Ever feel like your trolling motor just quits when you’re about to land that prize catch? It’s frustrating when your trusty 45 lb thrust trolling motor suddenly dies on you, leaving you stranded or missing out on the perfect fishing spot. Choosing the right battery can make all the difference between a great day on the water and a disappointing one.
Many anglers face this challenge. You want a battery that lasts long enough for a full day of fishing, has enough power to keep your motor running strong, and won’t break the bank. It’s tough to know which battery type is best, how much capacity you really need, and what features are important. This confusion can lead to buying the wrong battery, which means wasted money and more fishing days cut short.
But don’t worry! This blog post is here to help. We’ll break down everything you need to know about selecting the perfect battery for your 45 lb thrust trolling motor. You’ll learn about the different battery types, what “amp-hours” actually mean for your fishing trips, and how to get the most out of your power source. Get ready to power up your fishing adventures!
Our Top 5 Battery For 45 Lb Thrust Trolling Motor Recommendations at a Glance
Top 5 Battery For 45 Lb Thrust Trolling Motor Detailed Reviews
1. Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery
Rating: 8.5/10
The Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery is a fantastic choice for anyone who loves spending time on the water. This battery is built tough and designed to keep your boat running smoothly. It’s lightweight, making it easy to handle, and its sealed design means you don’t have to worry about leaks.
What We Like:
- It’s surprisingly lightweight at only 30lbs, which makes it super easy to carry and install on your boat.
- The sealed AGM construction means it’s durable and leak-proof, giving you peace of mind.
- This battery works great with trolling motors, so your fishing trips will have reliable power.
- With 12 volts and 50 amp hours, it offers dependable, long-lasting power for your boat’s needs.
- It’s a powerful rechargeable battery perfect for heavy-duty marine use.
What Could Be Improved:
- While it’s lightweight, some users might prefer even lighter options for very small boats.
- The 50Ah capacity is good, but for very long trips or boats with many electronics, a higher capacity might be needed.
This Newport marine battery is a solid performer that offers great convenience and reliability for your boating adventures. It’s a smart buy for powering your time on the water.
2. Newport NV-Series 46lb Thrust Saltwater Transom Mounted Electric Trolling Motor with LED Battery Indicator & 30″ Shaft
Rating: 8.7/10
The Newport NV-Series 46lb Thrust Saltwater Transom Mounted Electric Trolling Motor is a solid choice for boaters looking for reliable performance. Its 12V electric motor delivers a good amount of power without making a racket, which is great for keeping the fish happy. The durable build means you can run it all day without it getting too hot or loud.
What We Like:
- Efficient Power: The 46lb thrust provides plenty of power for most boats.
- Quiet Operation: It runs quietly, so you won’t scare away the fish.
- Durable Build: It’s made to run all day without overheating.
- User-Friendly Features: Includes a 30-inch shaft, a 5-LED battery indicator, a telescoping tiller handle, and a 3-blade propeller.
- Adjustable Mount: You can easily adjust and lock the mount angle, height, and direction.
- Multiple Speeds: Offers 8 speeds (5 forward, 3 reverse) for precise control.
- Integrated Circuit Breaker: Comes with a 40amp circuit breaker for safety.
What Could Be Improved:
- Battery Not Included: You’ll need to buy a 12V deep cycle battery separately (50ah recommended).
- Top Speed Varies: The exact top speed of 3.5mph can change depending on your boat and water conditions.
This trolling motor offers a good balance of power and quiet operation for a better fishing experience. It’s a dependable option for your saltwater adventures.
3. Minn Kota Endura Max Transom-Mount Electric Trolling Motor
Rating: 8.8/10
The Minn Kota Endura Max Transom-Mount Electric Trolling Motor is a fantastic choice for any angler looking for reliable power and control on the water. This freshwater motor boasts 45 lbs. of thrust and a 36-inch shaft, making it suitable for a variety of boats. Its robust design and user-friendly features ensure a smooth and efficient fishing experience.
What We Like:
- The Lever Lock Bracket is super strong and easy to use. It locks tight and resists damage from the elements.
- You can adjust the Telescoping Tiller to find the most comfortable position for steering. It makes controlling the motor feel natural.
- Digital Maximizer technology lets you fish longer. It uses only the power you need, so your battery lasts up to five times as long.
- The Push-to-Test Battery Meter gives you a quick look at your battery life. You always know how much power you have left.
- The Power Prop is great for cutting through weeds. It helps you get where you need to go without getting stuck.
- The Indestructible Composite Shaft is guaranteed for life. It’s built to last and can handle tough conditions.
- This motor runs cool and quiet. This means it lasts longer and won’t scare away the fish.
What Could Be Improved:
- While the thrust is good for many situations, it might not be enough for larger boats or strong currents.
- The 36-inch shaft is a good length, but some users might prefer a longer option for deeper water.
Overall, the Minn Kota Endura Max is a well-built and powerful trolling motor. It offers excellent battery life and intuitive controls, making it a top pick for freshwater fishing.
4. Newport L-Series 86lb Thrust Transom Mounted Saltwater Electric Trolling Motor w/LED Battery Indicator (40″ Shaft)
Rating: 8.5/10
The Newport L-Series 86lb Thrust Transom Mounted Saltwater Electric Trolling Motor is a powerful and reliable option for any boater. Its robust construction and efficient design make it ideal for navigating both fresh and saltwater environments. Whether you’re fishing or just cruising, this motor offers consistent performance and quiet operation.
What We Like:
- It has 86lbs of thrust, which is great for moving your boat.
- The 40-inch shaft is long enough for most boats.
- It runs quietly, so it won’t scare away fish.
- The 5 LED battery indicator helps you know how much power you have left.
- It has 8 speeds: 5 forward and 3 reverse, giving you good control.
- The 3-blade propeller provides strong torque to get you moving.
- It’s made with strong stainless steel, magnesium, and zinc parts for durability.
- Newport offers a 2-year warranty and good customer service.
What Could Be Improved:
- You need to buy two 12V deep cycle batteries separately.
- The top speed of 4.5mph might be slow for some boaters.
This Newport trolling motor is a solid choice for boaters seeking dependable power. Its thoughtful features and durable build ensure a great experience on the water.
5. Minn Kota PowerDrive Bow-Mount Electric Trolling Motor
Rating: 8.8/10
Take your freshwater fishing to the next level with the Minn Kota PowerDrive Bow-Mount Electric Trolling Motor. This motor offers 45 lbs. of thrust and a 48-inch shaft, making it a powerful and versatile tool for any angler. It’s built to last and designed for ease of use, ensuring you spend more time fishing and less time fiddling with your equipment.
What We Like:
- The Deploy-Assist Lever makes getting your motor in and out of the water simple.
- The Push-to-Test Battery Meter lets you check your battery level with a quick press of a button.
- Digital Maximizer technology helps your battery last up to five times longer, so you can fish all day.
- The Power Prop gives you the extra push needed to handle tough fishing conditions.
- The Indestructible Composite Shaft is guaranteed for life, meaning this motor is built to last.
- It runs cool and quiet, so you won’t scare away the fish.
- The included corded foot pedal offers easy control over speed and steering.
What Could Be Improved:
- The foot pedal is not included with GPS-enabled models, which might be an extra purchase for some users.
Overall, the Minn Kota PowerDrive is a reliable and powerful trolling motor. It’s a smart investment for anglers who want a dependable fishing companion.
The Best Battery for Your 45 lb Thrust Trolling Motor
Are you looking for the best battery to power your 45 lb thrust trolling motor? We’ve got you covered! A good battery makes all the difference for a smooth and enjoyable day on the water. This guide will help you find the perfect power source.
Why Battery Choice Matters
Your trolling motor battery is like the fuel tank for your boat. A weak or incorrect battery can cut your fishing trip short. Choosing the right one means more time fishing and less time worrying about power.
Key Features to Look For
1. Capacity (Amp-Hours – Ah)
This tells you how much energy the battery can store. More amp-hours mean longer runtimes. For a 45 lb thrust motor, aim for at least 75 Ah, but 100 Ah or more is even better for longer days.
2. Voltage
Most 45 lb thrust trolling motors use 12-volt batteries. Make sure the battery you choose is specifically 12V. Using the wrong voltage can damage your motor.
3. Battery Type
There are a few main types:
- Flooded Lead-Acid: These are the most common and affordable. They need regular maintenance, like checking water levels.
- Sealed Lead-Acid (AGM & Gel): These are maintenance-free. AGM batteries are very popular for trolling motors because they handle deep discharges well and are more vibration-resistant. Gel batteries are also good but can be more sensitive to charging methods.
- Lithium-Ion (LiFePO4): These are lighter, last much longer, and charge faster. They are more expensive upfront but can save you money over time.
4. Weight and Size
Consider where you’ll store the battery. Lithium batteries are significantly lighter than lead-acid ones. Make sure the battery will fit in your boat’s battery compartment.
5. Durability and Construction
A well-built battery can withstand bumps and vibrations common on a boat. Look for sturdy casings and reliable terminals.
Important Materials
The materials inside the battery determine its performance.
- Lead-Acid: Uses lead plates and sulfuric acid.
- AGM (Absorbent Glass Mat): Electrolyte is absorbed into fiberglass mats. This makes them spill-proof and vibration-resistant.
- Lithium Iron Phosphate (LiFePO4): Uses lithium, iron, and phosphate. These are known for safety, long life, and stable voltage.
Factors That Improve or Reduce Quality
What Makes a Battery Better?
- Deep Cycle Capability: A battery designed for deep cycles can be discharged and recharged many times without losing much capacity. This is crucial for trolling motors.
- High Cranking Amps (CCA) or Marine Cranking Amps (MCA): While not as critical as for starting engines, a higher CCA/MCA means the battery can deliver a strong burst of power when you first start the motor.
- Brand Reputation: Well-known brands often have better quality control and customer support.
- Warranty: A longer warranty period usually indicates the manufacturer’s confidence in their product.
What Can Lower Quality?
- Overcharging or Undercharging: Using the wrong charger or not charging properly can damage the battery.
- Extreme Temperatures: Very hot or very cold conditions can reduce battery life and performance.
- Shallow Discharges: Regularly discharging the battery only a little bit can sometimes reduce its overall lifespan. Deep cycle batteries are designed to handle deeper discharges.
- Physical Damage: Dropping or mishandling the battery can cause internal damage.
User Experience and Use Cases
Imagine a day of bass fishing. You need your trolling motor to hold your position against a gentle current or wind while you cast. A good battery will let you do this for hours.
- Anglers: Need reliable power for precise boat control while fishing.
- Kayakers and Small Boat Owners: Use trolling motors for easy navigation and positioning.
- Occasional Users: Might prioritize affordability and ease of maintenance.
- Frequent/Serious Anglers: Will benefit from longer runtimes and durability, often opting for AGM or Lithium.
Lithium batteries offer the best user experience with their light weight and long life. Lead-acid batteries are a solid, budget-friendly choice for those who don’t mind a little maintenance.
Frequently Asked Questions (FAQ)
Q: How long will a battery last for a 45 lb thrust trolling motor?
A: This depends on the battery’s amp-hours (Ah) and how much power you use. A 100 Ah battery could power a 45 lb thrust motor at a medium setting for 3-5 hours. Lithium batteries will generally last much longer.
Q: Can I use a car battery for my trolling motor?
A: It’s not recommended. Car batteries are designed for starting engines, not for deep, continuous discharge like trolling motors require. They can be damaged quickly.
Q: How do I charge a trolling motor battery?
A: Use a charger specifically designed for deep-cycle marine batteries. Make sure the charger’s voltage and amperage are appropriate for your battery type (lead-acid or lithium).
Q: What’s the difference between AGM and Gel batteries?
A: Both are sealed lead-acid batteries. AGM batteries use fiberglass mats to absorb the electrolyte and are generally more vibration-resistant and can handle higher discharge rates. Gel batteries use a gelled electrolyte and are very tolerant of deep discharges but can be sensitive to overcharging.
Q: Do I need a special charger for a Lithium (LiFePO4) battery?
A: Yes, you need a charger specifically designed for LiFePO4 batteries. Using a lead-acid charger can damage a lithium battery.
Q: How many batteries do I need for a 45 lb thrust trolling motor?
A: Most 45 lb thrust motors are 12V, so one 12V battery is usually sufficient. If you need significantly longer runtimes, you could consider adding a second 12V battery wired in parallel (positive to positive, negative to negative) to double the amp-hours.
Q: How should I store my trolling motor battery when not in use?
A: Store batteries in a cool, dry place. Lead-acid batteries should be kept at least partially charged. It’s best to charge them fully before storage and then top them off every few months.
Q: How do I maintain a flooded lead-acid battery?
A: You need to check the water levels regularly and add distilled water if they are low. Keep the terminals clean and free of corrosion.
Q: Are Lithium batteries worth the extra cost?
A: For many users, yes. They are lighter, last longer (more charge cycles), charge faster, and maintain a more stable voltage. While the initial cost is higher, they can be more cost-effective over their lifespan.
Q: What does “deep cycle” mean?
A: A deep cycle battery is built to be discharged significantly and then recharged many times. This is exactly what a trolling motor does, unlike a car battery which only needs a short burst of power to start an engine.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
William has over three years of experience in building gazebos. He started AskGazebo.com to assist his clients.