Trolling motor battery systems play a critical role in powering your boat's trolling motor. Choosing the right voltage for your trolling motor is essential for optimal performance and efficiency. In this article, we will examine the different voltage options available (12V, 24V and 36V) and discuss their advantages and disadvantages to help you make an informed decision.

Understanding voltage options

There are 3 main voltage options for trolling motor battery systems: 12V, 24V and 36V. Each option has its own advantages and limitations. Let's take a closer look at each voltage option to understand their suitability for different applications.

12V battery system

A 12V trolling motor battery system is suitable for smaller boats (under 70 pounds of thrust) and less demanding applications. It is a cost-effective option and offers enough power for basic trolling needs. However, it may not provide the same thrust and runtime as higher voltage systems.

Power Queen 12V 100Ah Low Temp LiFePO4 Battery is designed for trolling motors and is a user-focused innovation. Weighing just 22 pounds and offering cold protection, it features advanced technology and materials that enhance its ability to handle increased instantaneous load capacity and improved shock resistance. This reliable and lightweight power source guarantees peak performance even in demanding waters and is aimed at marine enthusiasts looking for a robust and powerful solution.

24V battery system

A 24V trolling motor battery system is ideal for medium sized boats (less than 100 pounds) and offers more power and longer run time compared to a 12V system. It offers a good balance between performance and cost-effectiveness. If you have a medium-sized boat and need more power, a 24V system is a recommended choice.

36V Battery system

A 36V trolling motor battery system is designed for larger boats (< 120 lbs) and heavy-duty applications, providing maximum performance and longer run time. It delivers the highest thrust and is ideal for anglers who require exceptional performance. However, it should be noted that a 36V system comes with higher costs and limited battery options.

How voltage affects trolling motor run time

The voltage directly affects the running time of the trolling motor. Higher voltage systems such as 24V and 36V generally result in longer runtime compared to 12V systems. This is due to the higher voltage, which allows the motor to work more efficiently and use less power to produce the same power. Additionally, higher voltage systems typically utilize larger battery banks, increasing overall energy storage capacity, contributing to longer runtime. Therefore, selecting the correct tension for your trolling motor is crucial to ensure optimal runtime and performance on the water.

Factors to consider when selecting the battery voltage of the trolling mor

When deciding on the voltage of your battery system for your trolling motor, several factors should be considered. Consider the size and weight of your boat, the power needs of your trolling motor, your runtime expectations, and your budget constraints. By evaluating these factors, you can determine the most suitable voltage option for your specific needs.

Advantages of high voltage systems

Higher voltage systems such as 24V and 36V offer several advantages over a 12V system. They provide more power and thrust, allowing you to tackle more demanding conditions more efficiently. Additionally, higher voltage systems offer longer runtime, allowing you to spend more time on the water without worrying about a dead battery. Additionally, these systems are generally more efficient, resulting in less heat generation and improved overall performance.

Limitations of high voltage systems

While higher voltage systems have their advantages, they also come with some limitations. A key consideration is the higher costs associated with these systems. Additionally, the availability of battery options for 24V and 36V systems may be limited. Finally, compatibility issues may arise if you have an older trolling motor that is not designed to operate with higher voltage systems.

Compatibility and installation

Before finalizing your trolling motor battery system, ensure that your trolling motor and chosen voltage option are compatible. Follow the manufacturer's guidelines and consult experts if necessary. Proper installation is critical to ensure optimal performance and safety.

12V batteries in series or dragging a 24V battery? Advantages and disadvantages

Using two 12V batteries connected in series or a single 24V battery each has its advantages and disadvantages.

2 pcsück 12V  Batteries in series


Availability: 12V batteries are widely available, making it easier to find replacements when needed.

Flexibility: Each 12V battery can be used independently in other applications if required.

Cost: In some cases, connecting two 12V batteries may be more cost-effective than purchasing a single 24V battery.


Complexity: Connecting batteries in series requires careful wiring and maintenance to ensure they are balanced and charge/discharge evenly.

Space: Accommodating two batteries and the necessary connectors may require more space in the structure.

1 Stück 24V  Battery:


Simplicity: Using a single 24V battery simplifies setup and reduces the complexity of wiring connections.
Maintenance: A single 24V battery may require less maintenance than two 12V batteries connected in series, reducing the possibility of imbalance problems.


Availability: 24V batteries may be less available compared to 12V batteries, which may make finding replacements more difficult.
Flexibility: Unlike two 12V batteries, you may not have the option to use a single 24V battery for other applications.


Ultimately, the decision depends on factors such as cost, availability, space requirements and the need for flexibility in using the batteries for other purposes.

Trolling Motor Battery System FAQs

  1. What type of battery is best for a trolling motor?

The best type of battery for a trolling motor is a deep cycle marine battery. These batteries are designed to provide consistent power over an extended period of time, which is ideal for trolling motors.

  1. Can I use a car battery for a trolling motor?

Although it is possible in some cases to use a car battery for a trolling motor, it is not the most effective choice. Car batteries are designed to quickly start a car's engine at high power, whereas trolling motors require a constant, extended supply of power, making deep cycle marine batteries a better option.

  1. Can I use a battery system with a higher voltage than recommended for my trolling motor?

In general, it is not advisable to use a battery system with a higher voltage than recommended for your trolling motor. Trolling motors are typically designed to operate at a specific voltage range. Exceeding this range can lead to various problems such as engine damage and safety hazards.

  1. How long can a trolling motor run on a 100Ah battery?

A 100Ah battery is more than enough to power a trolling motor with 55 pounds of thrust all day long.

  1. Do different voltage systems require special chargers?

Yes, chargers are tailored to the battery voltage and a 12V charger cannot be used for a 24V battery, for example. Use a charger labeled for the voltage system.

  1. How long does a 24V trolling motor battery last?

Several variables affect the operating time of a 24V trolling motor battery - including sea conditions, boat size and tidal patterns. Typically, the average run time for a standard vessel equipped with a 24V trolling motor battery (ranging from 16 to 22 feet in length) is about half a day.


Choosing the correct voltage for your trolling motor's battery system is critical to optimal performance on the water. Evaluate your boat's size, power requirements and runtime expectations to determine whether a 12V, 24V or 36V system is best for your needs. Consider the benefits and limitations of each voltage option before making a decision. By making an informed decision, you can increase the performance of your trolling motor and enjoy a smooth boating experience.