5 Best Batteries for Trolling Motors Reviewed for 2025

When I first started seriously using a trolling motor, I quickly learned that the battery makes all the difference. There’s nothing worse than running out of juice miles from the ramp or having your motor sputter when you’re trying to hold position against a current. I’ve spent countless hours on the water, experimenting with different setups, and I know firsthand that choosing the best battery for your trolling motor is crucial for a successful day of fishing or a smooth ride. This isn’t just about raw power; it’s about reliability, weight, longevity, and how well it integrates with your entire system. In this guide, I’ll share my insights on some of the top deep cycle and LiFePO4 options available, helping you navigate the choices so you can pick the perfect power source for your marine adventures. We’ll cover everything from cutting-edge lithium to dependable AGM, ensuring you get the most out of your trolling motor battery.

IMAGE	PRODUCT NAME	AMAZON LINK
	Autocessking 12V 100Ah Trolling Motor Bluetooth LiFePO4…	View on Amazon
	Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery,…	View on Amazon
	FLLYROWER 12V Lithium Battery 100AH With BMS and 16500…	View on Amazon
	LiTime 12V 100Ah Trolling Motors Lithium Battery, Group 31…	View on Amazon
	Newport Trolling Motor Smart Battery Box Power Center with…	View on Amazon

Autocessking 12V 100Ah Trolling Motor Bluetooth LiFePO4

This Autocessking 12V 100Ah battery immediately grabs attention with its Lithium Iron Phosphate (LiFePO4) technology and built-in Bluetooth. From my experience, LiFePO4 batteries are a game-changer for trolling motors, offering significantly less weight and a much longer lifespan compared to traditional lead-acid options. This particular model promises 1/3 the weight, 2x the power, and 8x the lifespan, which truly translates to less back strain when loading your boat and more years of reliable service. The continuous 120A discharge current is more than enough for most trolling motors, ensuring consistent power even under heavy load. The Bluetooth connectivity is a brilliant touch; being able to monitor the battery’s status directly from my phone while on the water provides incredible peace of mind and helps avoid unexpected power loss.

Key features that stand out:
* Lightweight & Compact: Weighs significantly less than comparable lead-acid batteries, easing transport and installation.
* Advanced LiFePO4 Technology: Offers superior cycle life (4000+ deep cycles) and a flat voltage curve for consistent power delivery.
* Built-in Bluetooth Monitoring: Allows real-time tracking of battery status, voltage, and discharge from your smartphone.
* Smart BMS with Auto-Reactivation: Protects against overcharge, discharge, short circuits, and temperature extremes, automatically reactivating after cutoff.
* Wide Temperature Range: Operates reliably in harsh conditions from -4℉ to 140℉.

Pros:
* Extremely long lifespan and cycle count.
* Lightweight design reduces boat weight.
* Consistent power output until fully discharged.
* Bluetooth monitoring adds convenience and safety.
* Robust safety features with advanced BMS.
Cons:
* Higher initial investment compared to lead-acid batteries.

Best for: Anglers and boaters looking for a premium, lightweight, long-lasting power solution with advanced monitoring capabilities for their trolling motor.

Expert Opinion: The Autocessking LiFePO4 is a top-tier choice for those serious about their trolling motor performance. Its combination of longevity, consistent power delivery, and smart features like Bluetooth make it an excellent investment, especially for extended use. The self-activation feature is a big plus for hassle-free use.

Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery

The Newport 12V50Ah Deep Cycle battery is a workhorse, designed with traditional reliability in mind. As an AGM (Absorbed Glass Mat) lead-acid battery, it offers a sealed, maintenance-free design that’s leak-proof, which is a huge benefit in a boat. Weighing in at 30lbs, it’s manageable for a 50Ah battery and adds sturdy, reliable power without being excessively heavy. For those who prefer the proven technology of lead-acid but want something better than a standard flooded battery, this Newport option fits the bill. It’s specifically marketed as trolling motor compatible, and from my experience with similar AGM batteries, they deliver consistent power for smaller to medium-sized motors over a good period.

Key features that stand out:
* Sealed AGM Lead Acid: Maintenance-free, leak-proof design, safer for marine environments.
* Heavy-Duty Marine Construction: Built to withstand the vibrations and demands of boating.
* Trolling Motor Compatible: Designed to provide reliable, sustained power for electric trolling motors.
* Moderate Weight: At 30lbs, it’s reasonably light for an AGM of its capacity, aiding transport.

Pros:
* Reliable and proven AGM technology.
* Sealed and leak-proof, enhancing safety.
* More affordable upfront than LiFePO4 options.
* Specifically designed for marine deep cycle applications.
Cons:
* Heavier and has a shorter lifespan than LiFePO4 batteries.

Best for: Boaters needing a dependable, heavy-duty, and more budget-friendly deep cycle option for smaller trolling motors or shorter trips.

Expert Opinion: For an AGM battery, the Newport 12V50Ah is a solid performer. It provides excellent value and reliability for its class. While it can’t match the weight or cycle life of lithium, its sealed design and marine-specific construction make it a trustworthy choice for many trolling motor setups, especially if you’re not ready to jump to LiFePO4.

FLLYROWER 12V Lithium Battery 100AH With BMS and 16500

The FLLYROWER 12V 100AH Lithium Battery brings more of that fantastic LiFePO4 technology to the table, emphasizing capacity, safety, and performance. As someone who appreciates a reliable power source, a 100Ah LiFePO4 battery is almost always a good choice for larger trolling motors or extended run times. This battery’s core benefit, like others in its class, is the substantial weight reduction and the incredibly flat discharge curve, meaning your trolling motor maintains consistent thrust until the very end. The integrated Battery Management System (BMS) is non-negotiable for lithium batteries, ensuring it’s protected from the common pitfalls like overcharging or deep discharging, which helps extend its already impressive lifespan. It’s built for durability and steady power, letting you focus on fishing, not your battery levels.

Key features that stand out:
* High Capacity (100Ah): Provides ample power for extended trolling motor usage.
* Integrated BMS (Battery Management System): Offers comprehensive protection against common electrical faults and temperature issues.
* LiFePO4 Technology: Ensures a lightweight design, superior cycle life, and a stable voltage output throughout its discharge.
* Maintenance-Free Operation: Requires no watering or specific upkeep, making it hassle-free for marine use.

Pros:
* Excellent energy density and power output.
* Significantly lighter than comparable lead-acid batteries.
* Long cycle life (thousands of cycles) for years of use.
* Robust safety features thanks to the built-in BMS.
Cons:
* The initial cost is higher, requiring a larger upfront investment.

Best for: Anglers seeking a durable, high-performance, and lightweight battery to power larger trolling motors or to ensure long operating times on the water.

Expert Opinion: This FLLYROWER lithium battery offers all the core advantages of LiFePO4: lightweight, long-lasting, and consistent power delivery. The integral BMS is critical for safety and longevity, making it a reliable choice for anyone looking to upgrade their trolling motor power. It’s a solid, no-frills lithium option focused on performance.

LiTime 12V 100Ah Trolling Motors Lithium Battery, Group 31

The LiTime 12V 100Ah Lithium Battery is another strong contender in the LiFePO4 space, specifically tailored for trolling motors. What really stands out here is the focus on smart features and rugged design. The Smart Bluetooth Monitoring allows for instant battery checks, which I find incredibly useful for managing power on the fly. Its Smart Low-Temp Protection is a lifesaver for those of us who brave colder conditions, preventing damage from charging or discharging in freezing temperatures. At a mere 22.2 lbs, this Group 31 battery is incredibly light, significantly reducing boat weight and improving handling – something I always appreciate on smaller vessels. With double the range and a 10-year life compared to lead-acid, this battery is built for serious, long-term use and provides peace of mind with its extensive safety protections and IP65 waterproof rating.

Key features that stand out:
* Smart Bluetooth Monitoring: Connects quickly to your phone for real-time battery status and control.
* Smart Low-Temp Protection: Safely prevents damage by stopping charging/discharging in extreme cold.
* 20+ Safety Protections: Comprehensive safeguarding against various electrical and environmental risks, including IP65 waterproofing.
* Ultra-Lightweight (22.2 lbs): Significantly reduces boat weight for improved performance and handling.
* Extended Range & Lifespan: Offers twice the range of lead-acid and 4000+ deep cycles for a 10-year life.
* Expandable Power: Can be scaled up to 4P4S for larger power needs in various applications.

Pros:
* Extremely lightweight for its capacity.
* Advanced low-temperature protection.
* Excellent safety features and robust build quality.
* Bluetooth monitoring enhances user experience.
* Exceptional longevity and consistent power output.
Cons:
* Requires a lithium-compatible charger for activation/first use.

Best for: Anglers and boaters who need a premium, feature-rich, and extremely lightweight LiFePO4 battery with smart monitoring and cold-weather capabilities for their trolling motor.

Expert Opinion: LiTime has packed a lot of value into this battery. The integrated smart features, especially Bluetooth and low-temp protection, set it apart. Its incredibly light weight and robust safety features make it an outstanding choice for dedicated trolling motor users who demand performance and durability across various conditions.

Newport Trolling Motor Smart Battery Box Power Center with

Okay, let’s be clear upfront: this Newport product isn’t a battery itself, but it’s an essential accessory for any serious trolling motor setup, especially when paired with the fantastic batteries we’ve discussed. Think of it as the brain and brawn for your battery, protecting it and making it incredibly user-friendly. I’ve often seen batteries sitting exposed in boats, risking damage or accidental shorts. This Smart Battery Box solves that. It allows you to safely connect your trolling motor and other accessories without ever opening the box, thanks to its external battery ports. The dual integrated circuit breakers are a lifesaver, protecting your valuable trolling motor and fish finder from electrical spikes. Plus, having a direct USB charger and 12V accessory port means you can charge your phone or power other gear right from the box, which is super convenient on the water.

Key features that stand out:
* External Battery Ports: Safely and easily connect trolling motor and accessories without opening the box.
* Dual Integrated Circuit Breakers: Provides 10 Amp and 60 Amp protection for your motor and other electronics.
* USB Charger & 12V Accessory Port: Offers convenient power for charging devices and running other DC accessories.
* LED Battery Meter: Allows for quick checks of your battery’s charge level.
* Fits Group 24 & 27 Batteries: Compatible with a wide range of common marine battery sizes.
* Non-Slip Rubberized Feet: Keeps the box securely in place, even in choppy conditions.

Pros:
* Provides crucial protection for your trolling motor battery.
* Adds convenient power ports (USB, 12V) for accessories.
* Integrated circuit breakers prevent electrical damage.
* Easy external connections simplify setup.
* LED meter helps monitor battery status.
Cons:
* Does not include the battery itself, requiring a separate purchase.

Best for: Any boater looking to protect their trolling motor battery, simplify connections, and add versatile power options for their electronic devices on the water.

Expert Opinion: While not a battery, this Newport Smart Battery Box is an absolutely crucial piece of kit for anyone using a trolling motor. It transforms an exposed battery into a safe, integrated power hub. The circuit breakers alone make it worth it for protecting your expensive electronics, and the extra power ports are a game-changer for convenience. It’s a highly recommended companion for any of the deep cycle or LiFePO4 batteries listed here.

Helpful Comparison Insights

When looking at the best batteries for trolling motors, it’s clear we’re seeing a shift towards lithium, specifically LiFePO4. The Autocessking and LiTime 100Ah LiFePO4 batteries truly shine in terms of weight savings and longevity. They both offer thousands of deep cycles and a flat voltage curve, meaning your motor gets consistent power from full to empty, which is a huge advantage over lead-acid. The LiTime battery stands out with its low-temperature protection and robust safety features, making it ideal for those who fish in colder climates. The Autocessking also has excellent temperature tolerance and an intelligent BMS with auto-reactivation, which is super handy.

On the other hand, the Newport 12V50Ah Deep Cycle AGM battery offers a more budget-friendly entry point for those who prefer proven, traditional technology. While heavier and with a shorter lifespan than lithium, its sealed, maintenance-free design is a significant upgrade from flooded lead-acid options. It’s a reliable choice for shorter trips or smaller trolling motors where extreme weight savings aren’t the top priority. The FLLYROWER 12V 100AH Lithium battery provides a solid, performance-focused LiFePO4 option, delivering the core benefits of high capacity, lightweight design, and long life without some of the ‘smart’ bells and whistles of the Autocessking or LiTime.

And let’s not forget the Newport Trolling Motor Smart Battery Box. This isn’t a battery, but it’s an indispensable addition to any of these batteries. It solves critical issues of battery protection, easy connectivity, and accessory charging. Pairing a high-quality battery with this box creates a truly optimized and safe power system for your boat. If you’re investing in a new LiFePO4 or even a robust AGM, adding this box is a smart move for safety and convenience.

Final Verdict

Choosing the best batteries for your trolling motor ultimately comes down to your budget, how you use your motor, and your priorities.

• If cutting-edge performance, minimal weight, and maximum longevity are your top priorities, and you don’t mind the higher upfront cost, the LiTime 12V 100Ah or Autocessking 12V 100Ah LiFePO4 batteries are truly exceptional. Their smart features, consistent power, and extended lifespan offer an unparalleled experience on the water.

• For those seeking a solid, reliable LiFePO4 upgrade without all the smart tech, the FLLYROWER 12V 100AH Lithium Battery delivers the core benefits of lightweight design and long-lasting power, making it a fantastic workhorse for consistent performance.

• If you’re on a tighter budget but still need a dependable, heavy-duty option, the Newport 12V50Ah Deep Cycle AGM is a fantastic choice. It’s a proven, sealed solution that will reliably power your motor for years.

• No matter which battery you choose, seriously consider adding the Newport Trolling Motor Smart Battery Box. It’s the unsung hero of this lineup, providing crucial protection, convenient connectivity, and accessory charging that will enhance any trolling motor setup.

Ultimately, investing in a good quality trolling motor battery means more time enjoying the water and less time worrying about power. Make an informed choice, and happy boating!

Comprehensive FAQ Section

Q1: What type of battery is best for a trolling motor?
A1: For modern trolling motors, LiFePO4 (Lithium Iron Phosphate) batteries are generally considered the best due to their lightweight design, significantly longer lifespan, consistent power output, and faster charging capabilities. However, AGM (Absorbed Glass Mat) deep cycle lead-acid batteries are also a very popular and more budget-friendly option, offering reliable power.

Q2: How do I choose the right Ah (Amp-hour) capacity for my trolling motor battery?
A2: The ideal Ah capacity depends on your trolling motor’s thrust rating (e.g., 55lb, 80lb) and how long you plan to use it. A good rule of thumb is that a 100Ah LiFePO4 battery (or a 125-150Ah AGM battery for comparable run time) is suitable for most 50-80lb thrust motors for a full day of typical fishing. Always check your trolling motor’s manual for recommended battery sizes and estimated amp draw.

Q3: Can I use a car battery for my trolling motor?
A3: No, you should never use a car starting battery for a trolling motor. Car batteries are designed to deliver a high burst of power for a short time (to start an engine) and are not meant for deep, sustained discharge. A deep cycle battery is specifically designed to provide a steady current over a long period and withstand repeated deep discharging without damage, which is exactly what a trolling motor needs.

Q4: What’s the difference between LiFePO4 and AGM batteries for trolling motors?
A4: LiFePO4 batteries are much lighter, last 4-8 times longer (more charge cycles), provide consistent voltage until nearly empty, and often charge faster. They have a higher upfront cost. AGM batteries are heavier, have a shorter lifespan (fewer charge cycles), and their voltage tends to drop as they discharge, affecting motor performance. However, they are generally more affordable initially.

Q5: Is it safe to leave my trolling motor battery charging overnight?
A5: It depends on your charger. Most modern marine battery chargers, especially those designed for deep cycle batteries (including LiFePO4), have smart charging features that prevent overcharging and switch to a maintenance mode once the battery is full. Always use a charger compatible with your battery type (e.g., a lithium-compatible charger for LiFePO4) and refer to its instructions for safe charging practices.

Q6: Why do I need a battery box for my trolling motor battery?
A6: A battery box, like the Newport Smart Battery Box, serves several crucial purposes. It protects your battery from physical damage and the elements, prevents accidental shorts from exposed terminals, and often includes integrated circuit breakers to protect your trolling motor and other electronics from electrical surges. Many also offer convenient external ports and a battery meter, enhancing safety and usability on your boat. It’s a highly recommended accessory for any trolling motor battery.