Choosing Best Battery for Your Kayak Trolling Motor

A good battery can make all the difference between a successful day on the water and a frustrating one, whether you're fishing, exploring, or enjoying a day out. The question is, with so many options available on the market, how to choose the best trolling motor battery for your kayak and specific needs?

In this guide, we’ll walk you through everything you need to know to make an informed decision and find the best battery for your kayak trolling motor.

What is A Kayak Trolling Motor?

A kayak trolling motor is a small electric motor that can be mounted on a kayak to provide propulsion. It is typically mounted on the stern of the kayak and provides propulsion for the vessel, assisting with paddling or to allow hands-free operation of the kayak. The motor typically has adjustable speed settings and is powered by batteries. They are often used by anglers for fishing as they allow for easier maneuvering and navigation on the water.

Types of Kayak Trolling Motor Batteries: Lithium vs. Lead-Acid

When it comes to choosing a battery for your kayak trolling motor, there are a few different types to consider. The most common types of batteries used for trolling motors are lead-acid and lithium-ion batteries.

• Lead-Acid Batteries: These are the traditional choice, known for their affordability. However, they are heavy, less efficient, and have a shorter lifespan. It requires more maintenance than lithium battery, and doesn't perform as well over time. If you're an occasional kayaker, a lead-acid battery might suit your need.
• Lithium-Ion Batteries: These are the modern alternative for marine trolling motor. The lithium batteries offer a longer lifespan, lighter weight, and better performance, making them easier to handle and reducing the overall weight of your kayak. They are more expensive upfront but provide more value in the long run due to their durability and efficiency. If you have higher power demands or require superior battery performance, then lithium batteries are the best choice.

Key Factors to Consider When Choosing Kayak Trolling Motor Battery

When choosing a battery for your kayak trolling motor, there are several factors to consider to ensure you find the best option for your specific needs.

1. Voltage

The first consideration when selecting a battery is its voltage, which determines the power output. Kayak trolling motor batteries are available in different voltage ratings, with 12-volt being the most common.

• 12-Volt Batteries: Ideal for powering most kayak trolling motors up to 70lbs thrust, and electronics like fish finders and lights.
• 24-Volt Batteries: Required for larger electric outboard motors and trolling motors up to 100lbs, offering more power for faster speeds and greater torque.
• 36-Volt Batteries: Best for larger kayaks or motors over 100lbs thrust, delivering extended runtime and robust power for demanding conditions.

Before choosing, check the voltage requirements of your trolling motor to ensure compatibility.

2. Amp Hours (Ah)

Amp hours (Ah) represent the battery's capacity or run time. The higher the Ah rating, the longer your battery can power your trolling motor.

• 50 Ah Batteries: Suitable for short trips or light usage.
• 100 Ah Batteries: Ideal for all-day adventures, providing sufficient power to run your motor and other accessories without running out of juice.

If you plan to spend long hours on the water, opting for a 100 Ah battery like the Redodo 12V 100Ah Bluetooth LiFePO4 Battery to ensure you won't have to worry about your battery dying in the middle of your trip. The Bluetooth function allows you to monitor the remaining capacity of the battery in real time.

3. Weight

Since you’ll be using the battery on a kayak, weight is an important factor to consider. A lighter battery makes your kayak easier to maneuver and transport, ensuring better balance and stability on the water. Lithium batteries have an advantage in weight, which are 50% or more lighter than traditional lead-acid batteries. For example, our Redodo 100Ah lithium trolling motor batteries weigh only 22.84lbs, while the same 100Ah lead-acid batteries weigh 60lbs.

4. Size

The size of the battery is also important, as it needs to fit comfortably on your kayak without taking up too much space or interfering with your fishing setup. The battery needs to fit within the designated compartment or storage area in your kayak. You may need to follow standard sizes, such as Group 24 and Group 31 battery. Check the size before purchasing your kayak trolling motor battery to avoid oversized batteries which can be cumbersome to install and may require additional modifications to your kayak’s setup.

Read More: The Full Comparison of Group 24 VS Group 31 Deep Cycle Batteries

What Size Battery for Trolling Motor [Type & Size]

5. Durability

Durability is essential for a kayak trolling motor battery, as it will be exposed to various environmental conditions, including water, salt, and physical impacts. Look for a battery that is designed to withstand the rigors of marine environments, including exposure to water, vibrations, and extreme temperatures. Redodo marine battery series are built with a IP65/IP67 waterproof and dustproof casing to protect the battery in various marine conditions.

6. Safey

Safety is paramount when using a battery in a marine environment. A high-quality battery should come equipped with safety features that protect both the battery and the user. Most advanced trolling motor lithium batteries have equipped with BMS (Battery Management System) to ensures that the battery operates safely under various conditions and extends its overall lifespan. The BMS of Redodo trolling motor batteries provide 20+ protections with enhanced resistance to moisture, dust, and salt spray for reliable performance in humid environments.

7. Charging Time

Charging time is a practical consideration, especially if you frequently use your kayak and need quick turnarounds between trips. Consider how long it takes to fully charge the battery, as well as whether it can be recharged quickly between fishing trips. Lithium-ion batteries generally charge faster than lead-acid batteries. The Redodo LiFePO4 batteries support full charging in 2-5 hours, allowing you to spend less time waiting and more time on the water.

Best Battery for Kayak Trolling Motor

Now that you understand the different types of batteries and the important factors to consider, let’s take a look at some of the best battery options for kayak trolling motors.

1. Redodo 12V 100Ah Mini LiFePO4 Battery

If you’re looking for a lightweight and high-performance option, the Redodo 12V 100Ah Mini LiFePO4 Battery is worth considering. It has a 100Ah capacity and is designed to provide long-lasting power without the need for maintenance. It weighs only 19.84 lbs, which is 69% lighter than other 100Ah lead-acid batteries. The lightweight size makes it easier to carry, install, and reduces the overall load on your kayak, improving your on-water experience.

2. Redodo 12V 100Ah Group 31 Bluetooth LiFePO4 Battery

If you’re an avid kayaker bass fishing, or keen on water adventures, then you may consider the Redodo Group 31 Bluetooth Lithium Battery for your kayak trolling motor. The battery provides reliable and consistent power output, ensuring your trolling motor operates at its best throughout your trip. With the smart Bluetooth features, you can learn the remaining capacity and cycles of the battery in real-time. The BMS offers 20+ protection likes overcharge, over discharge, short circuit, and low-temp cutoff protection, making it a top choice for serious anglers.

3. Redodo 12V 50Ah Bluetooth Trolling Motor LiFePO4 Battery

For beginner kayakers or casual water enthusiasts, this 12V 50Ah trolling motor battery is an affordable option to consider. It lightweight at 11.27 lbs, packing the same energy as a 12V 100Ah lead-acid battery, enhancing speed and efficiency on your cruise. It also comes with practical Bluetooth monitoring and BMS protection features, ensuring battery safety and stability while extending its lifespan.

What Size Battery for Kayak Trolling Motor?

The size of the battery you need for a kayak trolling motor largely depends on the motor's thrust level and how long you plan to use it. For smaller trolling motors with 30 to 55 pounds of thrust, a 12V battery with a capacity of 50Ah to 100Ah is typically sufficient. A 50Ah battery is suitable for shorter trips or light use, providing a few hours of runtime. However, if you plan to be out on the water all day or need extra power for other accessories like fish finders, a 100Ah battery offers longer runtime and more consistent power. Additionally, consider the battery's physical size and weight to ensure it fits your kayak and doesn't overly burden it.

Can I Use a Normal Car Battery for Kayak Trolling Motor?

Using a normal car battery for a kayak trolling motor is not advisable. Car batteries are designed for short bursts of high power to start engines, not for the continuous, steady power discharge that trolling motors require. This type of use can quickly drain a car battery and significantly reduce its lifespan. Moreover, car batteries are not built to withstand deep discharges and may fail if regularly used in this manner. For kayak trolling motors, deep-cycle marine batteries or lithium batteries are better suited as they are designed to provide consistent power over extended periods, ensuring reliable performance and longevity.

Conclusion

Choosing the best battery for your kayak trolling motor requires careful consideration likes voltage, amp hours, battery type, size, weight, durability and more. Compared with traditional lead-acid batteries, lithium batteries have more advantages in these considerations.

Redodo marine trolling motor batteries excel in all these areas, offering a powerful, reliable, and long-lasting solution that enhances your kayaking adventures. Whether you’re navigating calm lakes or challenging rivers, the lithium batteries designed to meet your needs and keep you powered throughout your journey.

Ready to upgrade your kayaking experience? Explore the Redodo lithium marine batteries and discover the difference it can make. Subscribe to newsletter for the latest updates and offers!