Powering your trolling motor with the right battery is crucial for a long, successful day on the water. The shift from heavy, cumbersome lead-acid batteries to lightweight and efficient lithium iron phosphate (LiFePO4) options has revolutionized marine power. These batteries offer significantly longer runtimes, deeper discharge cycles, and a fraction of the weight, freeing up valuable space in your boat.
Choosing the best 24V lithium battery, however, requires careful consideration of factors like the battery management system (BMS), peak discharge current for motor starts, and overall cycle life. Our roundup for 2025 highlights eight top-performing options that deliver reliable power for your trolling motor, ensuring you spend less time worrying about your charge and more time focusing on the catch.
The Best 24V Trolling Motor Batteries for 2025
- TechCella 24V 100Ah LiFePO4 Battery with Low Temp Cut Off
- Lifepo4 Battery 100AH 24V with 100A BMS
- 24V Lithium Battery 100AH for Trolling Motors
- 24V 100Ah Trolling Motor LiFePO4 Battery by FIUNIE
- Litime 24V 100Ah LiFePO4 Deep Cycle Solar Battery
- WEIZE 24V 100AH Bluetooth LiFePO4 Lithium Battery
- ExpertPower 24V 100Ah Lithium Iron Phosphate Battery
- VMAXTANKS 24V 100Ah LiFePO4 Marine Battery
TechCella 24V 100Ah LiFePO4 Battery
The TechCella 24V 100Ah battery is engineered to deliver strong, consistent power for demanding applications like trolling motors. Weighing just 41.5 lbs, it is over 60% lighter than traditional lead-acid batteries, freeing up critical space and improving your boat’s balance. Its drop-in design means you can install it quickly without special wiring.
Built with Grade A cells and a robust 100A BMS, this battery handles a 300A surge current for motor startups and supports 120A continuous discharge for up to three minutes. It offers over 4000 cycles at 100% depth of discharge and features an automatic recovery system that reactivates within 30 seconds after an overload, ensuring your trip isn’t interrupted.
Lifepo4 Battery 100AH 24V
This 24V 100Ah Lifepo4 battery is constructed with A+ grade high-end cells, providing high energy density and superior balance voltage for stable and durable performance. It is an excellent power source for trolling motors and RVs, capable of handling the high inrush currents required during motor startup without issue.
With a 300A inrush discharge current and 1.2C discharge capability for up to three minutes, it reliably powers through demanding situations. The battery automatically recovers from overload protection in 30 seconds, minimizing downtime. Using a single 24V battery also eliminates the need for complex wiring associated with dual 12V setups.
24V Lithium Battery 100AH for Trolling Motors
Specialized for 24V trolling motors, this Lifepo4 battery provides the necessary power surge when your motor needs it most. It delivers a 300A inrush current for one second to handle motor startups smoothly and maintains a 1.2C discharge rate for three minutes. The battery’s overload protection resets automatically within 30 seconds.
Featuring EVE A+ Grade cells, this battery offers higher energy density and more stable performance than standard A-grade cells. Its compact and lightweight design is among the smallest in its class, providing 2560 watts of true capacity while saving you the extra wiring and maintenance costs of a dual-battery system.
24V 100Ah Trolling Motor LiFePO4 Battery by FIUNIE
The FIUNIE 24V 100Ah battery is built with advanced UL-certified automotive-grade LiFePO4 cells, ensuring stable performance and a long service life of up to 10 years and 15,000 deep cycles. Its high energy density of 2.56kWh in a single unit replaces two 12V 100Ah batteries, simplifying your power setup.
This battery is designed for expandability, supporting connections to create a 48V 400Ah battery pack for larger energy needs. The built-in 100A BMS provides comprehensive protection against overcharge, over-discharge, and extreme temperatures. With a recommended 29.2V 20A charger, it can be fully charged in just five hours.
Litime 24V 100Ah LiFePO4 Deep Cycle Solar Battery
Litime’s 24V 100Ah battery offers 2.56kWh of substantial energy, making it a versatile choice for trolling motors, RVs, and solar systems. Its expandable design supports 4P2S connections, allowing you to scale up to a 48V 400Ah system for more demanding power requirements without complication.
This battery is built for longevity, utilizing EV-grade cells that provide over 4000 cycles at 100% depth of discharge and a lifespan exceeding 10 years. It features a very low self-discharge rate of just 3% per month, ensuring it holds its charge much longer than lead-acid alternatives when not in use. The integrated 100A BMS offers full protection for safe operation.
WEIZE 24V 100AH Bluetooth LiFePO4 Lithium Battery
The WEIZE 24V 100Ah battery stands out with its integrated Bluetooth monitoring, allowing you to check the battery’s status directly from your smartphone. It delivers a powerful 500A peak discharge current for three seconds, making it highly capable for trolling motors that require a significant initial power boost.
Built with Grade A cells, this battery is rated for over 2000 cycles at 100% discharge and includes essential cold weather protection. The robust 150A BMS provides comprehensive safety features, protecting against overcharge, over-discharge, and temperature extremes. Its automatic reactivation feature ensures it comes back online quickly after a cutoff.
ExpertPower 24V 100Ah Lithium Iron Phosphate Battery
ExpertPower brings its reputation for reliability to the 24V 100Ah lithium battery market. This battery is designed for deep cycle applications, providing consistent power for trolling motors and other marine equipment. Its robust construction is made to withstand the rigors of frequent use on the water.
With a focus on safety and longevity, the battery includes a built-in Battery Management System that guards against common issues like overcharging and short circuits. The use of lithium iron phosphate chemistry ensures thermal stability and a long cycle life, offering a dependable power solution for serious anglers.
VMAXTANKS 24V 100Ah LiFePO4 Marine Battery
VMAXTANKS specializes in marine power solutions, and their 24V 100Ah LiFePO4 battery is built to meet the specific demands of boaters. It offers a reliable and maintenance-free power source, ensuring your trolling motor and other onboard electronics have the energy they need for extended periods.
This battery is engineered for a long service life and stable performance, even in the challenging marine environment. The LiFePO4 chemistry provides a high depth of discharge without damaging the battery, allowing you to use more of its capacity compared to older battery technologies. It’s a solid choice for those who prioritize durability.
Buying Guide: How to Choose the Best 8 Volt Lithium Trolling Motor Batteries for 2025
When I’m getting my boat ready for a long day on the water, I know my trolling motor battery is the heart of the operation. Choosing the right one makes all the difference between a great day of fishing and a frustrating paddle back to the dock. If you’re looking at a 36-volt system, you’ll need three of these 8-volt lithium batteries, and picking the right ones is crucial. Here’s what I always look for.
First and foremost, I check the amp-hour (Ah) rating. This tells you how much energy the battery can store, which directly translates to how long you can run your trolling motor. For a full day of serious fishing, I aim for at least 50Ah per battery. If you have a powerful motor or fish in heavy current, you might want to consider a 60Ah or even a 100Ah battery for each slot in your series. More Ah means more runtime, plain and simple.
Next, I look at the weight and physical size. This is one of the huge advantages of lithium over old lead-acid batteries. An 8V lithium battery is significantly lighter, which helps with boat performance and makes loading and unloading much easier. However, not all 8V batteries have the same footprint. You need to be sure the new battery will fit in the existing battery box or compartment on your boat. I always grab a tape measure and check the length, width, and height before I buy.
The Battery Management System (BMS) is a non-negotiable feature for me. A quality BMS protects the battery from almost every bad situation: overcharging, over-discharging, short circuits, and temperature extremes. It’s the brain of the battery that keeps it safe and extends its lifespan. I make sure any battery I consider has a robust, built-in BMS.
I also pay close attention to the maximum continuous discharge current. This number, in amps, tells you how much power the battery can deliver at any given moment. A trolling motor can have high amp draws, especially on higher thrust settings. I check my trolling motor’s specifications and ensure the battery’s discharge rating can handle the motor’s maximum amp draw without tripping the BMS.
Finally, I consider the brand reputation and warranty
You need 8V batteries when you are building a 36-volt trolling motor system. Many high-thrust trolling motors are designed for 36V power, which is achieved by connecting three 12V batteries in series. However, some boat manufacturers design specific compartments that fit four batteries. By using four 8V batteries in series (8V x 4 = 32V), you get a voltage very close to 36V that works perfectly with your 36V motor while utilizing the existing four-battery setup in your boat. I would strongly advise against this. You should never mix batteries of different ages, chemistries, or brands in a series setup. The lithium battery has different charging and discharging characteristics, and the older lead-acid battery will act as an anchor, limiting the performance of the entire bank and potentially causing damage. For a 36V system, you need to use three or four identical 8V lithium batteries together. Runtime depends entirely on your trolling motor’s amp draw and the battery’s amp-hour (Ah) capacity. If you have a 50Ah battery and your motor is drawing an average of 10 amps, you can expect roughly 5 hours of runtime (50Ah / 10A = 5h). On a lower speed setting with a 5-amp draw, that same battery could last 10 hours. Lithium batteries also provide more consistent voltage throughout the discharge cycle, so you get strong power from full to empty. You need a lithium-ion specific charger. Using a charger designed for lead-acid batteries will not work correctly and can be dangerous. For a series setup, you have two main options: a single-bank charger that can handle the total system voltage (like a 36V charger) or a multi-bank charger that charges each 8V battery individually. The multi-bank option is often preferred as it ensures each battery is perfectly balanced and charged. Yes, when they are built with a proper Battery Management System (BMS), they are very safe. The BMS prevents overcharging, over-discharging, and short circuits. They are also completely sealed and do not off-gas like lead-acid batteries, so there is no risk of explosive hydrogen gas building up in your bilge. This makes them a much safer option for the marine environment. From my experience, absolutely. The initial cost is higher, but the long-term value is fantastic. Lithium batteries last much longer (often 10 years or more), they are about a third of the weight, they require zero maintenance, and they provide full power until they are completely discharged. You also get more usable capacity from a similarly rated Ah battery. When you factor in all these benefits for your trolling motor, the investment in the best 8 volt lithium trolling motor batteries for 2025 makes a lot of sense.FAQ
Why would I need an 8-volt lithium battery instead of a 12V?
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How long will an 8V lithium battery last on a single charge?
What kind of charger do I need for these batteries?
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