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10 Best Deep Cycle Batteries For Trolling Motors 2025 in the United States

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Our Top Picks

#1

Winner

LiTime 12V 100Ah Group 24 Bluetooth LiFePO4 Battery, Deep Cycle Lithium Battery, Built-in 100A BMS with Low-Temp Protection, Max. 15000 Cycles, Perfect for RV, Solar System, Trolling Motors etc.

Rating
10.0
Chosen by1,295
Cycle Life
Weight
Maintenance

Most important from
4019 reviews

Cycle Life
Even after a year of heavy use and hundreds of cycles, the batteries show no noticeable loss in capacity.
Weight
Lightweight and easy to handle, it's significantly more portable compared to traditional lead-acid batteries.
Maintenance
Despite occasional charging below freezing temperatures, the battery maintains its performance without any issues.

The LiTime 12V 100Ah Group 24 Bluetooth LiFePO4 Battery stands out as a robust and efficient deep-cycle battery ideal for trolling motors. It boasts a high capacity of 100Ah and operates at 12V, which is standard for such applications. One of its major strengths is its impressive cycle life, capable of up to 15,000 cycles, significantly outlasting traditional lead-acid batteries. Additionally, it is much lighter, weighing only 21.9 lbs, making it easier to handle and install. The built-in Bluetooth functionality is a modern touch, allowing real-time battery monitoring through a dedicated app, which can be very convenient for users who want to keep an eye on battery performance and health without hassle.

The smart BMS (Battery Management System) ensures safety by protecting against over-charging, over-discharging, over-current, and short-circuits, and includes a low-temperature cut-off feature for safe operation in various environments. Another advantage is its universal fit, conforming to the BCI Group 24 size standard, making it compatible with a wide range of vehicles and applications without requiring significant modifications. However, there are some limitations. The battery is not suitable for use as a starting battery, in golf carts, or jacks, which might limit its versatility for some users. Additionally, to activate the Bluetooth function, an initial charge with a lithium-activation charger or MPPT charger is necessary, which may add a step for users new to this technology.

Despite these minor drawbacks, the LiTime battery's performance, extended cycle life, and advanced features make it a strong contender for anyone looking to upgrade their trolling motor's power source. The 5-year warranty and strong customer support further enhance its appeal.

Rating
10.0
Chosen by1,295
Cycle Life
Weight
Maintenance

Most important from
4019 reviews

Cycle Life
Even after a year of heavy use and hundreds of cycles, the batteries show no noticeable loss in capacity.
Weight
Lightweight and easy to handle, it's significantly more portable compared to traditional lead-acid batteries.
Maintenance
Despite occasional charging below freezing temperatures, the battery maintains its performance without any issues.
#2

LiTime 12V 100Ah TM Low-Temp Protection LiFePO4 Battery Built-in 100A BMS, Group 31 Deep Cycle, Lithium Iron Phosphate Battery Perfect for Trolling Motors, Yacht, Marine, Boat, RV, Home Energy

Rating
10.0
Battery Type
Capacity (Ah)
Weight

Most important from
4019 reviews

Battery Type
Switching from lead-acid to lithium is like night and day, with significant weight reduction and full power throughout discharge.
Capacity (Ah)
The battery stays charged for a long time, perfect for extended fishing trips.
Weight
Switching from lead-acid to lithium is like night and day, with significant weight reduction and full power throughout discharge.
Maintenance
The battery app is excellent for monitoring charge and ensuring everything is working well.

The LiTime 12V 100Ah TM LiFePO4 battery is a solid choice for those seeking a reliable deep-cycle battery for trolling motors, marine use, or even home energy applications. One of its main strengths is the built-in 100A BMS (Battery Management System) which offers robust protection against various issues like overcharging and overheating, making it safe to use even in low temperatures. With a cycle life boasting up to 15,000 cycles at reduced depths of discharge, it significantly outlasts traditional lead-acid batteries, which typically last only a few years. This durability translates into long-term cost savings for users, making it a worthy investment for serious boaters and outdoor enthusiasts.

The battery is designed specifically for harsh marine environments, with extra protection against water and dust. Its compact design also allows for easy installation in tight spaces, which is a plus for boaters. Moreover, the option to expand the system allows for higher capacity builds, accommodating various power needs.

There are a few drawbacks to consider. The battery weighs about 46 pounds, which may be heavier than some users expect, making it a bit cumbersome to handle. Additionally, while the price point is competitive when looking at performance over time, the upfront cost of lithium batteries can be higher than traditional lead-acid options, which might deter budget-conscious buyers.

The battery comes with a 5-year warranty and good customer service, and users should be aware that the technology requires some understanding for optimal use, especially when integrating with existing systems. This battery is best suited for serious trolling motor users, boaters, and those looking for a dependable marine battery with long-lasting performance.

Rating
10.0
Battery Type
Capacity (Ah)
Weight

Most important from
4019 reviews

Battery Type
Switching from lead-acid to lithium is like night and day, with significant weight reduction and full power throughout discharge.
Capacity (Ah)
The battery stays charged for a long time, perfect for extended fishing trips.
Weight
Switching from lead-acid to lithium is like night and day, with significant weight reduction and full power throughout discharge.
Maintenance
The battery app is excellent for monitoring charge and ensuring everything is working well.
#3

Renogy Deep Cycle AGM 12 Volt 100Ah Battery, 3% Self-Discharge Rate, 1100A Max Discharge Current, Safe Charge Appliances for RV, Camping, Cabin, Marine and Off-Grid System, Maintenance-Free

Rating
9.7
Capacity (Ah)
Weight
Maintenance

Most important from
2037 reviews

Capacity (Ah)
Arrived well-packaged and charged up quickly to full capacity.
Weight
Heavy but feels safer compared to lighter batteries with explosion risks.
Maintenance
Holds a great charge and works well, even with solar panel charging.

The Renogy Deep Cycle AGM 12 Volt 100Ah Battery is a robust option for those needing reliable power for trolling motors. It boasts a high capacity of 100Ah and operates at 12 volts, making it suitable for prolonged use. The battery's cycle life is enhanced by its AGM (Absorbent Glass Mat) design, which ensures safe, maintenance-free operation. Weighing approximately 63.9 pounds, it is on the heavier side, which might be a consideration for some users. However, this weight is fairly standard for deep-cycle batteries and reflects its substantial capacity and durable construction.

A notable strength is its low self-discharge rate of just 3%, meaning it retains charge well when not in use, an essential feature for intermittent activities like fishing trips. Additionally, the battery can handle extreme temperatures (-4 to 140°F), offering reliable performance regardless of weather conditions. This makes it especially useful for RVs, cabins, and off-grid systems where environmental control may be limited.

One drawback is the single battery unit, necessitating further purchases for those requiring more power through series or parallel connections. The 1100A max discharge current for 5 seconds is impressive, ensuring it can power a variety of appliances, but might be overkill if you're only using it for a trolling motor. However, its flexibility to support other appliances like fridges or microwaves is a plus for multi-use scenarios. In terms of maintenance, the AGM technology means it’s virtually maintenance-free, which is a significant advantage for those who prefer a hassle-free solution. The Renogy Deep Cycle AGM battery is a reliable and high-performing choice for those needing dependable power for their trolling motors and other applications, though its weight and need for additional units for larger setups may be considerations.

Rating
9.7
Capacity (Ah)
Weight
Maintenance

Most important from
2037 reviews

Capacity (Ah)
Arrived well-packaged and charged up quickly to full capacity.
Weight
Heavy but feels safer compared to lighter batteries with explosion risks.
Maintenance
Holds a great charge and works well, even with solar panel charging.

Buying Guide for the Best Deep Cycle Batteries For Trolling Motors

Choosing the right deep-cycle battery for your trolling motor is crucial for ensuring a reliable and enjoyable boating experience. Deep-cycle batteries are designed to provide a steady amount of current over a long period, making them ideal for trolling motors that require consistent power. When selecting a battery, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specs will help you make an informed decision and get the most out of your battery and trolling motor setup.
Battery TypeDeep-cycle batteries come in different types, including flooded lead-acid, AGM (Absorbent Glass Mat), and lithium-ion. Flooded lead-acid batteries are the most common and affordable but require regular maintenance. AGM batteries are maintenance-free and offer better performance and durability. Lithium-ion batteries are the most advanced, offering the longest lifespan and lightest weight, but they are also the most expensive. Choose a battery type based on your maintenance preference, performance needs, and budget.
Capacity (Ah)Capacity, measured in ampere-hours (Ah), indicates how much energy the battery can store. A higher capacity means the battery can power your trolling motor for a longer period. For light to moderate use, a battery with a capacity of 50-100 Ah may suffice. For more extended use or larger motors, consider batteries with 100-200 Ah or more. Assess your typical usage patterns and choose a capacity that ensures you won't run out of power during your outings.
VoltageMost trolling motors operate on 12V, 24V, or 36V systems. The voltage of your battery must match the voltage requirements of your trolling motor. A 12V system is common for smaller boats and lighter use, while 24V and 36V systems are used for larger boats and more demanding conditions. Check your trolling motor's specifications and select a battery with the appropriate voltage to ensure compatibility and optimal performance.
Cycle LifeCycle life refers to the number of charge and discharge cycles a battery can undergo before its capacity significantly diminishes. A higher cycle life means the battery will last longer. Flooded lead-acid batteries typically have a cycle life of 300-500 cycles, AGM batteries offer around 500-1000 cycles, and lithium-ion batteries can exceed 2000 cycles. Consider how often you use your trolling motor and choose a battery with a cycle life that matches your usage frequency for better longevity.
WeightThe weight of the battery can affect the overall performance and handling of your boat. Heavier batteries, like flooded lead-acid, can add significant weight, which may impact speed and fuel efficiency. AGM batteries are lighter, and lithium-ion batteries are the lightest. If weight is a critical factor for your boat's performance, consider opting for a lighter battery type. Balance the need for capacity and performance with the weight to find the best option for your setup.
MaintenanceDifferent battery types require varying levels of maintenance. Flooded lead-acid batteries need regular checking and topping off with distilled water. AGM and lithium-ion batteries are maintenance-free, making them more convenient for users who prefer minimal upkeep. Consider how much time and effort you are willing to invest in battery maintenance when choosing the right type for your trolling motor.

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