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12V Lithium Upgrade

Whether you are powering a trolling motor in heavy chop, winching a car up on a trailer, or keeping your camper refrigerator running for a long weekend, your 12-volt battery system is the heart of your setup.

Why switch to a 12V lithium battery?

For decades, heavy lead-acid and AGM (Absorbed Glass Mat) batteries were the industry standard. Today, modern 12V Lithium Iron Phosphate (LiFePO4) technology is a massive upgrade, offering unmatched power, longevity, and weight savings.

Upgrading your marine, camper, or trailer setup from traditional lead-acid to lithium provides immediate, real-world performance benefits:

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Up to 80% Weight Reduction

A typical Group 31 AGM battery weighs between 65 and 86 lbs. A premium 12V lithium battery weighs only 24 to 36 lbs. This reduces trailer tongue weight, improves vehicle fuel economy, and reduces boat draft for easier shallow-water navigation.

No "Voltage Sag"

Lead-acid batteries lose voltage as they drain, which causes trolling motors to lose thrust, trailer jacks to struggle, and marine graphs to "reset" when starting an engine. Lithium maintains a flat discharge curve (12.8V–13.2V), delivering full power until the battery is nearly empty.

Double the Usable Capacity

Discharging a standard lead-acid battery past 50% can permanently damage it. Lithium Pros batteries can safely handle a 100% Depth of Discharge (DoD), effectively doubling your usable runtime in the same footprint.

Superior Lifespan (3,000+ Cycles)

While a lead-acid battery lasts 2 to 3 seasons, a quality LiFePO4 battery delivers 3,000+ charge cycles (lasting 10+ years), making it the most cost-effective long-term investment.

Technology

All Lithium Pros Batteries offer a built in Smart BMS with safety at the forefront. Should trouble arise, features like short circuit protection, low voltage protection and over voltage protection are present in every Lithium Pros battery to keep you and your investment safe. The LP Battery View app allows you to see things like time remaining, current load on the battery, and temperature from three different points on the battery.
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Three series, matched to your electrical demands

Lithium Pros designs distinct battery series to match specific electrical demands. Choosing the right series ensures you get the exact performance you need without paying for features you don't use.
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L-Series

High-Value Deep Cycle Power

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High-Value Deep Cycle Power

The L-Series is the ideal entry point for long-duration, low-to-medium draw electrical needs.

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Key Spec: Features a 60A continuous discharge limit managed by the internal Battery Management System (BMS).

Built-In Bluetooth: Use the LP Battery View App to monitor state of charge, voltage, and current draw in real-time.

Safety: All Lithium Pros batteries offer short circuit protection, low voltage cut off and high voltage cut off

Best For: 12V trolling motors, camper/RV house batteries, and general trailer accessories (interior lights, electric jacks, breakaway systems, small air compressors).

Note: The 60A limit means the L-Series is not designed for engine starting or heavy-duty hydraulic dump trailer winches.
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M-Series

Cold-Weather & High-Performance

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Cold-Weather & High-Performance

The M-Series is engineered for demanding applications and users who brave the elements.

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Built in

Engine Starting Power: Features up to 1,500 Marine Cranking Amps (MCA), allowing it to easily crank massive outboard engines while powering multiple 12" graphs and forward-facing sonar simultaneously.

Exclusive Dual-Mode Heating: Built-in heating pads automatically warm the battery cells when charging in freezing weather. You can also use the app to activate "Auto Heat" before you reach the boat ramp.

Best For: Tournament anglers, cold-climate boaters, high-draw 12V starting/house combinations, and trailers with heavy amperage equipment like winches, lifts, and large inverters
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N-Series

NMEA 2000 Integrated Intelligence

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NMEA 2000 Integrated Intelligence

The N-Series represents the peak of marine system integration.

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Built in

NMEA 2000 Micro Port: Plug these batteries directly into your boat's digital backbone to view live voltage, state of charge, temperature, and alarms directly on your GPS or chartplotter screen.

High Output: Like the M-Series, the N-Series delivers high cranking power (up to 1,350 Cranking Amps on models like the N3110-S) and meets strict Mercury Marine specifications.

Best For: Modern, fully networked boats with advanced marine electronics suites.
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Lead-acid & AGM vs. 12V lithium

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12V lithium (LiFePO4)

Lead-acid / AGM

Weight (Group 31)

24 to 36 lbs

65 to 86 lbs

Discharge curve

Flat (12.8V–13.2V)

Loses voltage as it drains

Usable capacity

100% Depth of Discharge

Damage past 50%

Lifespan

3,000+ cycles (10+ years)

2 to 3 seasons

Monitoring

Smart BMS & LP Battery View app

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Smart Protection Built for Rugged Use

Every Lithium Pros battery is equipped with an advanced, integrated Battery Management System (BMS) that ensures safety and cell longevity:

IP67 Waterproof Rating

Sealed rigid cases protect internal electronics against dust, heavy rain, splashing, and vibration.

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Safety Shutoffs

Automated protection against short circuits, over-voltage, and over-current.

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Cold-Weather Protection

Prevents charging when internal temperatures fall below 32°F (0°C), ensuring the lithium cells are never damaged by freezing temperatures.

Frequently asked

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How much weight will I save with lithium?

A typical Group 31 AGM battery weighs between 65 and 86 lbs. A premium 12V lithium battery weighs only 24 to 36 lbs. This reduces trailer tongue weight, improves vehicle fuel economy, and reduces boat draft for easier shallow-water navigation.

Can I fully discharge a lithium battery?

Discharging a standard lead-acid battery past 50% can permanently damage it. Lithium Pros batteries can safely handle a 100% Depth of Discharge (DoD), effectively doubling your usable runtime in the same footprint.

Can the L-Series start my engine?

The 60A limit means the L-Series is not designed for engine starting or heavy-duty hydraulic dump trailer winches.

Which series handles cold weather?

Built-in heating pads automatically warm the battery cells when charging in freezing weather. You can also use the app to activate "Auto Heat" before you reach the boat ramp.

What happens if I charge below freezing?

Prevents charging when internal temperatures fall below 32°F (0°C), ensuring the lithium cells are never damaged by freezing temperatures.

Can I see battery data on my chartplotter?

Plug these batteries directly into your boat's digital backbone to view live voltage, state of charge, temperature, and alarms directly on your GPS or chartplotter screen.

What does the LP Battery View app show?

The LP Battery View app allows you to see things like time remaining, current load on the battery, and temperature from three different points on the battery.

Unmatched power, longevity, and weight savings.

Choosing the right series ensures you get the exact performance you need without paying for features you don't use.

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