Trolling Motor Battery

Trolling Motor Battery

Trolling Motor Battery
Trolling Motor Battery

When powering your trolling motor, choosing the correct battery is critical. Trolling motor batteries are the lifeblood of your fishing adventure, providing the energy needed to quietly and efficiently navigate the waters. In this beginner’s guide, we’ll break down the complexities of trolling motor batteries into simple terms, helping you make an informed choice for your next fishing trip.

The Heart of Your Trolling Motor Setup

Trolling Motor Battery
Trolling Motor Battery

Trolling motors have revolutionized fishing by offering a quiet and efficient propulsion. These motors rely on batteries as their power source, and the type of battery you choose can significantly impact your experience on the water.

Types of Trolling Motor Batteries

Trolling Motor BatteryBefore diving into the nitty-gritty details, let’s start with the basics. Several types of batteries are commonly used for trolling motors, each with advantages and drawbacks. Understanding these options is the first step in making the right choice.

Deep Cycle Batteries Explained

Deep cycle batteries are the workhorses of trolling motor power sources. They are specially designed to handle the repeated deep discharges and recharges that trolling motors demand. This makes them an excellent choice for anglers who spend long hours on the water, as deep-cycle batteries can provide a consistent and reliable power source throughout the day.

Dual-Purpose Batteries – Versatility at Its Best

Trolling Motor Battery

If you’re looking for versatility, dual-purpose batteries are worth considering. These batteries strike a balance between providing starting power (similar to a car battery) and deep cycling capabilities. While they may not excel in one specific area, they are an excellent all-around option for those who want a battery that can handle various applications.

AGM Batteries: Maintenance-Free Power

Trolling Motor Battery

 Absorbent Glass Mat (AGM) batteries offer a hassle-free power solution. They are sealed and maintenance-free, meaning you won’t have to worry about checking water levels or dealing with acid spills. AGM batteries provide dependable power for trolling motors, and their durable construction can withstand the rigors of marine use.

Battery Voltage and Capacity

Trolling Motor Battery

Understanding battery voltage and capacity is crucial in selecting the right battery for your trolling motor. Let’s break down these terms in simple words:


Voltage is the electrical pressure that powers your trolling motor. Trolling motors typically come in 12V, 24V, or 36V options, and your chosen voltage will impact the motor’s speed and thrust.  


Battery capacity is the amount of energy a battery can store. It’s typically measured in ampere-hours (Ah) and determines how long your trolling motor can run before recharging.

Voltage Options: 12V, 24V, or 36V

Now that we’ve covered voltage let’s explore the different voltage options available for trolling motor batteries:


 A 12V battery is the most common choice for small to medium-sized trolling motors. It provides adequate power for most fishing situations and is relatively easy to handle.


Anglers with larger boats or requiring more thrust often opt for a 24V system. This setup connects two 12V batteries in series, doubling the voltage for increased power and efficiency.


A 36V setup is a way for those seeking maximum thrust and speed. It combines three 12V batteries in series to deliver the highest power level for demanding conditions.

Calculating Battery Capacity Needs

Trolling Motor Battery

Determining the right battery capacity for your trolling motor is crucial to avoid running out of power during your fishing trip. To calculate your needs, consider the following factors:

  1. The thrust rating of your trolling motor
  2. The speed settings you plan to use
  3. The duration of your fishing trips
  4. Any additional electrical accessories you’ll be using

Battery Maintenance Tips

Trolling Motor Battery

Proper maintenance can significantly extend the life of your trolling motor battery. Here are some simple tips to ensure your battery serves you well for years to come:

  1. Charge your battery after each use to maintain its capacity.
  2. Store your battery in a cool, dry place away from direct sunlight.
  3. Check the water levels (if applicable) and top off with distilled water as needed.
  4. Handle your battery with care to prevent damage.

Budget-Friendly Battery Options

You don’t have to break the bank to get a reliable trolling motor battery. Several budget-friendly options provide excellent performance without sacrificing quality. Look for batteries from reputable brands that balance affordability and functionality well.


Trolling Motor Battery

In conclusion, selecting the right trolling motor battery is crucial for a successful and enjoyable fishing experience. By understanding the different types of batteries, voltage options, and capacity needs, you can make an informed decision that suits your specific requirements. Remember that proper maintenance and careful budget consideration can help you get the most out of your trolling motor battery. So, gear up, hit the water, and confidently enjoy your next fishing adventure!


Trolling Motor Battery

Q1. How do I determine the right battery voltage for my trolling motor?

The choice of battery voltage depends on your trolling motor’s requirements. 12V is suitable for most small to medium trolling motors, while larger motors may require 24V or 36V setups for increased power and efficiency. Consult your trolling motor’s manual or manufacturer for the recommended voltage.

Q2. What is the lifespan of a trolling motor battery?

The lifespan of a trolling motor battery can vary based on factors like usage, maintenance, and battery type. On average, deep cycle batteries can last 2-5 years, while AGM batteries tend to have a longer lifespan, often reaching 4-7 years with proper care.

Q3. How should I store my trolling motor battery during the off-season?

To preserve your battery during the off-season:

  1. Store it in a cool, dry place away from direct sunlight.
  2. Ensure it’s fully charged before storing, and periodically recharge it to prevent self-discharge.
  3. Check water levels (if applicable) and maintain them as needed.

Q4. Can I use a regular battery charger for my trolling motor battery?

A charger specifically designed for deep cycle or trolling motor batteries is best. These chargers are optimized to prevent overcharging and maintain the battery’s health. However, if you must use a regular charger, be vigilant to avoid overcharging, which can damage the battery over time.

Q5. What is the difference between deep cycle and regular car batteries?

Deep cycle batteries are designed to provide a steady, continuous power source over an extended period, making them ideal for trolling motors. In contrast, regular car batteries are designed for short bursts of high energy to start a vehicle’s engine. They are unsuitable for deep discharges like those experienced by trolling motor batteries.

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