  • Voltage: 12.8V
  • Capacity: 150Ah
  • Chemistry: Lithium Iron Phosphate (LiFePO4)
  • NMEA 2000 certified with BM-21 embedded battery monitor
  • Compatible with existing 12V AGM battery chargers
  • BCI Group 31 size

Ensure the charger's float voltage is 13.5V or less and never exceeds 14.8V. Not for use in series to make higher voltage packs—12V systems ONLY.

Good experience

Friendly, Helpful, Great Price !! Shipping was Fast

aok

So far, so good!

Best price I could find, good service and prompt delivery. Thanks, it's just what I needed. Steve C

Good price and the delivery was ahead of schedule.

Very fast shipping, now looking to purchase the front kit!

All good

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