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How to Maximize the Life of Your Trolling Motor Battery

Redline Battery Supply

Redline Battery Supply is the Space Coast’s leading supplier of new and refurbished batteries for cars, trucks, motorcycles, boats, golf carts, and more! Founded by Carl Rutgerson the team at Redline is focused on educating their customers while providing the best service and pricing possible.

How to Maximize the Life of Your Trolling Motor Battery

Jun 28, 2025

At Redline Battery Supply, we specialize in trolling motor batteries that are built for performance and durability. Still, to get the most out of your battery investment, you need to know how to care for it properly.

Here are some expert tips on how to maximize the life of your trolling motor battery:

1. Select the Perfect Battery for Every Task

Not all batteries are created equal. For trolling motors, deep-cycle batteries are the way to go. They’re designed to deliver a steady amount of power over a long period and handle repeated discharges better than standard starting batteries.

At Redline Battery Supply in Melbourne, FL, we carry a wide range of deep-cycle trolling motor batteries suited for various boat sizes and usage needs.

2. Charge It Properly—Every Time

Proper charging is critical to battery longevity. Always use a high-quality charger designed for your specific battery type. Avoid draining the battery completely before recharging—this can significantly shorten its lifespan.

Tips:

Charge your battery immediately after each use.

Use a smart charger that prevents overcharging.

Monitor voltage levels to ensure healthy charge cycles.

3. Store Batteries Correctly During Off-Season

Florida boaters may be lucky to fish year-round, but during storage or off-season, batteries still need care. Store your trolling motor battery in a cool, dry place, well away from heat sources and direct sunlight.

Quick Storage Checklist:

Fully charge the battery before storing.

Disconnect the battery from the trolling motor.

Check charge level monthly and top off if needed.

4. Perform Regular Maintenance

Routine checks can prevent big problems. Inspect terminals for corrosion and ensure all connections are clean and tight. For flooded lead-acid batteries, maintain water levels with distilled water as needed.

Maintenance Musts:

To clean the terminals, use a mixture of water and baking soda.

Use anti-corrosion gel on terminals.

Check for physical damage or bulging.

5. Match Battery Size to Motor Power

Using an underpowered battery with a high-thrust trolling motor can cause excessive strain and premature battery failure. Make sure your battery has the amp-hour (Ah) capacity to support your motor and average usage time on the water.

At Redline Battery Supply, we can help you match your motor’s specs with the best trolling motor battery for your setup.

6. Avoid Over-Discharging

Consistently running your battery to empty can reduce its life dramatically. Try to keep the battery above 50% charge when possible, and never let it sit for long periods in a discharged state.

7. Monitor Battery Health with a Meter

A battery monitor or voltmeter is a smart investment. It gives you real-time updates on your battery’s charge level and can alert you to potential issues before they become serious.

Trust the Experts at Redline Battery Supply

At Redline Battery Supply in Melbourne, Florida, we’re passionate about helping local boaters get the best performance from their trolling motor batteries. Whether you're upgrading, replacing, or just need tips on maintenance, we’re here to help you keep your battery going strong—trip after trip.

Visit redlinebatterysupply.com or give us a call today at (321) 327-8995 to find the perfect trolling motor battery for your boat. Let’s keep you powered up on the water!

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