When you set out on a long-term fishing expedition, you need a trolling motor you can rely on. Whether to maintain a good position, fight a minor current, or travel silently along the shore, the best trolling motor is vital for those minute movements that don’t require full engine power.

So, you’re taking the plunge. Diving in and powering your trolling motor with the best trolling motor battery around, a lithium LiFePO4 battery. Good move! But, how do you choose the right lithium trolling motor battery? Of course, you’ll want to think about size, capacity, and quality.

It probably goes without saying, but the quality of your lithium battery will also affect how long and well your trolling motor operates. So of course, you want to get it right. That’s why we always suggest purchasing a lithium battery with top quality battery cells and a built-in battery management system. But more on that later! Keep reading to learn more about these features, as well as other valuable information for choosing the right trolling motor battery.

Best 12V Lithium Battery for Trolling Motor

Best Lithium Trolling Motor Battery 24v

36V Lithium Trolling Motor Battery

What is a Trolling Motor Battery?

Trolling motor battery is specifically considered for a boat trolling motor. Its purpose is to provide a long-term electricity supply to small-scale fisheries. On the contrary, boat-starting batteries are used to start exploding. Marine batteries need to start the engine and provide adequate power to support the machine and the devices connected to the boat. To better understand which trolling motor battery you should choose, it is essential to understand the different types of batteries offered.

What is a deep cycle trolling motor battery?

Most trolling motor batteries are deep cycle trolling motor batteries. The goal is to offer energy for a more extended amount of time while leisurely trolling through fishing locations. Deep cycle trolling motor battery is designed to produce a moderate, uninterrupted discharge of electricity over a long time to keep the motor going.

Owing to the need for constant power supply, one should choose a dual-purpose trolling motor battery or a deep cycle trolling motor battery. Both of these are separate from the starter battery found in car engines. They provide consistent and constant power to keep your engine running longer. Thanks for the availibilty of fully, a dual-purpose battery provides enough power to start and unlock the engine. At the same time, it gives you enough power to keep your divination engine running smoothly. As the name implies, dual purpose batteries can be used for both purposes.

However, deep cycle batteries are somewhat different. They are designed to give you stable power on your trolling motor over time. They will provide special performance when used with a trolling motor. It depends on what you want; you can get the best of both worlds with a dual-purpose engine. If you are looking for a battery that will last a long time in your trolling motor, check for deep cycle trolling motor battery.

What to Look for in the Best Trolling Battery

The best trolling battery combines reliability with the power to withstand multiple charge cycles. It’s one whose draw power is never mitigated by its weight – buckling under pressure and dying on the water. And the right battery lasts for the long haul, delivering consistent performance over the years.

For all those reasons, lithium batteries have become the most popular choice for trolling motors today. But not all lithium batteries are built equally. Here are a few things to know when selecting yours:

Finding a Lithium Battery that Lasts

The first question to answer is, why lithium? Typically, customers are presented with three options when choosing a battery for their trolling motor: wet cell batteries, advanced glass mat (AGM), and lithium. Each of these comes with its advantages and disadvantages:

  • Wet cells are an affordable and time-tested technology, but they require maintenance.
  • AGMs are more powerful and come without maintenance but with a higher price point and much heavier weight.
  • Lithium batteries, in contrast, are lighter and have comparable power to AGMs while being maintenance-free and similarly lightweight next to wet cell batteries.

A lithium battery also delivers long-lasting performance, with some brands claiming to last a decade before needing replacement. This makes them an excellent choice for reliably powering your trolling motor, though it isn’t without cost. Lithium batteries aren’t cheap, but that upfront cost is an investment. One that leads to long-term savings when you rarely need a replacement.

However, it’s important to note that not all trolling motors are compatible with lithium batteries, so be sure to check compatibility before making any purchase.

Battery Size Matters

The size of your trolling motor and the size of the boat it’s paired with matters. When shopping for lithium batteries for trolling motors, you’ll need to consider amperage and voltage. The larger the trolling motor, the higher capacity you’ll need in its battery. For optimal performance, look at your manual or speak to the manufacturer for guidance.

What to Look for in Your Lithium Trolling Battery

The first thing you want to keep in mind is the requirements of your trolling motor. Trolling motors typically have three voltages: 12v, 24v, or 36v. You will either need a battery with the same voltage or multiple batteries that can be linked to meet the motor’s voltage requirement.

If you use two batteries, ensure they are both new – never mix old and new batteries, and never mix different kinds of batteries when linking them into a set.

You’ll also want to keep in mind the max amp-draw of your motor. It should always be less than the max amp-draw of your battery (also referred to as continuous discharge rate). Essentially, your engine has a maximum amount of power that it can demand from a battery, and a battery can only deliver a certain amount of power at a time. If your battery can’t provide enough power because its max amp draw is too low, you won’t get the power you need to run your trolling motor at full strength.Once you know the requirements for your trolling motor, you can narrow your search with primary consideration given to weight, price, and amp-hours.

Amp Hours

Amp-hours (Ah) determine the total use your battery can get out of one charge, though the specific hours and minutes you get depend on the amp-draw of your motor.

For example, if you have a 100 Ah battery and your motor has an amp-draw of 25 amps, you will get about four hours of continuous use at top speed. Generally, if you plan to spend all day fishing, you should have a battery with double the capacity of your motor’s max draw.

So, if your motor draws 25 amps, you should have a 50 Ah battery. If you are more of a half-day motorist, then a battery with the same amp hours as your motor’s max amp draw should be fine.


Weight isn’t going to be too divergent when it comes to lithium batteries, as they are generally much lighter than other batteries. You’ll never be too encumbered, regardless of the brand. Still, some models are more lightweight, and you might be willing to pay more to take on that lighter load.


Cost is always the deciding factor when looking at batteries and can be prohibiting for many purchasers. Lithium batteries are expensive compared to other options. As always, however, the higher the quality, the higher the cost. Factors like increased voltage and amp-hours or decreased weight can up the price of a lithium battery.

The Best Trolling Battery Brings the Best Fishing

These factors of amp-hours, weight, and cost are likely to be your most significant considerations when choosing your lithium trolling battery. The last thing to keep in mind, however, is warranty and lifetime battery life which can vary drastically depending on the brand.

Determining your budget and comparing that to your needs on the water is vital to selecting the best trolling battery for you. Once you decide both, the right trolling battery isn’t far out of reach.

Other Perks Of Going With Lithium

Unlike traditional batteries, a lithium trolling motor battery can drain to zero and charge back up. The design allows for safe draining and charging. Thanks to a sophisticated Battery Management System (BMS) you don’t have to worry about overcharging or undercharging. No ruining of sensitive components that will affect battery performance.

Your new lithium trolling battery can keep you fishing for over a decade with the same battery! That’s a huge handful of worry-free years. Of course, this takes into consideration proper storage and care. But the good news about our trolling motor batteries is that they’re pretty much maintenance free…

No watering your batteries, unlike lead-acid. Enjoy longer fishing trips without battery accidents. These babies are lightweight and liquid-free. Sure, choosing a lithium battery for trolling motors costs a bit more up front. But in the long run, you’re saving yourself time and money in battery replacements. Not to mention downtime due to a drained battery. You get what you pay for. And 10+ maintenance-free and replacement-free years are worth their weight in gold!

What are the Advantages of the Lithium Trolling Motor Battery?

Cost effective

  • Up to 10 years design life, longer lifespan.
  • Backed up by 5 years extended warranty, ensuring you peace of mind.
  • Up to 70% expenditures can be saved in 5 years.

Plug & Use

  • The specially designed mounting holes bring an easy and quick installation.
  • Light weight, easy to maneuver and change directions.
  • Drop-in replacements for lead-acid batteries.
  • Resistant to vibration & shock.

Power your freedom

  • You can fish freely withstanding the gale and waves.
  • Enduring power helps to support spot-lock fishing all day.
  • They are robust that enable a smoothly and steadily stay on the water.
  • Enjoy your time & indulge your interest, value much for your fishing.

Charging on board

  • The batteries can stay on board the equipment for charging.
  • Can be recharged at any time without affecting battery life.
  • Get rid of the risk of battery changing accidents.


  • Bluetooth – monitoring your battery from your mobile phone anytime via Bluetooth connectivity.
  • Built-in equalization circuit, which can realize full time equalization.
  • WiFi connection everywhere (Optional) – No network signals while fishing in the wild? No worries! Our battery has built-in wireless data terminal which can automatically switch to available network operators globally.

Ultra Safe

  • The LiFePO4 batteries possess high thermal and chemical stability.
  • Waterproof & corrosion protection, highly resistant to extreme conditions.
  • Multiple built-in protections, including over charge, over discharge, over heating and short circuit protection, etc.

Zero maintenance

  • No need to endure the acid spills, corrosion, contamination.
  • No regular filling of distilled water.

All-weather batteries

  • Our batteries are suitable for saltwater or freshwater.
  • Work well in cold or high temperatures.
  • With self-heating functions, they can be higher tolerant to cold weather when charging.
  • Help to withstand 15+ mph wind speed.

What are the Disadvantages of the Lithium Trolling Motor Battery?

After reading about all of their benefits, you may believe that lithium trolling motor batteries have no disadvantages, but you would be mistaken.

  • The most prominent drawback of lithium batteries is the high cost. Even the smallest ones could be out of your price range.
  • A specific charger is required for lithium trolling motor battery.
  • The temperature range of lithium batteries is limited(-20~60℃).

Battery Tips

  • Never mix battery types, nor old batteries with new batteries.
  • Charge batteries as soon as possible after each use – leaving batteries in a discharged state will decrease their longevity and performance.
  • Periodically check wet-cell battery fluid levels and top-off as needed Check terminal connectors periodically for signs of corrosion – clean with a paste of baking soda and water.
  • Store batteries in a cool, dry place in the off-season and maintain a trickle charge.


The run time for a trolling motor depends on the reserve capacity of the battery or batteries, the health of the batteries on how hard the motor is run on any given day. Anglers who are not getting a full day’s use out of their batteries should consider replacing them with newer batteries, stronger batteries, or a different overall setup.

Charge your batteries immediately after use, and keep them plugged into the appropriate charger until they are 100 percent charged. Most chargers have a shutoff and a trickle feature that will keep batteries topped off. Also, with wet cell batteries, make sure that water levels are adequate.

Trolling motor batteries used several times a week should last no less than three or four years, and possibly five or six with no loss of charge. Some anglers change them out every two years to be safe. Some of the newer lithium models promise over a decade of use.

Lithium batteries are the newest technology when it comes to trolling motor batteries. Lithium batteries are able to be used with Minn Kota products.

A 100Ah lithium battery will last for 1.85 hours or 1 hour 51 minutes on that trolling motor at full speed.

Will my car battery work for my trolling motor? No, car batteries are not recommended and can ruin your motor.

Tips for Preserving the Lifespan of a Trolling Motor Battery

Again, many factors influence a battery’s lifespan, but they typically last at least five years and can be viable for up to 10 with proper maintenance.

Maximizing Battery Life

It’s a good idea to use a trickle charger during the offseason to keep power flowing through the battery, or to re-charge them every month. Allowing your battery to sit uncharged for a long time will reduce its performance and shorten its lifespan.

A lifespan of a lithium marine battery can last up to 10 times longer than traditional lead-acid batteries—ultimately saving money in the long run. The average life of these types of batteries will vary, but anglers can expect between 3,000 and 5,000 charge cycles depending on manufacturer and use.