10 Best Battery for 55LB Thrust Trolling Motor

I’ve spent countless hours testing batteries for my 55lb trolling motor, and I’ll share what actually works. Finding the right power source can mean the difference between a full day on the water or being stranded with a dead battery. After comparing weight, capacity, and runtime across dozens of options, I’ve narrowed it down to 10 batteries that deliver reliable performance when you need it most. Let’s see which one fits your needs.

VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Battery for Trolling Motors

The VMAX MR107-85 stands out as a powerhouse option for serious anglers using 55lb thrust trolling motors. This 12V 85AH AGM deep cycle battery delivers impressive run times: 7.3 hours at low speed, 4.4 hours at medium, and 1.5 hours at maximum thrust.

I love that it’s completely maintenance-free—no water additions or gravity checks needed. At 57 pounds with dimensions of 10.2″×6.6″×8.5″, it’s substantial but manageable. The 8mm terminals and BCI group 24 classification make it widely compatible.

What’s particularly valuable is its shock resistance and versatile mounting options. With a solid 1-year warranty and 4.4-star rating, it’s a reliable investment for your fishing adventures.

Best For: Anglers who need a reliable deep cycle battery for 12V 55lb thrust trolling motors, requiring extended run times and shock resistance in marine environments.

Pros:

• Impressive run times (7.3 hours at low speed, 4.4 hours at medium speed) with 85Ah capacity
• Completely maintenance-free with AGM technology that resists shocks and vibrations
• Versatile mounting options and compatibility with series/parallel configurations for 24V/36V/48V systems

Cons:

• Relatively heavy at 57 pounds, which may be challenging for some users to transport
• Higher price point compared to standard lead-acid marine batteries
• Limited 1-year warranty period compared to some competitors that offer longer coverage

Vmaxtanks MR107-85 12V 85AH Marine AGM Deep Cycle Battery for Trolling Motors

Boaters seeking dependable power for their trolling motors will find Vmaxtanks MR107-85 12V 85AH Marine AGM Deep Cycle Battery a compelling option. This Group 24 AGM battery is specifically designed for 12V 30-55lb thrust trolling motors from brands like Minn Kota and Newport Vessels.

I’ve found its maintenance-free design particularly convenient, with the electrolyte absorbed by glass mats between plates for enhanced shock resistance. You can wire multiple units in series for 24V, 36V, or 48V systems.

User experiences vary—some report up to 10 years of service with regular use, while others note failures after 2-3 years. For maximum performance, I recommend NOCO smart chargers.

Best For: Boaters and anglers who need a reliable deep cycle battery for small to mid-sized trolling motors (30-55lb thrust) and want a maintenance-free power solution.

Pros:

• Maintenance-free AGM design with good vibration resistance makes it ideal for marine environments
• Versatile installation options allow for series connection to create 24V, 36V, or 48V systems
• Compact Group 24 size (10.2 x 6.6 x 8.3 inches) fits well in standard battery compartments

Cons:

• Inconsistent longevity with some users reporting failures after 2-3 years
• Requires specific smart chargers for optimal performance and lifespan
• Smaller terminals than automotive standard batteries can make connections challenging

LiTime 12V 100Ah LiFePO4 Battery for Trolling Motors (2-Pack)

Lightweight champions in the trolling motor battery world, LiTime’s 12V 100Ah LiFePO4 batteries deliver exceptional power while weighing just 22.2 pounds each. These lithium powerhouses provide 1280Wh of energy—twice what you’d get from lead-acid alternatives.

I’m impressed with the built-in Bluetooth monitoring that connects automatically, letting you check status and control discharge on your phone. With 4000+ deep cycles and a 10-year lifespan, they’ll outlast traditional batteries many times over.

Users report getting 2-3 outings before recharging, and the IP65 water resistance adds peace of mind on the water. The 20+ safety protections prevent damage from temperature extremes and overcharging.

Best For: Anglers, RV owners, and off-grid enthusiasts seeking a lightweight, long-lasting power solution with twice the energy capacity of traditional lead-acid batteries.

Pros:

• Exceptionally lightweight at 22.2 pounds each, making installation and transport significantly easier
• Built-in Bluetooth monitoring allows real-time battery status checking and discharge control via smartphone
• Superior lifespan with 4000+ deep cycles and comprehensive safety features including IP65 water resistance

Cons:

• Cannot be used as starting batteries, for golf carts, or with jacks (energy storage only)
• Occasional Bluetooth connectivity issues reported by some users
• Higher initial investment compared to traditional lead-acid batteries despite long-term value

Mighty Max 12V 55Ah Deep Cycle Battery for Trolling Motors

For anglers seeking reliable power for their trolling motor without breaking the bank, Mighty Max’s 12V 55Ah Deep Cycle Battery delivers impressive performance in a maintenance-free package.

This SLA battery comes fully charged, weighs 36.7 pounds, and has earned 4.5 stars from over 1,600 customers. I’ve found it powers a 36lb thrust motor for about 4 hours on a single charge. It’s resilient against shocks and vibrations while performing well in varied temperatures.

Remember not to discharge below 25% capacity to maximize lifespan. With its one-year warranty and spill-proof design, it’s an excellent choice for small to mid-sized trolling applications.

Best For: Anglers with small to medium-sized boats who need reliable power for trolling motors without requiring extensive runtime or heavy-duty performance.

Pros:

• Maintenance-free SLA design with spill-proof operation makes it easy to install in various positions
• Provides approximately 4 hours of runtime with a 36lb thrust motor on a single charge
• Durable construction that withstands shocks, vibrations, and performs well in various temperature conditions

Cons:

• Heavy at 36.7 pounds, making it challenging to transport or swap out on the water
• Battery performance drops significantly after about 1.5 hours of continuous use
• Requires careful monitoring to avoid discharging below 25% capacity, which can shorten battery lifespan

ECO-WORTHY 12V 50Ah Trolling Motor LiFePO4 Lithium Battery with BMS

The ECO-WORTHY 12V 50Ah LiFePO4 Lithium Battery stands out as a powerhouse solution for anglers seeking reliable power with minimal weight. At just 12.65 pounds—42% lighter than comparable lead-acid batteries—it’s exceptionally portable for outdoor use.

I’m impressed by its 640Wh capacity that supports 30-50lb trolling motors like Minn Kota and Newport Vessel. The built-in 50A BMS provides thorough protection while maintaining 80% capacity even after 3000 cycles.

Charging is convenient with three options: the included 10A charger (5-hour full charge), solar panels, or generators. With stellar 4.5/5 star ratings, this battery delivers exceptional performance for serious fishing expeditions.

Best For: Anglers and boaters seeking a lightweight, long-lasting power solution for small to medium trolling motors who value portability and reliability for extended fishing trips.

Pros:

• Exceptionally lightweight at 12.65 pounds (42% lighter than lead-acid equivalents), making it easy to transport and install
• Outstanding 3000-15000 deep cycle lifespan with 80% capacity retention after 3000 cycles, providing excellent long-term value
• Comprehensive built-in 50A BMS protection system that safeguards against common battery failures while enabling versatile charging options

Cons:

• Not compatible with high-power applications like the Ryobi RM300E lawn mower in 48V 50Ah configuration
• Some customers reported missing accessories or initial customer service delays requiring follow-up
• Higher upfront cost compared to traditional lead-acid batteries, despite better long-term value

LiTime 12V 50Ah Lithium LiFePO4 Battery with Built-in BMS

Many boaters seeking a long-lasting power solution will find the LiTime 12V 50Ah Lithium LiFePO4 Battery with Built-in BMS compelling. At just 11.57 pounds, it’s remarkably lightweight yet delivers impressive performance with 4000+ cycles and a 10-year lifespan.

I’ve found this battery particularly suitable for trolling motors in the 20-45lbs thrust range. While it’s rated for a 55lb motor, expect shorter run times – about 3 hours with a 62lb thrust motor. The built-in BMS protects against overcharging and overdischarging, while the compact dimensions (6.54D x 7.68W x 6.77H) fit most battery boxes.

Best For: Boaters and outdoor enthusiasts seeking a lightweight, long-lasting power solution for small to medium trolling motors, camping equipment, or off-grid applications requiring reliable battery performance.

Pros:

• Extremely lightweight at just 11.57 pounds, making it significantly easier to transport than comparable lead-acid batteries
• Impressive longevity with 4000+ cycles and 10-year lifespan, representing excellent long-term value
• Built-in BMS protection system safeguards against overcharging and overdischarging, enhancing safety and battery life

Cons:

• Limited run time with larger trolling motors (only about 3 hours with a 62lb thrust motor)
• Higher upfront cost compared to traditional lead-acid batteries despite better long-term value
• Some customers report needing replacement after 11-16 months, which falls short of the advertised 10-year lifespan

12V 100Ah LiFePO4 Deep Cycle Marine Battery with Built-in BMS

Weighing a mere 17.19 pounds, the 12V 100Ah LiFePO4 Deep Cycle Marine Battery stands out as an ultralight powerhouse for anglers seeking extended time on the water. Its 1280Wh capacity delivers twice the runtime of traditional 60Ah batteries while maintaining charge above 75% after 1.5-2 hours at full throttle.

I love the versatility this battery offers with its multiple connection options including cigarette lighter, Anderson plug, and USB port. The built-in 100A BMS protects your investment while supporting impressive 8000+ cycle lifespan. For 55lb thrust motors, you’ll appreciate the real-time capacity display and compact 10.82 x 9.25 x 6.49-inch footprint that fits easily in small boats.

Best For: Anglers, RV owners, and outdoor enthusiasts seeking a lightweight, long-lasting power solution with multiple connection options and real-time capacity monitoring.

Pros:

• Exceptional weight-to-capacity ratio at just 17.19 pounds for 100Ah, making it 80% lighter than equivalent lead-acid batteries
• Versatile connection options including cigarette lighter, Anderson plug, waterproof LD20 port, and USB charging for multiple devices
• Impressive 8000+ cycle lifespan with built-in BMS protection, offering significant long-term value over traditional marine batteries

Cons:

• Some users report inaccurate percentage readings on the built-in display, potentially requiring additional Bluetooth monitoring
• Internal components show quality concerns with hot-glued lithium packs and LEDs causing parasitic drain
• Surface charge voltage fluctuations (up to 43.8V dropping to 39.9-40V) may affect sensitive electronics without proper regulation

ECO-WORTHY 24V 100Ah LiFePO4 Lithium Battery with Bluetooth

Anglers seeking the perfect power source for a 55LB thrust trolling motor will find the ECO-WORTHY 24V 100Ah LiFePO4 Lithium Battery an exceptional choice. With its Bluetooth connectivity, I can monitor battery status in real-time through my smartphone.

At 44.1 pounds, it’s considerably lighter than lead-acid alternatives while delivering 2560W maximum output. The built-in 100A BMS provides thorough protection against common battery issues, including overcharging and short circuits.

I’m impressed by its expandability—you can connect multiple units in 2S2P configuration for extended trips. The M8 terminals guarantee universal compatibility with most trolling motor setups.

Best For: Anglers and boating enthusiasts seeking a lightweight, high-capacity power source for trolling motors with real-time monitoring capabilities and extensive safety features.

Pros:

• Bluetooth connectivity allows real-time monitoring of battery status via smartphone app
• Significantly lighter than equivalent lead-acid batteries at 44.1 pounds while delivering 2560W maximum output
• Expandable in 2S2P configuration for increased capacity and supports various applications beyond trolling motors

Cons:

• Premium price point compared to traditional lead-acid alternatives
• Cold weather operation may be limited by low-temperature cut-off protection
• At 44.1 pounds, still requires considerable effort to transport and install in smaller watercraft

Power Queen 12.8V 50Ah LiFePO4 Battery

The Power Queen 12.8V 50Ah LiFePO4 Battery stands out as the lightweight powerhouse ideal for boaters who need extended time on the water. At just 11.57 pounds, it’s one-third the weight of comparable lead-acid batteries while offering 100% usable capacity.

For trolling motor applications, you’ll appreciate its ability to maintain voltage above 13V under load. Two of these batteries in series create a perfect 24V system for your 55lb thrust motor, with 4,000+ cycle longevity ensuring years of reliable use.

While not suitable as a starting battery, it excels for continuous trolling power, backed by a 10-year warranty and UL2271 certification for safety.

Best For: Boaters and RV owners seeking a lightweight, long-lasting battery for trolling motors, fish finders, and off-grid power systems who want to upgrade from traditional lead-acid batteries.

Pros:

• Extremely lightweight at 11.57 pounds (1/3 the weight of comparable lead-acid batteries) with 100% usable capacity
• Impressive 4,000+ cycle lifespan with a 10-year warranty, vastly outlasting traditional lead-acid alternatives
• Versatile connection options allowing up to 4 batteries in series (48V) or parallel (200Ah) with quick 2-hour charging time

Cons:

• Not suitable as a starting battery for engines requiring high cranking amps
• Higher upfront cost compared to traditional lead-acid batteries despite better long-term value
• Occasional quality control issues with some units arriving dead, requiring replacement through customer service

Newport NV-Series Thrust Saltwater Electric Trolling Motor

When you’re spending your day on saltwater with the Newport NV-Series Thrust Saltwater Electric Trolling Motor, you’ll need a battery that can match its impressive capabilities. This 12V powerhouse delivers 55lb of thrust through its 30-inch shaft and 3-blade propeller.

With 8 speeds (5 forward, 3 reverse) and a top speed of 4mph, the Newport draws up to 52 amps at maximum power. I recommend a 12V deep cycle battery with at least 50Ah capacity – either lead-acid or lithium. The motor’s 5-LED battery meter helps monitor power, though some users find it slightly inaccurate.

At 23.2 pounds, this quiet performer is perfect for trolling and cruising.

Best For: Saltwater anglers and recreational boaters seeking a reliable, powerful trolling motor for small to medium-sized boats who need good maneuverability and quiet operation in various water conditions.

Pros:

• Powerful 55lb thrust with 8 speeds (5 forward, 3 reverse) provides excellent maneuverability and performance against winds and currents
• Saltwater-ready design with corrosion resistance and included 50Amp circuit breaker for protection
• Adjustable mount angle, height, and direction with 6-inch telescoping tiller handle for comfortable operation

Cons:

• Battery meter has been reported as inaccurate by some users
• Produces noticeable vibration and increased noise at higher speeds
• Relatively high power consumption requiring a substantial battery (50Ah minimum recommended) for extended use

Factors to Consider When Choosing a Battery for 55LB Thrust Trolling Motor

When selecting a battery for your 55LB thrust trolling motor, I’ll help you navigate the critical factors that impact your fishing experience. You’ll need to weigh amp-hour capacity against battery chemistry options like lead-acid versus lithium, while considering the practical limitations of weight, runtime at various speeds, and charging requirements. I’ve found that matching these considerations to your specific boating habits guarantees you won’t be stranded with a depleted battery when that trophy fish appears.

Amp-Hour Capacity Requirements

Understanding amp-hour capacity requirements stands as the cornerstone of selecting an appropriate battery for your 55lb thrust trolling motor. Your motor’s runtime directly depends on this specification – higher capacity equals longer operation time.

For a 55lb thrust motor drawing 40-52 amps, I recommend a minimum capacity of 50-85Ah. This will support typical runtimes of 1.5 to 7.3 hours, depending on your speed settings. At maximum thrust, you’ll get about 1.5 hours, while at lower speeds, you could enjoy over 7 hours on the water.

Remember that environmental factors and motor efficiency affect performance too. I suggest selecting a capacity that exceeds your motor’s average amp draw, particularly if you’re planning extended trips. Deep cycle batteries are ideal as they’re designed for the repeated discharge cycles your trolling motor demands.

Battery Chemistry Comparison

Why should you care about battery chemistry when powering your 55lb thrust trolling motor? It dramatically affects performance, weight, and longevity.

LiFePO4 batteries offer impressive advantages over traditional lead-acid options. I’ve found they deliver 3000-8000 deep cycles at 100% discharge compared to lead-acid’s mere 300-500 cycles at 50% discharge. This translates to years of additional service.

Weight is another important factor. LiFePO4 batteries weigh just one-third of equivalent lead-acid batteries, making your boat considerably lighter. They’re also more efficient, converting over 95% of energy compared to lead-acid’s 80-90%.

For consistent performance, LiFePO4 maintains stable voltage throughout discharge, while lead-acid voltage drops under load, affecting motor speed. If you need shock resistance in rough waters, AGM lead-acid batteries offer better durability than flooded types.

Weight and Size Limitations

Battery chemistry is just one piece of the puzzle—the physical dimensions of your power source matter tremendously. When selecting a battery for your 55lb thrust trolling motor, I’ve found that weight can greatly impact your boat’s performance and your overall experience.

Batteries for these motors typically weigh between 11 and 57 pounds, with sizes ranging from compact 6.5 x 6.6 x 6.8-inch units to bulkier 14.4 x 7.4 x 10.7-inch models. I recommend lighter options (under 25 pounds) if you frequently handle the battery yourself or have limited space.

Remember that heavier batteries exceeding 30 pounds often require additional mounting hardware to prevent shifting during operation. Always measure your available storage space and consider how the battery’s weight will affect your boat’s balance and maneuverability on the water.

Runtime at Different Speeds

How long will your 55lb thrust trolling motor run before you’re stranded? It depends entirely on your speed settings.

At low speeds, I’ve found you can expect about 7 hours of runtime from a quality deep cycle battery. This is where you’ll get maximum efficiency for a day on the water. Bump up to medium speeds, and you’ll see that drop to 4-5 hours as power demands increase.

If you’re running at full throttle, prepare for just 1-2 hours before needing a recharge. That’s because higher speeds dramatically increase amperage draw, depleting your battery much faster.

I always recommend monitoring your speed carefully. The difference between crawling and cruising can mean several extra hours on the water from the same charge.

Charging Time Considerations

When selecting a battery for your 55lb thrust trolling motor, charging time becomes a critical factor that many anglers overlook. I’ve found that charging speed largely depends on your charger’s amperage rating and battery capacity.

A typical 50Ah battery takes about 5 hours to fully charge with a 10A charger, but you can cut this down to just 2 hours using a 25A charger. For maximum efficiency, I recommend investing in a charger that matches your battery’s maximum continuous charge rate – some can handle up to 50A.

I’ve learned to avoid partial charging with basic 2-stage chargers as this can reduce battery life. Instead, look for batteries with built-in management systems that optimize the charging process, ensuring you’re back on the water faster while preserving your battery’s longevity.

Price vs. Performance Value

Why do so many anglers fixate on initial purchase price when the true cost of a trolling motor battery extends far beyond the register? I’ve found that higher-capacity options justify their premium by extending run times from mere hours to full days on the water.

I recommend considering cycle life as a critical value metric. Batteries exceeding 4,000 deep cycles dramatically outperform 300-500 cycle alternatives in long-term value, despite higher upfront costs.

Weight matters too—lighter batteries that improve boat handling can be worth every extra dollar for frequent users. Look for options offering greater depth of discharge (up to 100% usable capacity) to maximize your investment.

Don’t overlook durability factors. Batteries that maintain consistent voltage under challenging conditions while resisting shocks may cost more initially but save substantially through reduced downtime and replacements.

Conclusion

I’ve found that choosing the right battery for your 55lb thrust trolling motor doesn’t have to be as difficult as traversing the Labyrinth. By considering capacity, weight, and runtime, you’ll find your Excalibur – whether it’s the robust VMAX AGM or lightweight LiTime lithium option. Like Odysseus returning home, you’ll enjoy longer journeys with the perfect power source guiding your vessel across the waters.