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

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#1

Winner

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
9.9
Chosen by1,299
Capacity (Ah)
Weight
Maintenance

Most important from
2095 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
9.9
Chosen by1,299
Capacity (Ah)
Weight
Maintenance

Most important from
2095 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.
#2

Weize 12V 100Ah TM LiFePO4 Lithium Battery, Built-in Smart BMS, Group 31 Deep Cycle Battery Perfect for Trolling Motor, RV, Solar, Marine, Overland/Van, and Off Grid Applications

Rating
9.8
Battery Type
Weight

Most important from
4805 reviews

Battery Type
The battery lasts significantly longer on a single charge compared to lead-acid batteries, making it ideal for extended fishing trips.
Weight
The battery is lightweight, which is especially beneficial for smaller boats and easier handling.

The Weize 12V 100Ah LiFePO4 Lithium Battery is a high-capacity deep-cycle battery designed for trolling motors and other applications such as RVs, solar systems, and camping. This lithium battery stands out for its longevity, boasting over 2000 cycles at 100% depth of discharge and up to 8000 cycles at 50%. This is significantly longer than typical lead-acid batteries, ensuring cost-effectiveness over time. The built-in Battery Management System (BMS) enhances safety by protecting against overcharge, over-discharge, overcurrent, short circuits, and temperature extremes.

Another valuable feature is its low-temperature cut-off, which ensures the battery performs well in cold conditions. The battery is also lightweight at 26.4 pounds, making it easier to handle and install compared to heavier lead-acid alternatives. However, it is crucial to note that this battery requires a dedicated lithium battery charger and should not be used for starting engines or in golf carts. Additionally, it's not suitable for users who need more than four batteries in series or parallel configurations.

The battery's safety and environmental friendliness are commendable, with no risk of thermal runaway or toxic emissions. For customer service, Weize offers a 10-year guarantee, but returns must be handled directly through the seller rather than Amazon. This battery is ideal for those looking for a reliable, long-lasting power source for their trolling motors and other similar applications.

Rating
9.8
Battery Type
Weight

Most important from
4805 reviews

Battery Type
The battery lasts significantly longer on a single charge compared to lead-acid batteries, making it ideal for extended fishing trips.
Weight
The battery is lightweight, which is especially beneficial for smaller boats and easier handling.
#3

OPTIMA Batteries High Performance D34M BlueTop Dual Purpose Deep Cycle and Starting Sealed AGM Boat and RV Battery, 750 CCA, Dual Terminal, Maintenance Free, Versitile Mounting

Rating
9.7
Battery Type
Maintenance

Most important from
1441 reviews

Battery Type
AGM batteries provide full power until they are dead, which is a positive thing, but just know that when your battery loses its charge you have no notice.
Maintenance
Optima batteries are top of the line and the difference in power and run time increase with these batteries is amazing.

The OPTIMA D34M BlueTop battery is a solid choice for anyone looking for a reliable deep-cycle battery to power their trolling motor. One of its main strengths is its dual-purpose functionality, making it suitable for both deep cycling and starting applications. This versatility can save you from needing multiple batteries. With a capacity of 55 Ah and 750 Cold Cranking Amps, it delivers adequate power for most boating needs, while its reserve capacity of 120 minutes ensures that you have consistent performance even during prolonged use.

Another noteworthy feature is the SpiralCell Technology that uses 99.99% pure lead, allowing it to outperform traditional flat-plate batteries. This technology provides optimal starting power, even in less-than-ideal weather conditions. Additionally, the battery is designed to be maintenance-free, which adds a level of convenience for users who don’t want to deal with regular upkeep.

The battery's construction makes it 15 times more resistant to vibrations compared to standard flooded batteries, enhancing its durability—an important factor for marine applications. The battery also boasts a longer life, potentially lasting up to three times longer than regular flooded batteries. However, at 43.5 pounds, it may be heavier than other options, which could be a concern for some boaters looking for lightweight solutions.

Rating
9.7
Battery Type
Maintenance

Most important from
1441 reviews

Battery Type
AGM batteries provide full power until they are dead, which is a positive thing, but just know that when your battery loses its charge you have no notice.
Maintenance
Optima batteries are top of the line and the difference in power and run time increase with these batteries is amazing.

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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