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Video what battery to use for trolling motor

Choosing the right battery size for your trolling motor is essential to ensure optimal performance and efficiency on the water. In this comprehensive guide, we will cover all you need to know about choosing the right battery size to meet your boating requirements.

Part 1:Understanding Trolling Motor Batteries

1.1 Types of Trolling Motor Batteries

Trolling motor batteries are crucial components of any electric trolling motor system. They provide the power necessary to propel the boat forward, and selecting the right type of battery can greatly impact your boating experience.

Trolling motor batteries are broadly categorized into three types: lead-acid batteries, AGM batteries, and lithium-ion (LiFePO4) batteries. We will discuss the strengths and weaknesses of each type in detail below.

Lead-Acid Wet Batteries

The most commonly found type of battery used for trolling motors is the lead-acid wet cell battery. These batteries, essentially similar to car batteries, have been on the market for many years. Although certain lead-acid wet cells are optimized for deep cycle marine use, they don’t differ significantly from standard car batteries. While they remain widely available, they are considered outdated in terms of technology, as there are now superior options available.

If you decide to go with a lead-acid wet cell battery for your trolling motor, there are a few precautions to consider before purchasing and installing one. The installation process should be approached with caution and in the proper sequence.

One concern is the potential for spilled acid while filling the cells with distilled water. This can pose a real hazard to yourself, your boat, and the environment. Although these batteries are affordable and functional, their use is generally not recommended, especially for boats, due to this safety issue.

Advantages of Lead Acid Wet Batteries:

  • Affordable
  • Widely available
  • Easy to find replacement parts
  • Can handle shallow discharges

Disadvantages:

  • Require regular maintenance, such as filling with distilled water and cleaning terminals
  • Shorter lifespan compared to other battery types
  • Heavy and bulky

AGM Batteries

AGM batteries have become the most popular choice for marine applications due to their unique design and safety features. Unlike traditional lead acid batteries, AGM batteries are completely enclosed and non-spillable.

The main difference lies in the internal components of these batteries. While lead acid batteries use hydrochloric acid and lead plates, AGM batteries incorporate glass mats and a gel substance to facilitate the chemical reactions that store electrical energy. This construction not only enhances the battery’s performance but also eliminates the risk of leakage, making it a reliable option for various applications, including bass fishing in wet conditions.

The sealed nature of AGM batteries is particularly crucial for maintaining their long-term health and ensuring safe operation. In comparison, even a slight loosening of one of the cell caps in a lead acid battery can result in leakage. This inherent weakness is absent in AGM batteries, making them a trusted choice for consumers seeking a reliable and hassle-free power source.

Advantages:

  • Longer lifespan compared to traditional lead-acid batteries
  • Virtually maintenance-free
  • More resistant to vibration and shock
  • Can handle deep discharges

Disadvantages:

  • More expensive than traditional lead-acid batteries
  • Still heavy

Lithium Batteries

Lithium batteries offer exceptional power and are incredibly lightweight. One of their key advantages is their flat power discharge curve, allowing for maximum power output until the battery is fully depleted. For example, traditional 12V 100Ah lead-acid battery weights 60-70lbs, however, LiTime 12V 100Ah TM LiFePO4 lithium battery weights at only 22 lbs. Additionally, it also has low-temperature protection.

Compared to traditional batteries, which can weigh around six pounds and take up space, lithium batteries are compact and can easily fit into small compartments. They are available in various sizes and amp hour ratings, allowing boat owners to choose the most suitable battery for their vessel.

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For kayak fishing, using a lithium battery is highly recommended. They have minimal impact on the kayak’s performance due to their small size and light weight. Although they tend to be more expensive, they are considered the best choice for most kayak setups. In fact, many top trolling motors for kayaks come equipped with lithium batteries.

Lithium batteries are becoming increasingly popular for trolling motor applications, despite their higher cost.

Advantages:

  • Longer lifespan in contrast to traditional lead-acid batteries.
  • Lightweight and compact
  • Maintenance-free
  • Can handle deep discharges

Disadvantages:

  • Expensive
  • Requires specialized charging equipment
  • May not be compatible with all trolling motors on the market

lifepo4 vs lead acid vs AGM battery

To sum up, the selection of an appropriate trolling motor battery is influenced by various factors such as cost, lifespan, and maintenance requirements. Lead-acid batteries are economical but require frequent upkeep, whereas AGM batteries provide extended lifespan at a higher price point. Lithium-ion batteries are the most advanced option with a high price tag. Being aware of the strengths and limitations of each battery type can help you make an informed decision while selecting the ideal trolling motor battery for your system.

1.2 Factors to consider when choosing a trolling motor battery

When selecting a trolling motor battery, there are crucial factors to consider beyond just the battery types. The battery capacity, measured in ampere-hours (Ah), is one such factor that determines how much energy the battery can store and supply to the motor. Higher capacity batteries offer longer run times but are heavier and more expensive.

Another critical factor is the voltage of the battery, which should match the power needs of the trolling motor. Typically, 12-volt or 24-volt batteries are used for trolling motors, depending on their power requirements. Using the wrong voltage battery can damage the motor or reduce its efficiency.

For trolling motors with up to 55 pounds of thrust, a single 12V battery is sufficient. More powerful motors up to 80 pounds of thrust require two 12V batteries wired in series to provide a total of 24 volts. The most potent trolling motors generating over 80 pounds of thrust usually require three 12V batteries wired in series to provide a total of 36 volts. Learn more about LiFePO4 Lithium Batteries In Series & Parallel.

battery size for trolling motor recommended

It’s worth noting that certain trolling motors are designed to work with specific battery types, so it’s crucial to check the manufacturer’s recommendations before purchasing a battery.

Maintaining your battery is also critical, regardless of its type. For lead-acid batteries, regular maintenance like fluid level checks and terminal cleaning is essential for optimal performance and longevity. AGM batteries require less maintenance but should be periodically checked for charging and storage conditions. Lithium-ion batteries require minimal maintenance but must be charged using a compatible charger to avoid damage.

Selecting the ideal battery for your trolling motor depends on your requirements and budget. It’s vital to consider factors such as capacity, voltage, and compatibility with your motor, as well as the pros and cons of each battery type. Proper maintenance can help ensure that your battery lasts longer and performs at its best.

Part 2: What Size Battery is Suitable for Trolling?

2.1 How Does a Battery Size Affect a Boat’s Performance

Choosing the right size battery for your boat is crucial for optimal performance and safety. The size of the battery directly impacts the boat’s electrical system, engine performance, gas consumption, and overall stability. Using an improper battery size can strain the engine and lead to higher fuel consumption. It can also cause damage to the boat’s electrical components, resulting in appliance failure and potential hazards such as fluid spills, sparks, and overheating.

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[Click Here to Shop 7mm-08 Remington Ammo]What we can do is provide a framework to understand what average conditions might look like, and whether those are reasonably viable for a shot from the average shooter to harvest a black bear in the fewest number of shots possible, i.e., ethically. Let’s dive right in. In the question of “Is the 7mm-08 Remington within the ideal range of suitable calibers for black bear hunting?” our answer is: Yes, the 7mm-08 Remington is A GOOD CHOICE for black bear hunting, under average conditions, from a mid-range distance, with a medium grain expanding bullet, and with correct shot placement.Let’s look at those assumptions a bit closer in the following table. Assumption Value Caliber 7mm-08 Remington Animal Species Black Bear Muzzle Energy 2450 foot-pounds Animal Weight 340 lbs Shot Distance 150 yardsWhat is the average muzzle energy for a 7mm-08 Remington? In this case, we have assumed the average muzzle energy for a 7mm-08 Remington round is approximately 2450 foot-pounds. What is the average weight of an adult male black bear? Here we have leaned conservative by taking the average weight of a male individual of the species, since females generally weigh less and require less stopping power. In this case, the average weight of an adult male black bear is approximately 340 lbs. [Click Here to Shop 7mm-08 Remington Ammo]What is the distance this species is typically hunted from? Distance, of course, plays an important role in the viability of a given caliber in black bear hunting. The kinetic energy of the projectile drops dramatically the further downrange it travels primarily due to energy lost in the form of heat generated by friction against the air itself. This phenonemon is known as drag or air resistance. Thus, a caliber that is effective from 50 yards may not have enough stopping power from 200 yards. With that said, we have assumed the average hunting distance for black bear to be approximately 150 yards. What about the other assumptions? We have three other primary assumptions being made here. First, the average bullet weight is encapsulated in the average muzzle energy for the 7mm-08 Remington. The second important assumption is ‘slightly-suboptimal’ to ‘optimal’ shot placement. That is to say, we assume the black bear being harvested is shot directly or nearly directly in the vitals (heart and/or lungs). The third assumption is that a projectile with appropriate terminal ballistics is being used, which for hunting usually means an expanding bullet.Various calibersA common thread you may encounter in online forums is anecdote after anecdote of large animals being brought down by small caliber bullets, or small animals surviving large caliber bullets. Of course those stories exist, and they are not disputed here. A 22LR cartridge can fell a bull elephant under the right conditions, and a newborn squirrel can survive a 50 BMG round under other specific conditions. Again, the goal of this article is simply to address the question of whether 7mm-08 Remington is within the ideal range of suitable calibers to harvest black bear - and to this question, the response again is yes, the 7mm-08 Remington is A GOOD CHOICE for black bear hunting. [Click Here to Shop 7mm-08 Remington Ammo]This article does not serve as the final say, but simply as a starting point for beginner hunters, as well as a venue for further discussion. Please feel free to agree, disagree, and share stories from your own experience in the comments section below. Disclaimer: the information above is purely for illustrative purposes and should not be taken as permission to use a particular caliber, a statement of the legality or safety of using certain calibers, or legal advice in any way. You must read and understand your own local laws before hunting black bear to know whether your caliber of choice is a legal option.Foundry Outdoors is your trusted home for buying archery, camping, fishing, hunting, shooting sports, and outdoor gear online.We offer cheap ammo and bulk ammo deals on the most popular ammo calibers. We have a variety of deals on Rifle Ammo, Handgun Ammo, Shotgun Ammo & Rimfire Ammo, as well as ammo for target practice, plinking, hunting, or shooting competitions. Our website lists special deals on 9mm Ammo, 10mm Ammo, 45-70 Ammo, 6.5 Creedmoor ammo, 300 Blackout Ammo, 10mm Ammo, 5.56 Ammo, Underwood Ammo, Buffalo Bore Ammo and more special deals on bulk ammo.We offer a 100% Authenticity Guarantee on all products sold on our website. Please email us if you have questions about any of our product listings. Leave a commentComments have to be approved before showing up Your Name * Your Email * Your Comment * Post Comment

An oversized or undersized battery can have detrimental effects on the boat’s performance and battery life. Oversized batteries can place unnecessary strain on the electrical system, leading to potential damage and reduced efficiency. On the other hand, undersized batteries may not provide sufficient power for the boat’s electrical needs, resulting in a shorter run time or complete power failure.

It is important to consult experts or the boat manufacturer to determine the appropriate battery size for your specific boat model. Consider the power requirements of your electrical systems, the desired run time, weight distribution, and your budget when choosing a battery size. Taking these factors into account will ensure that your boat operates efficiently and safely.

2.2 Factors to consider when choosing the right battery size

  1. Boat size and weight: The size and weight of the boat are crucial factors to consider when selecting a trolling motor battery size. Larger boats will require larger batteries with higher amp-hour (Ah) ratings to provide enough power to the trolling motor for longer periods.
  1. Trolling motor thrust: The amount of thrust that the trolling motor generates also affects the battery size needed. The higher the thrust, the more power the motor will require, and the larger the battery will need to be to provide enough power.
  1. Fishing conditions: Wind and currents can impact the amount of power needed to operate the trolling motor. Strong winds or currents will require more power, which means a larger battery will be necessary.

2.3 Battery Size for Trolling Motor

The most common battery group sizes for trolling motors are 24, 27, and 31. However, the appropriate size will depend on the size of your boat, the weight you’re carrying, and the motor’s power requirements.

trolling motor group size

For smaller boats with lighter loads and less powerful motors, a group 24 battery may be sufficient. Group 24 batteries typically have dimensions of around 10 x 6.88 x 9.94 inches and a capacity of around 70-85 Ah. However, LiTime group 24 LiFePO4 battery has the capacity of 100Ah.

litime group 24 lifepo4 battery

For larger boats with heavier loads and more powerful motors, a group 27 or 31 battery may be necessary. Group 27 batteries typically have dimensions of around 12 x 6.75 x 8.88 inches and a capacity of around 90-105 Ah. Group 31 batteries are even larger, with dimensions of around 13 x 6.81 x 9.44 inches and a capacity of around 100-125 Ah. Below is the format of other BCI battery size.

BCI battery size

2.4 Advantages and disadvantages of using larger or smaller batteries

Using a larger battery will provide more power and longer run times for the trolling motor. However, larger batteries are heavier and bulkier, which can affect the boat’s performance and maneuverability.

In contrast, smaller batteries are lighter and easier to handle but may not provide enough power for extended use. Therefore, it’s essential to strike a balance between the battery size and the boat’s weight, thrust, and fishing conditions to ensure optimal performance.

Therefore, it is crucial to find a battery that strikes the right balance between size and performance based on factors such as boat weight, thrust, and fishing conditions. The solution lies in upgrading to a LiFePO4 battery, which offers high energy density and lighter weight.

litime 12v 100ah mini vs lead acid

Part 3: Battery Maintenance and Care Tips

To ensure optimal performance, longevity, and safety of your electric trolling motor system, it is imperative to prioritize the maintenance and care of your trolling motor batteries. Below are some tips and guidelines to help you with this task:

3.1 Charging Techniques:

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It is essential to use a charger that is specifically designed for your battery type to ensure optimal performance and avoid potential damage. Make sure the charger matches the voltage of your battery, if you are not sure, refer the table below. Avoid overcharging it as it may reduce its lifespan or cause damage. Charge the battery after every use and refrain from leaving it in a discharged state for an extended period. Can I charge LiFePO4 battery with a normal charger? Read on to find out!

lithium battery charging voltage

3.2 Battery Storage Tips

Proper storage of your battery is crucial for its longevity and performance. Store the battery in a cool, dry place away from direct sunlight and extreme temperatures.

It is also recommended to disconnect the battery from the trolling motor before storage. If you’re using a flooded lead-acid battery, maintain proper water levels. If storing the battery for an extended period, charge it fully before storage and recharge it periodically.

3.3 Signs of a Failing Battery

It is crucial to keep an eye out for signs of a failing battery to avoid safety hazards and ensure optimal performance. Signs may include difficulty starting the trolling motor, reduced power output, slow or incomplete charging, bulging or deformed battery case, and leaking or corrosion around the terminals. If you notice any of these signs, it may be time to replace your battery or seek professional assistance.

Bonus Tip: Upgrading your trolling motor batteries to LiFePO4 batteries

By upgrading to LiFePO4 batteries for your trolling motor, you can enjoy numerous benefits such as a longer lifespan compared to traditional lead-acid batteries, resulting in less frequent replacements and cost savings. Additionally, LiFePO4 batteries are lightweight and compact, making them easy to handle and store.

They also charge faster than lead-acid batteries, reducing downtime and allowing for more time on the water. Furthermore, with a higher energy density, LiFePO4 batteries deliver more power with less bulk.

Finally, they’re known for their enhanced safety features like a lower risk of thermal runaway and reduced chances of leakage or other hazardous events, which improves the overall convenience and safety of your trolling motor system.

To gain a better understanding of the dissimilarities between LiFePO4 batteries and lead-acid batteries, refer to the latest comprehensive comparison guide titled [Newest] A Complete Comparison Between LiFePO4 Battery and Lead Acid Battery

Choosing The Right LiFePO4 Battery for Your Trolling Motor

Thrust Range

LiFePO4 Battery Capacity

Recommended Battery

30 to 55 pounds

50-100 Ah

LiTime 12V 100Ah TM

Litime 12V 100Ah mini

55 to 80 pounds

100-150 Ah

Litime 12V 200Ah

80 to 100 pounds

150-200 Ah

Litime 12V 300Ah

200 to 300 pounds

200-300 Ah

Litime 12V 400Ah

Conclusion

In conclusion, selecting the appropriate battery size for your trolling motor is crucial to ensure optimal performance and longevity. Using the wrong size can lead to reduced power output, shorter battery life, and potential safety hazards. Therefore, it’s essential to consider factors like the motor’s thrust, boat weight, and usage patterns to determine the right battery size.

As discussed earlier in this article, the best way to choose the correct battery size for your trolling motor is by referring to the manufacturer’s recommendations or consulting with an expert. Additionally, be sure to maintain and care for your battery properly by following the charging, storage, and maintenance tips provided here.

By taking the time to choose the right battery size and caring for it correctly, you can enjoy a more efficient and reliable trolling motor system. So, don’t overlook this critical aspect of your boating experience, and make the right battery choice today! Learn more about new-users benefis from LiTime.

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Ethan Smith is a seasoned marine veteran, professional blogger, witty and edgy writer, and an avid hunter. He spent a great deal of his childhood years around the Apache-Sitgreaves National Forest in Arizona. Watching active hunters practise their craft initiated him into the world of hunting and rubrics of outdoor life. He also honed his writing skills by sharing his outdoor experiences with fellow schoolmates through their high school’s magazine. Further along the way, the US Marine Corps got wind of his excellent combination of skills and sought to put them into good use by employing him as a combat correspondent. He now shares his income from this prestigious job with his wife and one kid. Read more >>