Powering your trolling motor with a reliable 36V lithium battery is a game-changer for any serious angler. These advanced power sources offer significant advantages over traditional lead-acid batteries, including a dramatically reduced weight, a much longer lifespan, and the ability to provide consistent power from a full charge down to almost empty. Choosing the right one can mean the difference between a full day on the water and an unexpected early return to the dock.
For 2025, the market is filled with robust options designed to withstand the demanding marine environment. This roundup focuses on the best 36V LiFePO4 batteries, highlighting models with superior cycle life, advanced safety features, and smart technology. Whether you need maximum capacity for multi-day trips or a compact unit for your fishing boat, there is an ideal battery here to keep your trolling motor running strong and silent.
The Best 36V Lithium Batteries for Your Trolling Motor
- LOSSIGY 36V Lithium Golf Cart Battery with 25A Lifepo4 Charger
- FLLYROWER 36V Lithium Battery 100AH With 200A Smart BMS
- LiTime 36V 50Ah Trolling Motor Bluetooth Low-Temp Protection
- OGRPHY 36V Lithium Battery, 3.84KWh Golf Cart Batteries
- Timeusb 36V 50Ah Trolling Motor Lithium LiFePO4 Battery
- CHINS 36V Lithium Golf Cart Battery, 36 Volt 100Ah LiFePO4
- Dakota Lithium 36V 100Ah Deep Cycle Marine Battery
- Ampere Time 36V 100Ah LiFePO4 Battery with Self-Heating
LOSSIGY 36V Lithium Golf Cart Battery with 25A Lifepo4 Charger
This LOSSIGY battery is a comprehensive power solution, arriving with its own 25A charger for added convenience. Built with high-density Grade A cells, it promises a long service life of 10 years and over 4000 cycles, making it a dependable investment for your marine activities. The integrated 200A Bluetooth BMS offers robust protection against a wide range of potential issues, from temperature extremes to short circuits.
With a peak current of 1000A, this battery can handle the high initial demands of powerful trolling motors without a problem. Its self-contained, single-unit design makes installation and handling significantly easier than dealing with multiple traditional batteries. This is a solid, feature-rich choice for anglers who value both power and smart monitoring capabilities.
FLLYROWER 36V Lithium Battery 100AH With 200A Smart BMS
Designed for extreme longevity, the FLLYROWER battery boasts an impressive 16,500 deep cycle rating using top-tier Grade A cells. This means you can use virtually the entire capacity of the battery on every trip without worrying about damaging it, a clear advantage over lead-acid types. Its smart BMS includes crucial low-temperature protection, which is essential for early morning or cold-weather fishing.
This model offers excellent flexibility for future expansion, as it can be connected in parallel with other units to create a larger power bank for extended off-grid or marine use. The comprehensive suite of BMS protections ensures the battery remains safe from common electrical hazards, providing peace of mind in the challenging marine environment.
LiTime 36V 50Ah Trolling Motor Bluetooth Low-Temp Protection
LiTime brings credibility to the table with its membership in ABYC and ASA, ensuring this battery is built to marine industry standards. The 36V 50Ah capacity is well-suited for trolling motors up to 120lb thrust, offering a more compact and lightweight Group 31 form factor. Its integrated Bluetooth 5.0 allows for effortless real-time monitoring of the battery’s status directly from your smartphone.
The built-in 50A BMS provides robust safety features, including low-temperature cutoff, which protects the battery from being charged in freezing conditions. For those needing more power, this battery supports parallel connections for up to four units, expanding the total capacity to 200Ah. This is an excellent choice for the tech-savvy boater who requires a reliable and scalable power source.
OGRPHY 36V Lithium Battery, 3.84KWh Golf Cart Batteries
OGRPHY emphasizes the use of premium Grade A LiFePO4 cells, promising a long life of over 5000 deep cycles. With a substantial 3.84 kWh of energy, this battery provides ample power for long days on the water. The high-performance 200A BMS ensures a stable and continuous power supply, capable of handling peak currents up to 1000A for short bursts.
This battery is engineered to deliver consistent performance, whether you’re navigating a large lake or powering a golf cart across the course. Its robust construction and high discharge rates make it compatible with a wide range of trolling motors and other high-demand applications, ensuring you have the power you need when you need it most.
Timeusb 36V 50Ah Trolling Motor Lithium LiFePO4 Battery
The Timeusb battery is a durable option built for the marine world. Its IP65 rating for dust and water resistance provides an extra layer of defense against the elements, helping to prevent corrosion and damage from spray and humidity. This Group 31 battery is designed to power 36V trolling motors effectively, with a BMS that supports a boosted 60A discharge for up to 30 minutes.
Constructed with automotive-grade A-class cells, it offers a long service life of over 4000 cycles. The inclusion of low-temperature cutoff protection safeguards the battery’s health during charging in cold conditions. For anglers who frequently face damp or challenging weather, this battery’s rugged design is a significant benefit.
CHINS 36V Lithium Golf Cart Battery, 36 Volt 100Ah LiFePO4
CHINS combines smart features with high power in this 100Ah model. The built-in Bluetooth functionality and the included physical monitor give you multiple ways to check your battery’s status, whether you’re on the boat or at home. This level of oversight helps in planning your trips and maintaining the battery’s health over the long term.
With a powerful 200A BMS that can handle 1000A peak currents, this battery is well-equipped to manage the demands of a powerful trolling motor system. Its high energy capacity ensures you have plenty of runtime, making it a reliable choice for anglers who spend long hours on the water and need dependable power.
Dakota Lithium 36V 100Ah Deep Cycle Marine Battery
Dakota Lithium has built a strong reputation in the marine and outdoor industries for producing reliable and long-lasting batteries. This 36V 100Ah model is engineered specifically for deep cycle applications, offering a robust power solution for demanding trolling motors. Users can expect the high-quality construction and consistent performance the brand is known for.
The battery is designed to withstand the rigors of marine use, providing a stable power source throughout your fishing expedition. While specific technical details for the 2025 model are best confirmed on the product page, Dakota Lithium’s focus on durability and performance makes this a contender for any serious angler looking for a trusted name.
Ampere Time 36V 100Ah LiFePO4 Battery with Self-Heating
A standout feature of this Ampere Time battery is its self-heating function. This technology allows the battery to operate and accept a charge efficiently even in colder temperatures, a common limitation for standard lithium batteries. This makes it an ideal choice for anglers who fish in early spring, late fall, or in colder climates.
With a 100Ah capacity, it provides substantial energy for extended trolling motor use. The self-heating feature ensures that you get reliable performance and can recharge the battery regardless of the weather, maximizing your time on the water. For those who need a battery that performs consistently in a wider range of temperatures, this is a compelling option.
What to Look For in the Best 8V Lithium Battery for Your Trolling Motor
When I’m picking out a new 8V lithium battery for my trolling motor, the first thing I check is the amp-hour (Ah) rating. This number tells me how long the battery will last on a single charge. For a full day of serious fishing, I usually look for something in the 100Ah to 120Ah range. It’s the difference between nervously watching my battery meter and fishing with confidence until sunset. Remember, a higher Ah rating generally means more runtime, but it also means a slightly heavier and more expensive battery.
Next up is the battery management system, or BMS. I consider this the brain of the battery. A high-quality BMS is non-negotiable for me because it protects my investment from common dangers like overcharging, over-discharging, short circuits, and overheating. It also helps balance the cells inside the battery, which is crucial for long-term health and performance. I always make sure the battery I’m looking at has a robust BMS; it’s a feature you’ll be thankful for season after season.
Weight is another huge factor, especially if you’re like me and have to lug your gear from the truck to the boat ramp. The beauty of lithium is its incredible weight savings compared to old lead-acid batteries. An 8V lithium battery is significantly lighter, making setup and transport a breeze. This weight reduction also translates to better boat performance, as you’re carrying less dead weight, which can mean a slight increase in speed and efficiency from your main outboard.
I also pay close attention to the warranty. A company that stands behind its product with a long warranty period, say 3 to 5 years, is giving me a strong signal about the battery’s quality and durability. It shows they trust their product to last. Finally, I look at the physical build quality—things like a sturdy case that can handle the bumps and vibrations of being on the water, and reliable, corrosion-resistant terminals for a solid connection every time. Taking the time to consider these factors is the best way to find a battery that won’t let you down when you’re out on the water.
Frequently Asked Questions
Why should I choose an 8V lithium battery over a traditional lead-acid battery?
For me, the switch was a game-changer. Lithium batteries are dramatically lighter, which makes a big difference when loading and unloading the boat. They also last much longer on a single charge, meaning I can fish all day without worrying about power. Perhaps the biggest benefit is their lifespan; a quality lithium battery can last for thousands of charge cycles, far outliving any lead-acid battery I’ve ever owned. They also maintain a consistent voltage output, so my trolling motor performs at peak power until the battery is nearly depleted, unlike lead-acid which slowly loses power.
Can I use a single 8V battery for my trolling motor?
It depends entirely on your trolling motor’s voltage requirement. Most modern trolling motors require 12V, 24V, or 36V systems. An 8V battery is typically used as a building block to reach these higher voltages. For a 24V system, you would wire three 8V batteries in series. For a 36V system, you’d need four 8V batteries. It’s crucial to check your trolling motor’s manual to confirm the required voltage before you buy. Using a single 8V battery on a motor designed for a higher voltage will result in very poor performance.
How long will an 8V lithium battery typically last on the water?
Runtime isn’t a simple number, as it depends heavily on a few key factors. The amp-hour (Ah) rating of your battery is the starting point, but how you use your trolling motor is just as important. Pushing a heavy boat against a strong wind or current at high speed will drain the battery much faster than a calm day of slow trolling. As a rough estimate, a 100Ah battery in a 24V system might last me a full 6-8 hours of mixed usage. For the most accurate estimate, I look at my motor’s amp draw charts at different speed settings and do the math based on my battery’s capacity.
What is involved in maintaining an 8V lithium battery?
This is one of my favorite parts about lithium batteries: the maintenance is minimal. Unlike lead-acid batteries, there’s no need to check water levels or worry about charging them immediately after use to prevent sulfation. For the best 8V lithium battery options for trolling motors in 2025, the main task is proper storage. I make sure to store my battery in a cool, dry place and, if I’m not going to use it for a long time, I charge it to around 50-60% first. Using a compatible lithium-specific charger is also essential for safety and maximizing the battery’s lifespan.
Are there any special safety considerations with lithium batteries on a boat?
While lithium batteries are very safe, especially with a good BMS, a few simple precautions are wise. I always make sure my battery is securely mounted in a well-ventilated area to prevent it from moving around and to dissipate any minimal heat. Using the manufacturer-provided or recommended charger is a must, as an incorrect charger can be dangerous. It’s also a good practice to visually inspect the battery and its connections for any signs of damage or corrosion before each trip. Finally, purchasing from a reputable brand that uses high-quality cells and a robust BMS is your first and best line of defense.