Best Trolling Motor Battery


As an avid angler, I understand just how important it is to have the right equipment to maximize your success on the water. One essential piece of gear many anglers overlook is the battery for their trolling motor. The best trolling motor battery ensures that you have consistent and reliable power throughout your fishing day, which ultimately improves your experience. In this blog post, we'll explore the crucial aspects you should consider while choosing the best trolling motor battery, along with some of the best options in the market.

What to Look for in A Trolling Motor Battery

1. Battery Type

There are three primary types of trolling motor batteries: wet cell (flooded), absorbed glass mat (AGM), and lithium-ion (Li-ion). Wet cell batteries are affordable but require consistent maintenance. AGM batteries provide better performance and require less maintenance, while lithium-ion batteries are expensive but offer the best performance and the longest lifespan.

2. Battery Capacity

Measured in amp-hours (Ah), battery capacity determines how much power the battery can provide over a specified period. The higher the amp-hours, the longer your trolling motor will be able to run. Choose a battery with sufficient capacity to accommodate your fishing needs.

3. Weight and Size

Trolling motor batteries can be heavy, so it's crucial to consider your boat's size and weight limitations. Lightweight batteries can help prevent your boat from being overloaded and allow for easier transportation.

Top Trolling Motor Batteries


This AGM deep-cycle battery offers 35Ah capacity, accommodating most small to medium-sized boats. Its durable design is maintenance-free and can last between 5-8 years under normal usage.

2. Optima Batteries 8016-103 D34M BlueTop

Optima is known for manufacturing superior-quality, high-performance batteries. This AGM BlueTop battery features a 55Ah capacity, making it ideal for larger boats. It also contains pure lead in its construction, consisting of spiral-wound cells for optimal performance and durability.

3. Battle Born LiFePO4 Deep Cycle Battery

With a lightweight design and exceptional performance, this lithium-ion battery is perfect for anglers who want the best of the best. With a 100Ah capacity, you can trust it to provide long-lasting power. Additionally, it boasts a lifespan of up to 10 years, requiring minimal maintenance over time.

4. Universal Power Group 12V 100Ah Solar Wind AGM SLA Battery

This AGM battery offers great value for its price, featuring 100Ah capacity. The rugged and durable design is resistant to shocks and vibrations, making it perfect for fishing in rough waters or off-shore excursions.


Choosing the best trolling motor battery for your needs can significantly improve your fishing experience. By considering the battery type, capacity, and weight, you can make the right choice according to your boat and fishing preferences. The VMAXTANKS VMAX V35-857, Optima Batteries 8016-103 D34M BlueTop, Battle Born LiFePO4 Deep Cycle Battery, and Universal Power Group 12V 100Ah Solar Wind AGM SLA Battery are all excellent options worth considering for your trolling motor. Happy fishing!

What is the best battery for a trolling motor?

Lithium Iron Phosphate batteries, also referred to as LiFePO4 batteries or lithium marine batteries, are the best choice for a trolling motor. These batteries boast the longest battery lifespan of any marine or deep-cycle battery, making them ideal for boaters, anglers, and yachtsmen alike.

How long do LiFePO4 batteries last?

A high-quality LiFePO4 battery has a lifespan of around 2000 charge cycles, which typically translates to roughly 10 years of consistent use. This impressive longevity makes LiFePO4 batteries stand out from traditional Sealed Lead Acid (SLA) and Absorbent Glass Mat (AGM) batteries, which usually last for around 300-500 charge cycles.

Are LiFePO4 batteries worth the investment?

While LiFePO4 batteries initially cost more than conventional SLA or AGM batteries, their longer lifespan and improved performance make them a worthwhile investment for trolling motors. The higher upfront cost is offset by their durability, and users can expect to spend less on battery replacements over time.

How do LiFePO4 batteries perform compared to traditional SLA and AGM batteries?

LiFePO4 batteries offer several advantages over SLA and AGM batteries, including:

  1. Longer lifespan: As mentioned earlier, LiFePO4 batteries last significantly longer than SLA or AGM batteries, with up to 2000 charge cycles.
  2. Faster charging time: LiFePO4 batteries charge more quickly, sometimes in less than half the time it takes to charge an SLA or AGM battery.
  3. Lower self-discharge rate: LiFePO4 batteries have a considerably lower self-discharge rate, meaning they will retain their charge much longer when not in use.
  4. Lighter weight: Because of their lighter weight, LiFePO4 batteries are easier to transport and install, which is especially helpful for trolling motors on smaller vessels.
  5. Higher performance under temperature extremes: LiFePO4 batteries perform better in both extremely cold and hot temperatures, ensuring consistent performance no matter the weather.

Some top LiFePO4 battery manufacturers and recommended models for trolling motors include:

  1. Battle Born Batteries: Known for their high-quality and reliable LiFePO4 batteries, the Battle Born 100 Ah 12V LiFePO4 Deep Cycle Battery is a popular choice for trolling motors.
  2. Relion Batteries: The Relion RB100-HP 100 Ah 12V LiFePO4 Deep Cycle Battery is another excellent option, designed specifically for high-performance trolling motors.
  3. Smart Battery: The SB100 100 Ah 12V LiFePO4 Deep Cycle Battery by Smart Battery is known for its excellent performance, making it a great choice for boating enthusiasts who want a reliable trolling motor battery.

By selecting a high-quality LiFePO4 battery for your trolling motor, you can ensure a longer lifespan and superior performance, helping you make the most out of your time on the water.

Additional Questions

What is the longest lasting battery for a trolling motor?

In my extensive experience with motors and batteries, I’ve found that the battery with the most exceptional lifespan for any trolling motor is arguably the Lithium Iron Phosphate batteries, also known as the LiFePO4 batteries or lithium marine batteries. These powerful batteries showcase an unrivaled lifespan when stacked up against other marine or deep-cycle batteries on the market. As a seasoned boatsman, this is personally the battery I would choose for my trolling motor. The peace of mind that comes with knowing this battery’s longevity is unmatched makes it a top-level choice for any angler, yachtsman, or anyone else who takes to the water in their vessel frequently. Time on the water is precious, and this battery ensures that it won’t be wasted worrying about battery life.

What is the best type of battery for an electric trolling motor?

Throughout my career on the water, I have always suggested that when looking for the optimal battery for an electric trolling motor, you should consider a 12-volt deep cycle marine battery. However, not just any battery will do. You must find one with a bare minimum of a 110 amp hour rating – usually in a Group 27 size or larger. The amp-hour rating is a prime consideration because the higher that rating is, the extended run time your trolling motor will be gifted with. It’s like adding more wind to your sails – that extra power can truly transform your experience on the water.

What is the best battery to use for a Minn Kota trolling motor?

As someone who has tested many batteries with trolling motors, my recommendation for the best battery to use with a Minn Kota trolling motor remains the same as for any other trolling motor. Opt for the trusted 12 volt deep cycle marine battery but ensure it has a 110 amp hour rating at least. Typically, you’ll be looking at a Group 27 size battery. Remember, the greater the amp-hour rating, the longer your run time, ensuring you won’t be cut short during a day out on the water. Compatibility and performance make this selection a win-win for Minn Kota trolling motors.

How long will a 20Ah battery last on a trolling motor?

In the world of trolling motors and batteries, one battery stands out in my mind for how long it lasts—a 12V 20Ah Lithium-Iron Phosphate Deep Cycle Battery. The ExpertPower brand comes to mind here because of its distinctive reputation for longevity. Weighing in at less than 6 pounds, this lightweight, yet powerful battery can deliver an impressive 4 hours of trolling power with a 30lb – 55lb trolling motor. This timeframe may vary based on not just the trolling motor but also on water conditions and how you operate your boat. Nonetheless, this battery is a reliable companion for those prolonged outings on the water.

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