Best Lithium Battery for Trolling Motors


Trolling motors are an essential component of any fishing boat, providing anglers with the ability to maneuver effectively and silently in the water. With the increased demand for trolling motors, there are now various types of batteries available to power them. One of the most efficient and popular options is lithium batteries. In this blog post, we'll explore the benefits of using lithium batteries for trolling motors and provide some tips on finding the best lithium battery for your needs.

Why Choose a Lithium Battery for Your Trolling Motor

There are several reasons why lithium batteries have become the preferred choice for powering trolling motors.

1. Lightweight

Lithium batteries are significantly lighter than traditional lead-acid batteries, making them easier to transport and install. This reduced weight also helps to improve the overall performance of your boat, as it puts less strain on the trolling motor.

2. Longevity

Lithium batteries have a much longer life span compared to traditional lead-acid batteries. They can last up to 3-5 times longer, meaning less frequent replacements are needed, saving you money in the long run. They also maintain a consistent voltage output, providing reliable power to your trolling motor.

3. Faster Charging

Lithium batteries charge faster than lead-acid batteries, allowing you to spend more time on the water and less time charging. This is particularly useful for anglers who need to recharge their trolling motor batteries between fishing trips.

4. Eco-friendly

Lithium batteries have a minimal environmental impact compared to lead-acid batteries, making them a more eco-friendly choice. They also have a high energy density, which means they can store more energy in a smaller space.

What to Look for in a Lithium Battery for Your Trolling Motor

When choosing the best lithium battery for your trolling motor, there are several factors to consider:

1. Capacity

The capacity of a battery is measured in amp-hours (Ah). A higher Ah rating means the battery can store more energy and power your trolling motor for a longer period of time. Ideally, you should look for a battery with a capacity of at least 100Ah to ensure a full day of fishing without the need for recharging.

2. Voltage

Trolling motors are designed to run on either 12V, 24V, or 36V systems. Be sure to select a lithium battery that matches the voltage requirements of your trolling motor.

3. Quality and Safety Features

Look for a lithium battery with a built-in battery management system (BMS) to ensure safe and efficient operation. A good BMS will protect the battery from overcharging, over-discharging, and short-circuiting. It will also help extend the lifespan of the battery.

4. Warranty and Customer Support

Only buy lithium batteries for your trolling motor from reputable manufacturers that offer a solid warranty and excellent customer service. This will give you peace of mind, knowing that you're investing in a quality product that's backed by a reliable company.

Top Recommendations

Here are some of our top picks for the best lithium batteries for trolling motors:

  1. Battle Born LiFePO4 Deep Cycle Battery: This 12V 100Ah battery is lightweight, durable, and backed by a fantastic 10-year warranty. Its built-in BMS provides safety features and ensures a long life span.

  2. Dakota Lithium 12V 100Ah Battery: This battery offers a lightweight design and a fast charging time, making it a great choice for anglers who need to recharge their trolling motor batteries quickly between fishing trips.

  3. ExpertPower 12V Lithium LiFePO4 Deep Cycle Rechargeable Battery: With a capacity of 100Ah, this battery is suitable for a full day of fishing. It offers a built-in BMS for safe operation, as well as a 1-year warranty.


Choosing the best lithium battery for your trolling motor can greatly enhance your fishing experience by providing reliable power, longer run times, and faster recharging. By considering crucial factors such as capacity, voltage, quality, and warranty, you can find the best lithium battery to meet your needs and enjoy many successful fishing expeditions. Happy fishing!

What is the best lithium battery to use with a trolling motor?

The top-performing lithium battery for a trolling motor is the Renogy's REGO 12V 400Ah Lithium Iron Phosphate Battery. Offering a whopping 400Ah battery capacity, this LiFePO4 battery can keep your trolling motor running for days and is designed to last up to 10 years with daily usage.

What should I look for when choosing a lithium battery for my trolling motor?

When searching for the perfect lithium battery for your trolling motor, consider these key factors:

  • Battery capacity (Ah): A higher amp-hour (Ah) capacity will provide longer run times for your trolling motor, allowing you to spend more time on the water.
  • Voltage: Ensure the battery voltage matches your trolling motor's voltage requirement. Most trolling motors require a 12V battery.
  • Weight: Lithium batteries are generally lighter than traditional lead-acid batteries, making them easier to transport and handle. Be sure to choose one with a weight suitable for your needs.
  • Battery type: Opt for a lithium iron phosphate (LiFePO4) battery, as they are safer, more efficient, and have longer lifespans compared to regular lithium-ion batteries.
  • Warranty and lifespan: A good lithium battery should come with a warranty and an expected lifespan of at least 5-10 years.

How long will a lithium battery last on a trolling motor?

The runtime of a lithium battery on a trolling motor depends on the battery capacity and the motor's power draw. To calculate the runtime, divide the battery capacity (Ah) by the motor's amp draw (A). For example, a 100Ah battery used with a trolling motor drawing 10 amps would provide about 10 hours of continuous use. However, keep in mind that factors such as weather conditions and speed settings can impact the actual runtime.

How do I maintain my lithium trolling motor battery?

Lithium trolling motor batteries are low-maintenance, but you should still follow these guidelines to ensure optimal performance and longevity:

  • Charging: Use a lithium-specific charger or one with a lithium setting to ensure proper and safe charging. Regularly charging the battery, even during off-season storage, will help maintain its performance.
  • Storage: Store the battery in a cool, dry place when not in use. It's best to store lithium batteries with a 50-80% charge to prevent long-term damage.
  • Regular check: Inspect the battery terminals periodically for any corrosion or loose connections and clean them if necessary.
  • Temperature control: Avoid using or charging your lithium battery in extreme temperatures, as exposing the battery to excessive heat or cold can negatively impact its lifespan.

Can I use a lithium battery with my existing trolling motor setup?

Yes, you can generally use a lithium battery with your existing trolling motor without any significant changes. Just ensure the battery voltage matches your motor's requirement, and if the motor comes with an integrated battery meter, check its compatibility with lithium batteries. Additionally, make sure to use a lithium-specific charger or a charger with a lithium setting to safely charge your battery.

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