How To Charge Trolling Motor Battery While On The Water

How to Charge a Trolling Motor Battery While on the Water

Staying on the water longer is a dream for many anglers. But a dead trolling motor battery can quickly turn that dream into a nightmare. Fortunately, there are ways to charge your trolling motor battery while you're still out on the lake, river, or ocean. This guide will explore various methods and offer practical advice to keep your fishing adventure going strong.

Understanding Your Trolling Motor Battery

Before diving into charging methods, understanding your battery type is crucial. Most trolling motors use deep-cycle batteries designed for consistent discharge over time. Knowing the battery's voltage (12V, 24V, etc.) and capacity (amp-hours, Ah) helps determine the appropriate charging method and equipment.

Types of Trolling Motor Batteries

• Flooded Lead-Acid: These are the most common and generally the most affordable. They require regular maintenance, including checking the electrolyte level and adding distilled water as needed.
• AGM (Absorbent Glass Mat): These are maintenance-free and more resistant to vibration and tilting compared to flooded lead-acid. They're generally more expensive.
• Gel Cell: Similar to AGM in terms of maintenance and durability, but often better suited for extreme temperatures.

Charging Options While on the Water

While fully charging a drained battery on the water is often impossible, you can significantly boost its power and extend your fishing time. Here are your best options:

1. Portable Solar Panel Charger

This is arguably the cleanest and easiest option. A portable solar panel charger, specifically designed for 12V or 24V batteries, can provide a slow but steady trickle charge throughout the day. The output will vary depending on sunlight conditions, but it can make a noticeable difference. Remember to secure the solar panel safely to avoid damage or accidental falls.

2. Onboard Battery Charger (with Generator)

If you have a small, portable generator onboard, you can use a standard battery charger to top up your trolling motor battery. This method provides a faster charge than solar, but be mindful of the noise and fuel consumption of the generator. Ensure proper ventilation to avoid carbon monoxide buildup.

3. Using a Second Battery and Parallel Charging

If you have a second, fully charged trolling motor battery, you can connect them in parallel using appropriate jumper cables. This will essentially double your power supply for a short period. However, this will deplete both batteries, so manage your power usage carefully.

4. High-Capacity Power Banks

While not as effective as the other options, a high-capacity power bank can provide a small boost to your trolling motor battery, especially if it's only slightly depleted. This method is ideal for smaller trolling motors with lower power demands.

Important Considerations

• Safety First: Always follow manufacturer's instructions for charging and connecting batteries. Incorrect procedures can lead to damage or even injury.
• Appropriate Charger: Use a charger specifically designed for deep-cycle batteries. Incorrect chargers can damage your battery.
• Weather Conditions: Avoid charging in heavy rain or storms.
• Battery Maintenance: Regular maintenance, including cleaning terminals and checking electrolyte levels (for flooded lead-acid batteries), will maximize your battery's lifespan.

Conclusion

Keeping your trolling motor battery charged on the water doesn't need to be a hassle. With a bit of planning and the right equipment, you can maximize your time on the water and enjoy a more successful fishing trip. Choose the method that best suits your needs and always prioritize safety. Remember, a well-maintained battery is key to a successful fishing experience.