Best Lithium Marine Batteries

Aimeno focused on safety and reliability, with years of marine battery experience, Aimeno Battery strives to offer the best in lithium battery storage solutions. We’ve created solutions for narrow boats, speedboats, fishing boats, pontoons, sailboats, bass boats, trolling motors, electric yacht motors, kayaks, houseboats and power boats, etc.

Lithium battery charge faster than lead-acid batteries, they reduce the overall weight of the battery pack, and they have a significant positive impact on the top speed and overall fuel consumption of your boat. Replacing lead-acid batteries with our lithium battery can increase your power by two to three times!

This article will introduce you to the incredible world of lithium marine batteries. These advanced power sources are revolutionizing the marine industry with their exceptional features, versatility, and safety.

Lithium Marine Batteries Features:

Lithium marine batteries offer a wide range of features that make them highly desirable for marine applications. Here are some key features of lithium marine batteries:

  • High Energy Density

  • Light Weight and Compact

  • Fast Charging

  • High Discharge Efficiency

  • Longer Lifespan

  • Low Self-Discharge Rate

  • Versatility

  • Battery Management Systems (BMS) Compatibility with Inverter

  • Eco-Friendly

  • Enhanced Safety Features

Features of golf lithium battery

Suitable for lithium marine battery voltage

12V Golf Lithium Battery

12V Golf Lithium Battery

24V Golf Lithium Battery

24V Golf Lithium Battery

36V Golf Lithium Battery

36V Golf Lithium Battery

48V Golf Lithium Battery

48V Golf Lithium Battery

Advantages of marine lithium batteries

Extended Lifespan

Weighs Less

Lithium Marine batteries' weight is reduced giving more space and control for equipment or for an additional stored battery capacity. They are much lighter than gel batteries which are twice the weight of a lithium battery. The weight reduction of deep cycle battery aids in increasing efficiency and better performance making lithium battery a perfect accompaniment for boats.

Higher Efficiency

High Performance

Lithium deep cycle battery holds its voltage over the cycle, giving more power for marine applications than lead-acid battery which releases fewer Amps limiting the use of appliances. Lithium batteries provide more usable amp hours capacity available than lead-acid batteries before they are needed to recharge without worrying to damage the battery.


Convenient and Economical

Lithium Marine Batteries are maintenance-free, cost-effective and have longer-lasting power than lead-acid batteries. Lithium Marine batteries can maintain good operating conditions in humid environments on board.

Enhanced Performance

Long Lifespan

Lithium marine batteries can be used and last longer than lead-acid batteries. A battery's life is estimated through the number of cycles at a certain discharge. Lithium marine batteries' estimated usage is at the range of 5,000 cycles and more when used attentively, rather than lead-acid battery which only lasts for 500 to 1,000 cycles.

Lithium Marine Batteries - Lithium Marine Batteries Manufacturerss

7 years professional Lithium Marine Batteries manufacturers, 10-year warranty on battery packs, using the best PACE/DALY/JBD BMS protecting the lithium battery pack from overcharge, over-discharge, over-current, short circuit, etc. The batteries can configurable Bluetooth function & can be connected in series and parallel. The heating function and other special functions can also be customized. We have enough raw materials stock ready for assembling, the sample can be ready to ship around 15days.

Lithium ion Golf Cart Batteries - lithium ion battery Manufacturers

Lithium Marine Batteries Management System:

Lithium Marine Batteries have an internal battery management system (BMS), meaning the BMS will immediately shut down the battery if a dangerous or unsafe condition is identified in order to prevent any damage or thermal explosion. This would give you enough confidence in its reliability.

Aimeno as Marine battery manufacturers make the marine batteries based on deep cycle batteries because they have thicker plates which make them efficient for large discharge of power for a longer time.They also provide power to the engine alternator, wind generator and shore power charger.

Lithium Marine Batteries safety precautions:

  • Here’s what you need to know about lithium batteries’ safety.

  • Stay Out of the Extreme Heat

  • Avoid Charge under Sub-Freezing Temperatures

  • Safe Storage and Shipping

  • Watch for Signs of Malfunction

  • Leave Emergencies to the Professionals

Why Buy From Us

Top Quality Cell

Automotive Grade Lithium Battery

LiFePO4 battery have exceptional quality since they are manufactured by Automotive Grade LiFePO4 Cells with higher energy density, more stable performance & greater power. Highest-level safety based on UL Testing Certificate for the cell inside the battery.This makes li-iron batteries perfect for solar home, RV, campers, motor homes, off-grid applications.

Small Order Acceptable

15 Years Lifetime

LiFePO4 battery provides 4000~15000 cycles (15 times longer) 4000 Time Cycles at 100% DOD, 6000 Time Cycles at 80% DOD, 15000 Time Cycles at 60% DOD & a 15-year lifetime compared to 200~500 cycles & a 3-year lifetime in lead acid battery.

OEM/ODM Acceptable

Lightweight-Easy to Move

LiFePO4 Battery Weighting only 24.25 lbs for one module, it’s weighs only 1/3* the weight of lead acid batteries. LiFePO4 battery is 50% lighter than lead acid battery with the same capacity.

Door to Door Logistic Service

95%* Efficiency

LiFePO4 battery’s flat discharge curve holds above 12.8V for up to 95%* of its capacity usage, providing astronomical boosts in run-time compared with only 50% in Lead Acid. This product is your best choice for outdoor camping power and indoor easy installation. Without memory effect, no matter what state the battery is, it can be used as soon as it is charged.

1000+ Happy Customers

Strict Protection

LiFePO4 battery has built-in BMS to protect it from overcharge, over-discharge, over-current, high temp and short circuits. Operating Temp: Charge: 0°C~50°C; Discharge: -20°C~60°C.

Great Team

Top Quality Cell

We own 10 cells warehouses and we have rich channel for EVE, CATL,li-ion battery, and lifepo4 battery, all the cells are brand new, grade A+ quality with excellent consistency to ensure the overall performance of complete assembled battery packs.

Custom Lithium Marine Batteries Cooperation Process

Confirm Customer Needs

Step 1: Confirm Customer Needs

Please contact us by phone or email and we will reply with custom battery design within 24 hours! Confirm the customer's application requirements such as: lithium battery parameters, performance, working environment, appearance, size, etc.

Project Review

Step 2: Project Review

We will try to find the best solution for your custom project and provide detailed price, delivery time and payment details

2D, 3D Design And 3D Sample Confirmation

Step 3: 2D, 3D Design And 3D Sample Confirmation

According to customer needs, put forward a preliminary product design plan. And make 3D samples according to the design plan. Then send the drawings and samples to the customer for confirmation.

Mold Development

Step 4: Mold Development

Open the mold, according to the 3D sample confirmed by the customer. Test the comprehensive performance reliability of the product. Then modify the mold until the customer confirms OK.

Product and Tooling Confirmation

Step 5: Product and Tooling Confirmation

If the sample goes well, you can send us the deposit, we will start mass production, you can send the QC staff during the production or when it is finished.


Step 6: Shipping

We will find the best reliable way to ship the battery to you, along with all required shipping documents such as MSDS, UN38.3, IEC62133.

Lithium Marine Batteries Buying Guide:


1. Determine Your Needs

Do you need to power a trolling motor? Fishing electronics? Do you have other load power needs for lithium batteries? Please indicate the continuous load situation and peak load situation.

2. Set Your Budget

Utilizing lithium batteries for your boat will save money and time over the long haul. Still, it’s an investment.

3. Choose the Best Lithium Battery for Boat

Here are the top three priorities when choosing a lithium battery for marine applications.

Types of Lithium Marine Batteries and Their Purpose


Most bass boats require two basic types of 12 volt batteries. The cranking, or starting battery type is used to start the main engine. And the deep cycle battery type is used to power the trolling motor and other accessories. Some batteries do both, to some extent anyway.


Deep cycle batteries, unlike cranking batteries, are designed to release power slowly. They can be drained and recharged multiple times over their lifespan. While both are important, deep cycle batteries are the ones that you depend on for most of your navigation and power. These batteries are responsible for the trolling motor and other battery powered appliances on your boat (Like your audio system, fish finder, and GPS).


Some boats don’t have room for more than one battery, so they need a dual-purpose battery. While dual-purpose batteries are available on the market, many boaters don’t choose them. Because they aren’t as powerful as a cranking battery. They also don’t last as long as a deep-cycle battery. Instead, most professionals opt for two separate batteries.

The 4 Boat Battery Technology Types

There are four different technologies you can choose from. There are lead-acid battery, gel batteries, AGM batteries (Absorbed Glass Mat), and lithium batteries. Here’s the pros and cons of each:


Comparing a lithium battery to the rest is like comparing an iPhone to a flip phone. Both options work, but one clearly has better reliability, function, and design. Lithium batteries come with a cost, but they last longer, weigh much less, are maintenance free, and aren’t toxic to the environment. With our lithium batteries (unlike others) you’ll know precisely how much charge is left.


These batteries are inexpensive short term, and can be recharged multiple times. However, they also break easily, and have to be maintained constantly to avoid problems. Checking and refilling the water level every couple of weeks is extremely important or you risk damaging your battery. In addition, leakage can be devastating to marine environments, and brings up a lot of safety concerns.


These batteries don’t require a lot of maintenance, and they rarely leak. However, the upfront cost is expensive, and if they do need maintenance from overuse, it’s difficult to reach the internal components. Chances are, you’ll just have to purchase a whole new battery instead. They also require more battery charges as they can only be discharged to 50% whereas an Ionic lithium battery can be drained to full capacity.


Gel batteries are popular because they don’t require a recharge very often, and they can be stored for a long time without losing their life. Their drawback is how expensive they are compared to other batteries with the same RC and MCA. Charging a gel battery can also be an annoying process. The charge cycle can be slow, and you have to be present to disconnect the battery charger as soon as it’s complete. Failure to do so can cause irreversible damage, requiring a new battery and a whole lot of money down the drain.


Whether you’re fishing on your bass boat or cruising around on your houseboat, lithium batteries will improve your experience.

The benefits you’ll get include:

  • Weight Reduction

  • Energy Efficiency

  • Cost-Effective

  • Maintenance-Free

  • Improved Technology

  • Performance Enhancement


Every boat has a weight limit, and reducing the weight on it is very important. Keeping your boat lightweight offers many benefits, such as increasing your fuel economy and your boat’s speed.

This is where lithium batteries really excel. Not only do they take up less space, which is also crucial on marine vessels, but they also weigh significantly less than other batteries. You can expect to reduce your battery weight by at least two-thirds, which can amount to a hundred pounds or more depending on your setup.


When you switch to lithium batteries, you’ll automatically double the amount of power you can use. This is because you can use the total charge of your batteries, making them much more energy efficient than lead-acid batteries.

Lead-acid batteries shouldn’t be depleted below 50%. Doing so can cause damage and shorten the battery’s lifespan. Fortunately, lithium batteries don’t have this problem. They can safely be depleted down to 0% without any negative consequences.

When you’re out fishing ten to twelve hours of the day, this makes a huge difference. You won’t need to constantly monitor your batteries’ charge levels to make sure you don’t discharge them too far. You won’t even need to worry about using your generator to charge them back up because you can likely go multiple days between charges, depending on your usage.

Lithium batteries also charge more efficiently, which leads to shorter charge times. It only takes about a third of the time to fully charge lithium batteries compared to lead-acid batteries, which means you’ll be able to get back on the water quickly.


Lithium batteries do cost more upfront, but the battery’s longevity means that you’ll save money in the long run. Lead-acid batteries require maintenance to stay in good condition, and even with the proper care, they degrade much faster than lithium batteries. In fact, lithium batteries can last ten times as long as lead-acids.

Lead-acid batteries only see between 100 to 500 discharge cycles. On the other hand, lithium batteries can get over 5,000 discharge cycles. This equates to at least ten years of lithium battery power for your boat.


Lead-acid batteries require maintenance to keep them in top condition. This includes adding water, checking acid levels, cleaning corrosion, and checking for leaks or spills. Lithium batteries don’t have acid, so they don’t require any maintenance at all. They’re also fully sealed, so you don’t have to worry about moisture or water damage.


Lithium marine batteries use LiFePO4 technology, which is inherently safe. Additionally, they come equipped with an internal BMS, or battery management system. This system monitors the battery constantly to make sure that it’s performing optimally.

You also won’t have to worry about fire or explosions because the BMS detects unsafe conditions by monitoring the temperature and charge of the battery. It has safety circuits that prevent the battery from overheating, overcharging, and over-discharging, which protects the battery’s health and lifespan. Since lithium batteries don’t have acid, you also won’t have to worry about leaks. They won’t produce gases, and they’re non-toxic, making them a much safer and environmentally friendly option.


Lithium batteries provide better performance and power than typical lead-acid batteries. This is because they have better voltage output than lead-acids.

Lead-acid batteries will lose voltage as the charge is drained. They also lose voltage under heavier loads. This is called the Peukert effect. For bass boats, this means that your trolling motor will gradually lose thrust. Once your batteries decrease to 50% charge, you’ll no longer be able to power the motor at all.

Fortunately, lithium batteries don’t suffer from this phenomenon. They can handle heavy loads, and they won’t lose voltage or power no matter the battery’s charge level. Your trolling motor will be running at full strength whether the batteries are at 100% or 1%. This means you’ll get better performance throughout your trip. Plus, you’ll get at least twice the amount of time out on the water.

Why is Lithium batteries a Better Choice for Marine?

There are a few factors that make lithium batteries the best choice for marine applications. Aimeno lithium marine batteries are lighter, more efficient and can last considerably longer than traditional lead-acid batteries.

Size & Weight

The heavier the boat, the more surface area of the hull is touching the water. This increases the friction between the boat and the water, reducing fuel efficiency and speed. It's important to pay attention to the amount of weight in your boat to keep from filling the gas tank too often and feeling like the boat just can't get up to speed. Not to mention the instability this can create which can make it easier for the boat to take on water in rougher waters.

Lithium batteries are less than half the weight of comparable flooded and absorbed glass mat (AGM) lead acid batteries. For example, an marine lithium battery weighs less than 30 pounds. On the flip side, lead-acid batteries can range anywhere from 60-80 pounds depending on the design of the battery.

Number of Charge Cycles

A charge cycle is each time the battery is charged, used (discharged), and recharged to a full charge. Every time you charge the battery to 100%, use the battery to 20% (80% depth of discharge), then recharge back to 100% is considered a complete charge cycle.

Aimeno lithium marine batteries have a substantially longer battery life with the ability to complete at least 5,000 charging cycles before a new battery may be needed.

Power Storage

The lead acid battery loses its power as more of its capacity is used, and continued use to depleted charge levels without a full recharge can be severely detrimental to the longevity of the battery's life.

Lithium batteries on the other hand can be used down to about 80% depth of discharge (percentage of their capacity) safely without damaging the battery. Our lithium marine batteries can be used down to 1% and still provide the same amount of power as if they were fully charged.

The increased energy storage is one of the best features of a lithium battery. You get double the usable power which could result in needing fewer batteries. Which in turn brings us back to weight. Fewer batteries = less weight.

Virtually maintenance-free

No more periodic filling with water to top off the electrolyte. Lithium batteries have considerably less maintenance than flooded or AGM batteries.

Long-term Cost Savings

All of those benefits come with a slightly higher upfront cost. However, lithium batteries are known for lasting as much as TEN times longer than lead acid when they are taken care of.

When you take into account, potentially, five batteries, downtime and installation headaches the upfront cost of a high-quality lithium battery makes a lot of sense. You will even more than likely come out ahead in the end. Spend less money long-term and more time on your boat in the water.

How Do I Maintain Lithium Boat Batteries?

Lithium batteries are actually quite easy to maintain, quite a bit easier than their lead acid counterparts.

Charge them after each use

Boats are not like cars. They aren't equipped with an alternator to recharge your batteries when you are out on the lake. After a long day out on the lake using your deep-cycle batteries, plug them into a charger after each trip to ensure they are optimally charged for each use.

Use the right charger

Use a battery charger that is designed to be used with lithium batteries and preferably one that has an automatic shut-off or maintenance mode so you don't need to have your eyes glued to your battery while it's charging.

Install them securely

Use a battery box to enclose the battery to keep it out of the elements. Also, make sure that when you install the batteries you are securing them so they don't bang around. Lithium batteries are very vibration resistant but if the batteries are loose and banging around, their life will be shortened dramatically.

Store them properly in the off-season

When it's time to pack up the boat and tuck it away for the winter make sure that you are not ignoring your batteries during the off-season. The very first thing you should do before storing them for the winter is charge them up to 100%. Storing them under-charged will lead to a shortened life.

An added bonus for those new to lithium marine batteries is that they have a much lower self-discharge rate. They will last longer on shelves and in storage before needing a recharge vs their lead acid counterparts.

Marine Battery Care & Maintenance

4 Simple Steps to Prolong the Life of Your Marine Battery

Choose an adequate battery size for your needs. Using a battery that is too small will force the battery to use more power than necessary and reduce the usable life of the battery.

Minimize your power demands. Arguably the most inexpensive way to increase life expectancy of your battery is to turn off unnecessary electronics when not in use, like fish finders, lights (when not necessary), etc.

Add an alternative energy source like solar panels or a wind turbine to help keep the batteries charged to optimal levels.

Equip a smart charging regulator to create the ideal charging environment to charge the battery with the boar’s alternator.

Tips For Maintaining Your Boat Battery

Get yourself a battery box - Use a battery box to minimize the impact of vibration and also to keep your battery secure. (Note that sometimes they're required by law.) An unsecured battery can cause damage to both the battery and your boat.

Keep connection points clean - If you notice corrosion on your battery terminals, clean it up with a mixture of baking soda and water.

Waterproof chargers for the win - Waterproof chargers are perfect for your time on lakes, rivers or other waterways; you'll never find yourself on the water with a dead battery.

What is the difference between a deep cycle marine battery and trolling motor battery?

Trolling motor marine battery – To start the motor, the battery must provide a short, intense burst of energy. If consuming less than 50 percent, it can damage them and shorten their life span. So we need trolling motor battery to provide such kind of power for our boat.

Deep cycle marine battery – once the ship’s engine starts, it no longer needs a short but powerful burst of energy. Instead, the ship needs constant, reliable power to activate the decoys — including electronics like GPS, radios and cell phones.

Frequently Asked Ruestions

Are lithium marine batteries safe for marine environments?

Yes, lithium marine batteries are designed to withstand the rigors of marine environments and incorporate safety features to ensure secure operation.

How long do lithium marine batteries typically last?

The lifespan of lithium marine batteries can vary depending on usage, but they generally last significantly longer than traditional lead-acid batteries.

Can I use a lithium marine battery as a starting battery?

Yes, some lithium marine batteries are specifically designed for starting applications, but it's important to select the appropriate battery type for your needs.

Are lithium marine batteries maintenance-free?

Yes, lithium marine batteries require minimal maintenance compared to traditional batteries. However, it's still important to follow the manufacturer's guidelines for optimal performance.

Can I use my existing charger for lithium marine batteries?

In most cases, you will need a charger specifically designed for lithium batteries to ensure proper charging and prevent damage.

Are lithium batteries good for marine use?

Are Lithium Batteries Safe on Boats? Yes, lithium batteries are safe for marine and boat applications. Lithium batteries are sealed, which means that moisture and even a bit of water splashing on them will not cause harm. Additionally, most lithium batteries have an internal battery management system (BMS).

What is the lifespan of a lithium marine battery?

around 10 years

Long Life over 5000 Cycles

Lithium Battery Power Batteries require almost no maintenance at all. Our lithium batteries are good for about over 5000 life cycles vs. 200-300 life cycles that most AGM or lead acid batteries live for. This typically means that your LBP battery will last for around 10 years.

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