So, you've decided to jump in headfirst. Using a lithium LiFePO4 battery, the best trolling motor battery on the market, to power your motor. Well played! But which lithium trolling motor battery is best? Size, capacity, and quality should all be considered.

Of course, the longevity and efficiency with which your trolling motor functions will also depend on the quality of the lithium battery you use. Naturally, you'd like to do a good job. For this reason, you should always go for a lithium battery that has both high-quality cells and an integrated management system. But we'll get to that in a bit! In the following content, you will find more details about these and other important factors to consider when buying a trolling motor battery.

What kind of battery to run my trolling motor?

Most electric trolling motors can be powered by any deep cycle 12-volt marine battery. However, lithium iron phosphate (LiFePO4) batteries are the best option for prolonged use and durability. Reasons 1–5 are as follows:

l Kowint Lithium LiFePO4 batteries will last for far longer. More time spent fishing equates to longer run times.

l Kowint Lithium batteries are more durable and can go longer between charges. Bringing comfort and increasing value through time.

l When compared to deep cycle lead acid batteries, Kowint Lithium is 60% lighter. Lighter vehicles are easier to control and move faster. Also, the batteries are more convenient to transport for recharging.

l Kowint's lithium iron phosphate can be charged at temperatures ranging from 0 to 50 degrees Celsius and discharged at temperatures from -20 to 55 degrees Fahrenheit, thus it can be used to run both a boat and an ice fishing rig year-round.

l The usage of Kowint Lithium batteries reduces power consumption. A flat voltage curve can be seen in lithium iron phosphate. That means that the battery voltage will hold steady when it is discharged. You wring out every last drop of flavor. When using a deep cycle lead acid battery to power a trolling motor, you can only use half of the battery's capacity before the voltage drops too low to keep the motor running. Kowint Lithium allows you to draw from the full potential of your battery.

Battery Size is important

The effectiveness of your trolling motor will be affected by the size of your boat. You should think about amperage and voltage when searching for lithium trolling motor batteries. The trolling motor's battery capacity should reflect its size. If you want to get the most out of your machine, read the manual or contact the maker for advice.

They should be able to give you a rough sense of what size battery will work best. However, if you need any further assistance, don't hesitate to contact a Kowint battery specialist. If you're looking for a replacement battery for your trolling motor, Kowint has numerous choices for you to consider. A deep cycle marine battery is standard across the board. This means that their output remains constant over a greater time span.

How many batteries is needed to power trolling motors?

It is possible that you will need more than one trolling motor battery in order to run your trolling motor and any other electronics (such as an audio system, lights, GPS, etc.). Many bass anglers first choose our 12V 50Ah or 12V 100Ah battery. You may need more than one lithium marine battery to run more than just your trolling motor. And longer battery life could be desirable, too. Smaller lithium batteries for trolling motors, such as our 12V 30Ah or 12V 50Ah batteries, should do the work when we match them with our kayaks. (And remember, in situations like this, you want the smallest battery weight possible, therefore the benefits of lithium batteries are a must.)

Our trolling motor batteries are Ionic deep cycle lithium and have a similar lifespan (3,000-5,000 partial cycles). So that you know how your deep cycle batteries are doing at all times, they come with Bluetooth technology. Even if we do say so ourselves, it's really useful. You may avoid being stuck on the ocean by checking your battery's health before taking out. You can check the voltage, current, and charge status of your phone using the Ionic App. With the help of ionic lithium, you may extend your time on the water and finally reel in that monster fish.

How long do you want on having your pole submerged?

Take into account how long you hope to use the machinery for. How frequently, if ever, do you use your trolling motor? How quickly do you travel around the lake? Consider these criteria when shopping for a lithium battery to power your trolling motor.

Therefore, there are many factors to consider when trying to calculate motor amperage draw and amperage hour rating. The number of hours your battery can power your trolling motor will vary depending on whether or not you operate it at full throttle. The maximum amp draw of a trolling motor is often specified by the manufacturer. While informative, this is by no means exhaustive. Since you probably don't draw more than 50% thrust most of the time, you may need to do some guesswork.

Therefore, if you have a 12V 120Ah battery and a trolling motor with a maximum amp draw of 30, you will receive about 4 hours of operating time. Here's a simple formula to use:

Amp Hours of your battery

————————————— = hours of run time

Amp draw of your trolling motor

On the other hand, you probably aren't making full use of your trolling motor's power consumption, so you might get a longer run time. The weather is an additional consideration. Your trolling motor's fuel consumption will increase if it has to struggle against the elements. There will be less available minutes under these conditions.

Our Deep Cycle Lithium Batteries can be connected in series or parallel to power larger systems. You can arrange them in whatever array best serves your purposes. For larger trolling motors, we also have 24 volt and 36 volt deep cycle batteries.

Additional Benefits of Using Lithium-Ion Batteries for Trolling Motors

A lithium trolling motor battery, in contrast to standard batteries, may be discharged to zero and recharged. The structure permits risk-free discharging and recharging. A high-tech BMS takes care of overcharging and undercharging so you don't have to worry about it. There must be no damage to the battery's delicate components.

You can keep fishing with the same lithium trolling battery for almost a decade thanks to modern technology. That's a substantial chunk of time without stress. Obviously, this assumes that you're being careful and storing things properly. The good news is that our trolling motor batteries require little in the way of upkeep.

Unlike lead-acid batteries, lithium-ion do not need to be topped off with water. Take more time off to fish without worrying about your battery dying. There is no added liquid or weight to these little ones. A higher initial investment is required for lithium trolling motor batteries. You may spend less time and money on battery replacements in the long term. And then there's the time lost because your battery died. What you pay for is what you get. Having a product that doesn't require repairs or replacement for a decade or more is priceless.

What Size, Duration, and Speed of a Lithium Battery Should You Use for Your Trolling Motor?

You should start by checking the manufacturer's recommended battery size. We have Deep-Cycle Lithium Batteries that can be set up to meet almost any energy requirement. You can count on our lithium trolling motor batteries to power your boat for a very long time.

Get in touch with us if you need help deciding on a lithium battery for your trolling motor. We're here and willing to help whenever you need it! You won't fish the same way again for many moons thanks to our deep-cycle lithium batteries.

How to Choose a right Charger for Your Batteries

There are several options for charging your trolling motor, and the capacity you choose may be affected by your specific setup. The first, and in my opinion still the most frequent, is to have a separate trolling motor battery with a charger that features a 110/120 connector, and to have the starter battery hooked to the outboard alternator. The most cost-effective method of charging a portable trolling motor is with a charger that can be plugged into an electrical outlet when you arrive home or into the lift. The obvious drawback to this technique is that the trolling motor battery will eventually die if it is used frequently and heavily without being recharged. Our On-Board 36V 15A High Precision Lithium Charger is ideal for providing the trolling motor battery with enough energy to fish a multi-day tournament in mild conditions, as 99 percent of customers will have regular access to 110V/120V outlets.

After a day or weekend of fishing, you can simply unplug this charger by plugging it into an extension wire and mounting it inside your boat. To charge your lithium iron phosphate trolling motor battery, this charger converts the 110/120 volts from the outlet on your boat lift or dock. I almost forgot to mention that some of our batteries have cold cranking amps in the thousands—perfect for use as starting batteries. Now, the aforementioned configuration is not your only choice. The ability to charge lithium iron phosphate batteries while using outboard motors for extended periods of time may be desirable or necessary. A Power-Pole CHARGE Marine Power Management Station is an effective tool for this purpose. This is essentially a charger for the various marine batteries you may have. The Power-Pole CHARGE is designed for use with a 36V lithium trolling motor and a 12V starter battery. With this setup, you can safely route the roughly 70 amps coming from your outboard alternator to either your starting battery or your LifePO4 trolling motor battery, or switch between the two as needed. A useful piece of advice is to always use the right tools for the job.

Lithium batteries advantages

When compared to deep-cycle lead-acid batteries, lithium batteries have significant performance advantages.

Let's examine the primary benefits more closely:

Power that lasts longer

When compared to lead-acid batteries of the same rated capacity, lithium batteries can power your trolling motor for nearly twice as long.

You should only discharge a lead-acid battery to about half of its rated capacity (Ah), so you should choose a battery with twice the capacity that you will actually require.

Discharging a battery below 50% on a frequent basis will hasten its deterioration and necessitate an earlier replacement.

Most lithium-ion batteries have a 10-20% SoC (State of Charge) discharge range.

For instance, if you have a 100Ah lithium battery, you can get 80Ah out of it. This is roughly equivalent to the energy stored in a 160Ah lead-acid battery.

Longer Life Span

Quite a while. For this reason, the high cost of entry is justified.

Quality lithium-ion batteries can withstand between 3,000 and 5,000 charge/discharge cycles.

After 3000 cycles, the rated capacity typically drops to between 75% and 80%.

There are 3000 cycles in a year, which is equivalent to 3000 days of fishing. Amazing, right?

If depleted to 50% of their capacity, excellent lead-acid batteries only last 200-300 cycles. However, the battery will be severely harmed if you routinely discharge it to 20% of its capacity, and you may only get 30-50 cycles out of it before it completely dies.

Sulfation-Free Batteries At Last!

Lead sulfate crystals accumulate on lead-acid battery plates, a process known as sulfation. It is the primary cause of lead-acid batteries losing performance and failing whenever they are left without a full charge. Sulfation is to blame for diminished battery performance, shorter run periods, and a shorter lifespan.

Unlike lead-acid batteries, lithium-ion ones don't degrade due to sulfation.

Light weight

The usual lithium battery is 60% lighter and takes up 70% less volume than a marine lead-acid battery.

To speed up and be more agile, you need a lighter boat.

As a result, the batteries are significantly more convenient to transport. If you have to take the boat's batteries out after every trip so they can be recharged, you'll really appreciate this.

Flat Voltage Curve

The voltage of conventional marine batteries gradually decreases as they are used. As a result, there will be less and less power to use. There may be some power left in the battery, but if the voltage drops too low, your trolling motor may stop working.

However, lithium-ion batteries will only experience a voltage decrease of about 3% during discharge.

If the voltage is low, more amperage must be used to power the motor.

That's why, if you're going to utilize lead-acid batteries, you need to make sure your battery wires are adequately sized.

Fast Charging

Lead-acid batteries should be charged at a current level between 10 and 30 percent of their rated capacity. Fast charging a 100 Ah lead-acid battery with more than 30 Amps might damage the battery.

The charging speed of lithium batteries is three to five times that of lead-acid batteries, depending on the size of the battery.

If you plan to charge your trolling motor batteries while you sleep, this is probably not a major concern. However, with rapid charging, you may charge your lithium battery while you're at sea or with a robust outboard alternator or generator throughout the day.

Disadvantages

Lithium batteries are more expensive than lead-acid batteries of the same rated capacity, which is their primary drawback.

Because of their greater depth of drain compared to lead-acid batteries, however, you will need to choose a smaller capacity battery to meet your requirements.

The question of how long they will last is equally important.

Lithium batteries don't need to be replaced for at least three thousand charging and discharging cycles.

Even if you don't use them much, lead-acid batteries need to be replaced every 1-3 years to maintain their functionality and run duration. The reason for this is that lead-acid batteries degrade with age.

Know that frigid conditions are not suitable for charging lithium batteries.

Most people won't have to worry about this because a BMS that is doing its job properly will prevent the battery from being charged when it detects that the temperature is too low.

Lithium Batteries Reviews

Lithium batteries, 12 volt, 100 ah

The size of a Group 27 traditional leisure battery is comparable to that of a 100Ah 12-volt lithium battery.

Since 100Ah lithium batteries can be simply installed, they are the most practical alternative.

The 100A discharge current is far higher than what is required for trolling motors.

SPECIFICATIONS

l Weight: 13.5kg

l Dimensions: 170*326*216mm

l Voltage: 12V

l Capacity: 100Ah

l Type: LiFePO4

Lithium Batteries, 12V, 50Ah

These little lithium batteries work wonderfully in inflatables, canoes, and kayaks.

The most significant drawback of compact lithium batteries is that their maximum current output may be insufficient in some applications.

The maximum amp draw of a Minn Kota Terrova 55 is 50A. This is dangerously close to the limit and may trigger a shutdown of the battery by the BMS (Battery Management System).

Make sure you know how many amps your trolling motor needs to run.

SPECIFICATIONS

l Weight: 8kg

l Dimensions:134*223*177mm

l Voltage: 12V

l Capacity: 50Ah

l Type: LiFePO4

Lithium Batteries, 12V, 200Ah

Heavy boats and those fishing in gusty situations benefit most with 200-ah batteries. This will increase the amp draw of your trolling motor and cut into your fishing time.

The additional 200Ah battery capacity ensures reliable operation for a longer period of time. Lithium batteries benefit from this since they are less likely to be discharged below 20%.

My own preference is to series-connect two 12-volt batteries. This gives you more options for how to charge them. It's more convenient to take around two smaller batteries instead of one bulky one.

SPECIFICATIONS

l Weight: 23kg

l Dimensions: 170*483*240mm

l Voltage: 12V

l Capacity: 200Ah

l Battery Type: LiFePO4

Lithium Batteries, 24 Volt 100ah

Instead of connecting two 12V batteries in line to power a 24V trolling motor, it is more efficient to use a single 24-volt battery.

However, there are more factors to think about:

A larger battery can make it more challenging to locate the optimal charging spot. More options are available with two smaller batteries.

A lithium battery charger that works with 24V batteries is necessary. This may increase the total cost of your system.

SPECIFICATIONS

l Weight: 23kg

l Dimensions: 170*483*240mm

l Voltage: 24V

l Capacity: 100Ah

l Battery Type: LiFePO4