Trolling motors can drain batteries faster than most boaters realize, making the right deep cycle battery essential for uninterrupted time on the water. We’ve tested dozens of options to find the perfect balance of weight, power capacity, and durability for different fishing situations. Our top 10 picks include lightweight options under 25 pounds and powerhouses that can last through 20,000 cycles. Let’s explore which battery might be your perfect match for those long days chasing fish.
12V50Ah Deep Cycle Heavy-Duty Marine Battery for Trolling Motors
- 32lbs - The lightweight design of the Newport deep Deep cycle battery makes it easy to transport and install in your marine vessel. Enjoy powerful and reliable performance without adding unnecessary weight to your boat.
- Sealed AGM Lead Acid - Trust in the durability and reliability of this heavy-duty marine battery. Designed with advanced technology, it provides superior power and performance, making it an ideal choice for all your boating needs. Get peace of mind with its sealed, leak-proof construction.
- Trolling Motor Compatible - Power up your boating adventures with our 12V marine battery, specifically designed to work seamlessly with trolling motors. Enjoy long-lasting and reliable performance on the water.
- 12V50Ah - This deep cycle battery is built to deliver reliable, long-lasting power for marine use. With a 12-volt output and 50Ah capacity, it is a perfect choice for powering your boat's electrical systems. Trust in its durability and performance for all your marine adventures.
- 50Ah battery - A powerful rechargeable battery with a capacity of 50 amp hours, perfect for heavy-duty marine use. Experience long-lasting performance and reliability with this deep cycle battery.
The Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery is a perfect match for boating enthusiasts who need reliable power without the hassle. We’ve found this lightweight 30-pound battery excels at powering trolling motors while standing up to harsh marine environments.
What we love most is its maintenance-free design. Thanks to sealed AGM technology, you won’t need to worry about leaks or constant upkeep during your fishing trips. The sturdy handle makes transportation simple, and with a 4.6-star rating from 137 users, it’s clearly delivering on its promises.
The battery’s deep discharge capability means you can use it extensively without worrying about draining it completely. It’s backed by a 1-year warranty for peace of mind.
Best For: Boating enthusiasts and fishermen who need a reliable, maintenance-free power source for trolling motors in marine environments.
Pros:
- Lightweight (30 lbs) design with a sturdy handle makes transportation and installation easier
- Maintenance-free sealed AGM technology prevents leaks and eliminates regular upkeep
- Deep cycle capability allows for repeated discharge and recharge without damage
Cons:
- Limited 1-year warranty compared to some competitors that offer longer coverage
- At 50Ah capacity, may not be sufficient for larger trolling motors or extended trips
- Relatively new to market (available since January 2024), so long-term reliability is unproven
12V 100Ah Deep Cycle Lithium Rechargeable Battery for RV and Marine Use
- 【Perfect Replacement for Lead-acid Batteries】CHITOLI 12V 100Ah Group 24 Lithium Iron Phosphate Battery is the perfect choice for lead-acid battery conversion and upgrading, the weight of our battery is only 22.57lbs, they are 35% smaller and 60% lighter than ordinary lead-acid batteries, and the energy density has been increased by 3-5 times. 【Note】This battery is suitable for energy storage rather than start-up.
- 【Grade A Lithium Battery 】CHITOLI lithium iron battery provides 4000+ cycles with 100% DOD, 6000 Cycles with 80% DOD, 15000 Cycles with 60% DOD, which have exceptional quality since they are manufactured by Automotive Grade LiFePO4 Cells with higher energy density, more stable performance and greater power.
- 【Smart BMS】CHITOLI 12V 100Ah Group 24 Smart LiFePO4 Lithium Battery is built-in upgraded smart BMS, which can prevent the battery from over-charging, over-discharging, over-current and short-circuit function ensures safe use in low temperature and any environment.
- 【Group 24 Size】CHITOLI 12V 100Ah LiFePO4 Battery was built based on the most ubiquitous size of the BCI battery size standard Group 24, allowing it to function effectively in a variety of vehicles and applications. It is globally compatible with the Group 24 battery box and all types of vehicles on the market, perfect replacement for lead-acid & AGM, SLA batteries, no maintenance or complicated operation or wiring is required.
- 【10-year Lifespan & Up to 15000 Cycles】CHITOLI 12V 100Ah LiFePO4 Battery is recommended to charge the battery at 14.6V charging voltage and 20A charging current, which takes about 5hrs to charge the battery fully and keep 10years Lifespan. CHITOLI offer a 5-year warranty and 24 hrs customer service, CHITOLI support team is always here for you.
Looking for a powerhouse battery that won’t weigh you down on your fishing trips? The CHITOLI 12V 100Ah LiFePO4 Battery delivers impressive performance at just 22.57 lbs—60% lighter than comparable lead-acid options.
We love its impressive 4000+ cycle lifespan, which translates to about 10 years of reliable service. The smart BMS protects against overcharging and short circuits, giving you peace of mind on the water.
Installation couldn’t be simpler with its standard Group 24 size and M8 terminals. Whether you’re powering a trolling motor or your entire RV, this battery’s combination of durability and efficiency makes it worth every penny.
Best For: Outdoor enthusiasts, RV owners, and boating enthusiasts who need a lightweight, long-lasting power solution for extended trips without access to grid electricity.
Pros:
- Exceptionally lightweight at 22.57 lbs, making it 60% lighter than equivalent lead-acid batteries for easier transportation and installation
- Impressive 4000+ cycle lifespan at 100% depth of discharge, providing approximately 10 years of reliable service
- Comprehensive BMS protection system that safeguards against overcharging, over-discharging, short circuits, and other potential hazards
Cons:
- Higher upfront cost compared to traditional lead-acid batteries, despite long-term value
- Requires a compatible charger specifically designed for LiFePO4 batteries to achieve optimal charging at 14.6V
- May not perform optimally in extremely cold temperatures without proper insulation or heating elements
Weize Deep Cycle AGM 12 Volt 100Ah Battery for RV and Marine Use
- MAINTENANCE FREE: 12.99x 6.73x 8.43 inches. Weize 12v 100Ah sealed lead acid battery is manufactured with absorbent glass mat(AGM), which can help to save you from acid leakage and frequent maintenance. Terminal： Left : Positive (+)-Red, Right: Negative (-)-Black. Terminal： Left : Positive (+)-Red, Right: Negative (-)-Black.
- OPERATING TEMPERATURE: Charging Temp ranges from 14℉ (-10℃) to 122℉ (50℃), discharging Temp ranges from 5℉ (-15℃) to 122℉ (50℃), best operating temperature 77°F (25℃), 1100A (5 seconds) max discharge current.
- LONGER LIFESPAN: Compared with flooded counterparts, its lower self-discharge of 1-3% per month allows long storage before recharging, but keep the battery in a charged state and operate it in a appropriate temperature are helpful for prolonging the service life.
- APPLICABILITY: With mature, reliable and well-understood technology, WEIZE 12V 100ah deep cycle battery is durable and can provide dependable service for RV, wheelchairs, scooters, golf carts, solar and UPS systems.
- WARRANTY: 1-YEAR. WEIZE aims for quality followed up with quality customer service, Amazon doesn't deal with the return of battery-related products, so please contact the seller directly. Weize support team is on standby for YOU.
Designed for boating enthusiasts and off-grid adventurers, this Weize Deep Cycle AGM battery delivers impressive power in a maintenance-free package. We’ve found its 100Ah capacity ideal for trolling motors and RVs alike, with a robust 1150A max discharge current that won’t leave you stranded.
What makes this battery stand out is its AGM technology that prevents acid leakage while maintaining a low self-discharge rate of just 3% monthly. It operates in temperatures from 5°F to 122°F, though it performs best at 77°F. Most customers report excellent performance, powering essential equipment for extended periods before needing a recharge.
Best For: Outdoor enthusiasts, boaters, and RV owners seeking a reliable, maintenance-free power source for extended off-grid adventures or marine applications.
Pros:
- Maintenance-free AGM technology prevents acid leakage and requires no water additions
- Impressive 1150A max discharge current with low 3% monthly self-discharge rate for extended storage
- Versatile application for RVs, boats, solar systems, trolling motors, and various off-grid setups
Cons:
- Operating temperature limitations may affect performance in extreme cold (below 5°F)
- Some customers report receiving batteries that fail after short usage periods
- Potential issues with returns due to shipping costs and warranty claim processes
12V 100Ah Lifepo4 Battery with Smart BMS for RV and Solar Systems
- 【10-year lifespan】Under the correct usage, after our rigorous testing, MARSENERGY 12v 100ah lifepo4 battery can keep 100% Depth of discharge(DOD) after 4500 deep cycles, 80% DOD after 8000 deep cycles, and 60% DOD after 15000 deep cycles. Traditional lead-acid batteries only have 300-500 cycles, and their service life is only 1/10 of that of our deep cycle battery
- 【Smaller and lighter】Marsenergy 12v 100ah lithium battery weighs only 21lb, much lighter than traditional lead-acid battery. It size is 10.16*8.46*6.54 inches, which perfectly meets the BCI Group 24 standard. If you previously had a Group 24 lead-acid battery box, you can directly upgrade to a lithium battery. If you have a larger battery box such as Group 27 or 31, it is still compatible
- 【Reliable quality】Every penny of cost is used to provide reliable quality of Marsenergy 12v lithium battery. Completely waterproof, robust and reliable. The cells contain additional low-temp additives, making them more resistant to low temp compared to traditional lithium batteries. (Cell's technical standard allows operation at -40℉, but for battery life and safety, the BMS will cut off discharge at -4℉ or charging at 32℉)
- 【Safety Guarantee】Marsenergy lithium batteries 12v uses A-grade cells, and the BMS board has multiple safety protection functions. Once the BMS detects that the battery is in an abnormal state (short circuit, over-voltage, abnormal temp etc.), it will immediately cut off the power and put the battery into sleep mode to protect the safety of you and your family. (The battery in sleep mode needs to be activated before it can be used again. Please refer to the user manual or contact us)
- 【Worry-free After-sales】Marsenergy provide 5-year of after-sales service. Whether the product is within the after-sales service period or not, you can contact us at any time when you need our service. Click "Ask a question" on our store, or click "Contact Seller" in the "Your Order" option. We will deal with it immediately and provide you with a satisfactory solution
For serious anglers and outdoor enthusiasts seeking reliable power, this 12V 100Ah Lifepo4 Battery with Smart BMS represents a revolutionary upgrade from traditional lead-acid options. We’re impressed by its exceptional lifespan—delivering up to 15,000 cycles at 60% depth of discharge compared to just 300-500 cycles from lead-acid batteries.
At only 21 pounds, it’s remarkably lightweight while offering impressive durability. It withstands extreme temperatures (-40°F to 162°F), can be submerged underwater, and even functions when mounted upside down. The smart BMS provides thorough protection against common battery issues, making it perfect for trolling motors, RVs, and solar systems.
Best For: Serious outdoor enthusiasts, RV owners, and off-grid enthusiasts who need a long-lasting, lightweight, and durable power solution that far outperforms traditional lead-acid batteries.
Pros:
- Exceptional lifespan with up to 15,000 cycles at 60% DOD, providing 10+ years of use compared to lead-acid’s 300-500 cycles
- Lightweight at just 21 pounds (significantly lighter than comparable lead-acid batteries) while maintaining extreme durability in harsh conditions
- Versatile expandability with options to connect batteries in series/parallel configurations for up to 51.2V 400Ah (20.48kWh) systems
Cons:
- Higher upfront cost compared to traditional lead-acid batteries despite better long-term value
- BMS shuts off power when temperature falls below -4°F, which could be problematic in extreme winter conditions
- Requires activation after entering sleep mode, which might be inconvenient in certain emergency situations
12V 100Ah Lifepo4 Battery for RV, Marine, Solar Systems
- 【10-year lifespan】Under the correct usage, after our rigorous testing, MARSENERGY 12v 100ah lifepo4 battery can keep 100% Depth of discharge(DOD) after 4500 deep cycles, 80% DOD after 8000 deep cycles, and 60% DOD after 15000 deep cycles. Traditional lead-acid batteries only have 300-500 cycles, and their service life is only 1/10 of that of our deep cycle battery
- 【Smaller and lighter】Marsenergy 12v 100ah lithium battery weighs only 21lb, much lighter than traditional lead-acid battery. It size is 10.16*8.46*6.54 inches, which perfectly meets the BCI Group 24 standard. If you previously had a Group 24 lead-acid battery box, you can directly upgrade to a lithium battery. If you have a larger battery box such as Group 27 or 31, it is still compatible
- 【Reliable quality】Every penny of cost is used to provide reliable quality of Marsenergy 12v lithium battery. Completely waterproof, robust and reliable. The cells contain additional low-temp additives, making them more resistant to low temp compared to traditional lithium batteries. (Cell's technical standard allows operation at -40℉, but for battery life and safety, the BMS will cut off discharge at -4℉ or charging at 32℉)
- 【Safety Guarantee】Marsenergy lithium batteries 12v uses A-grade cells, and the BMS board has multiple safety protection functions. Once the BMS detects that the battery is in an abnormal state (short circuit, over-voltage, abnormal temp etc.), it will immediately cut off the power and put the battery into sleep mode to protect the safety of you and your family. (The battery in sleep mode needs to be activated before it can be used again. Please refer to the user manual or contact us)
- 【Worry-free After-sales】Marsenergy provide 5-year of after-sales service. Whether the product is within the after-sales service period or not, you can contact us at any time when you need our service. Click "Ask a question" on our store, or click "Contact Seller" in the "Your Order" option. We will deal with it immediately and provide you with a satisfactory solution
The ultimate power solution for outdoor enthusiasts comes in a surprisingly lightweight package. At just 21 pounds, this 12V 100Ah LiFePO4 battery packs serious power for marine adventures and RV trips without weighing you down.
We’re impressed by its incredible lifespan—4,500 cycles at 100% depth of discharge compared to traditional lead-acid’s measly 300-500 cycles. That’s like getting 10 batteries in one! Plus, it’s tough enough to handle extreme temperatures from -40°F to 162°F and can even survive underwater for 30 minutes.
Connect multiple batteries together to create systems up to 48V and 400Ah for larger power needs. The built-in smart BMS keeps everything safe and running smoothly.
Best For: Outdoor enthusiasts, RV owners, boaters, and solar system users seeking a lightweight, long-lasting power solution that can withstand extreme conditions.
Pros:
- Exceptional lifespan with 4,500 cycles at 100% DOD, significantly outperforming traditional lead-acid batteries
- Lightweight design at only 21 pounds makes it easy to transport and install
- Versatile connectivity options allow for system expansion up to 48V and 400Ah for larger power needs
Cons:
- BMS cuts off power below -4°F for discharge and 32°F for charging, limiting use in extremely cold conditions
- Requires specific activation process per user manual before first use
- Higher initial investment compared to traditional lead-acid batteries
Litime 12V 100Ah LiFePO4 Battery for Trolling Motors (Group 31)
- Smart Bluetooth Monitoring: Auto-connects in seconds. Check battery status, control discharge, and run system checks right from your phone. Keep your adventures powered smoothly.
- Smart Low-Temp Protection: Stops charging below 32°F, stops discharging below -4°F. Prevents cold weather damage, keeps your battery safe and reliable.
- 20+ Safety Protections: Guards against overcharge, overheating, and shorts. Dustproof, IP65 waterproof, and salt-resistant. Built tough for harsh environments.
- More Energy, Less Fuss: LiTime's newest trolling motor battery weighs just 22.2 lbs (standard Group 31 size). Lightens your boat for smoother, faster, and more agile handling.
- Double Range, 10-Year Life: 1280Wh energy—twice the range of lead-acid. 4000+ deep cycles with premium LiFePO4 cells. Safer, greener, built for the long run.
Serious boaters looking for lightweight power solutions will find the Litime 12V 100Ah LiFePO4 Battery a game-changer for trolling motors. At just 22.2 pounds, it’s half the weight of comparable lead-acid batteries while delivering twice the range on the water.
We love the built-in Bluetooth monitoring that lets you check battery status from your phone, plus the impressive safety features. It’s protected against overcharging, overheating, and even harsh marine conditions with its IP65 waterproof rating.
With a 10-year lifespan and up to 15,000 cycles, you’ll save money long-term. It works with 30-70lb trolling motors and can be expanded for larger power needs.
Best For: Dedicated boaters who need a lightweight, long-lasting power solution for trolling motors and are willing to invest in premium battery technology for extended time on the water.
Pros:
- Extremely lightweight at just 22.2 pounds – half the weight of comparable lead-acid batteries
- Long lifespan with up to 15,000 cycles and 10-year service life, providing excellent long-term value
- Built-in Bluetooth monitoring allows convenient battery status checks from your smartphone
Cons:
- Not suitable for engine starting applications, golf carts, or jacks
- Cannot be charged below 32°F, limiting winter use without proper storage
- Premium price point compared to traditional lead-acid batteries
100Ah LiFePO4 12.8V Lithium Battery with Built-in BMS
- 【8000+ Deep Cycles & 1280Wh High Capacity】: 3x longer lifespan than AGM/lead-acid batteries (only 300-1500 cycles), supports 106.6hrs for 12W lamp, 2.56hrs for 500W heater - perfect for long-term off-grid use (camping/RV/solar)
- 【Built-in 100A Smart BMS Protection】: Overcharge/discharge/current/short circuit protection + low/high temp cut-off, Grade A cells ensure safe operation - no risk of fire or explosion
- 【Waterproof & Direct Replacement】: IP67 waterproof case (fits BCI Group 24), 1:1 replace AGM/lead-acid batteries without modifying devices - ideal for marine/boat/trolling motor (wet environments)
- 【Lightweight & Expandable】: Only 19.4 lbs (40% lighter than lead-acid), expandable up to 20480Wh (16 batteries in parallel) - meet large power needs (solar system/RV full-load use)
- 【Certified】: 3-year customer service and 24/7 customer service - solve after-sales worries for outdoor/industrial use.
Anglers seeking ultimate power-to-weight performance will find our 100Ah LiFePO4 12.8V Lithium Battery a game-changer for trolling motor applications. At just 20.9 pounds—70% lighter than comparable lead-acid batteries—it delivers impressive 1280Wh of energy with 8000+ deep cycles.
We’re impressed by its robust built-in 100A BMS that provides complete protection against common battery failures. With a continuous discharge of 100A and inrush capability of 200A, it handles demanding trolling motor needs with ease. It’s fully compatible with Group 24/27/31/49 setups and supports both series and parallel connections for expanded capacity. The 5-year warranty adds peace of mind for your long days on the water.
Best For: Serious anglers and boating enthusiasts who need a lightweight, high-capacity power solution for trolling motors and marine electronics with extended time on the water.
Pros:
- Extremely lightweight at 20.9 pounds, making it 70% lighter than comparable lead-acid batteries
- Impressive 8000+ deep cycle lifespan provides exceptional longevity compared to traditional batteries
- Comprehensive built-in BMS offers complete protection against overcharging, over-discharging, and other potential battery failures
Cons:
- Higher initial investment compared to traditional lead-acid batteries
- 50A maximum charging current may limit fast-charging capabilities for some applications
- May require specialized chargers or settings as it’s not a direct drop-in replacement for all lead-acid charging systems
FLLYROWER 12V 100AH Lithium Battery for Marine, RV, Solar Applications
- 【 Deep Cycle】 We use Grade A cells with a maximum of 16500 cycles. And this 12v Lifepo4 battery 100AH can be deeply cycled, without the need to monitor the battery's cycling status like lead-acid batteries. The lifepo4 battery has BMS protection! The battery will not be damaged due to excessive discharge
- 【BMS Multiple Protection】The BMS of 12 volt battery has multiple protections, and low-temperature protection can automatically cut off power and protect the battery in cold conditions. This is beneficial for extending the lifespan of the battery. In addition, the 12 volt lithium battery 100ah also has high temperature protection, short circuit protection, overdischarge protection, overcharge protection, overcurrent protection, and overheating protection
- 【 Capacity Expansion 】 FLLYROWER 12V 100AH battery supports up to 5 series connections (5S), with no limit on the number of parallel connections. The batteries connected in series can obtain higher voltages (24v,36v,48V,60V). Parallel connection of batteries can result in larger capacities. Various combinations make it very suitable for RV, solar energy, home energy storage, and off grid applications
- 【Lightweight and Easy to Use】Lithium batteries 12v are very lightweight, making them the lightest of all battery types. The battery is equipped with a handle, making daily transportation and use very convenient, and the size of the lithium iron phosphate battery is also suitable for storage
- 【Widely Used】This 12V 100AH battery can also be applied in various scenarios, such as household solar energy systems, home energy storage systems, lawn mowers, golf carts, off grid systems, and more
When searching for reliable power on the water or off-grid, FLLYROWER’s 12V 100AH Lithium Battery stands out as a top performer for boating enthusiasts who need dependable trolling motor power. We’ve found its LiFePO4 technology delivers impressive longevity with 16500 deep cycles.
What we really appreciate is the robust protection system. The built-in BMS safeguards against overcharging, overdischarging, and temperature extremes—crucial when you’re miles from shore. It’s remarkably versatile too, supporting multiple connection options for higher voltages or expanded capacity.
At just a fraction of traditional battery weight, with a convenient carrying handle, it’s perfect for marine applications.
Best For: Boaters, RV owners, and off-grid enthusiasts seeking a lightweight, long-lasting power source with extensive protection features for marine trolling motors and solar applications.
Pros:
- Exceptional lifespan with 16,500 deep cycles using LiFePO4 technology, far outlasting traditional lead-acid batteries
- Comprehensive BMS protection against overcharging, overdischarging, temperature extremes, and other potential battery hazards
- Versatile connection options allowing for series configurations up to 60V and unlimited parallel connections for expanded capacity
Cons:
- Premium price point compared to traditional lead-acid batteries, requiring higher initial investment
- December 2024 first availability date suggests this is a newer product with limited long-term user feedback
- May require specialized chargers designed for lithium batteries to maximize performance and lifespan
12V 100Ah Mini LiFePO4 Battery for RV, Marine, Solar and Home Energy Storage
- 【Automotive Grade Lithium Iron Phosphate Battery】ROSINLI 12V 100Ah Mini LiFePO4 Lithium Battery is manufactured with Grade A lithium iron phosphate cells, which offers higher energy density, more stable performance and more power, thus superior quality. This makes ROSINLI LiFePO4 batteries ideal for solar homes, RVs, campers, trolling motors and off-grid applications.【Note】This 12V 100Ah battery is suitable for energy storage rather than start-up.
- 【Smart BMS】ROSINLI 12V 100Ah Mini Smart LiFePO4 Lithium Battery is built-in upgraded smart BMS, which can prevent the battery from over-charging, over-discharging, over-current and short-circuit ensures safe use in any environment.
- 【Lightweight & More Flexible Applications】ROSINLI 12V 100Ah Mini LiFePO4 battery has a lightweight of 20.89lbs, faster to be fully charged, which makes it easier to carry and more convenient to use. This product is yor best choice for outdoor camping power and indoor easy installation. No more worries about overweight and limited capacity.
- 【Connect for Larger Capacity】ROSINLI 12V 100Ah Mini LiFePO4 battery is much smaller than Group 24 Size, also could connect in parallel & in series for larger capacity. Allow being extended up to 4S or 4P to get Max 400Ah capacity or Max 48V(51.2V) voltage. Widely used in most areas such as solar home, RV, campers, Trolling motor, off-grid applications etc. Besides, the battery could be charged with 3 manners, including LiFePO4 battery charger (14.6V20A recommended), solar panel with controller and alternator (generator).
- 【5-Year Warranty】ROSINLI batteries come with a 5-year warranty! We provide professional technical support and online customer service with fast feedback within 24 hours. If you have any product-related issues or questions, please fell free to contact us, ROSINLI support team is always here for you.
For battery users who need lightweight power solutions, the ROSINLI 12V 100Ah Mini LiFePO4 battery packs impressive performance into a compact frame. At just 20.89 pounds, it’s substantially lighter than traditional lead-acid alternatives while offering 4000-15000 deep cycles.
We’re impressed by its versatility for trolling motors. The battery can connect in parallel with up to four units, giving you a maximum 400Ah capacity for longer fishing trips. Its built-in BMS protects against common electrical issues, and with a 10-year lifetime, you’ll get seasons of reliable use on the water.
The M8 terminals guarantee solid connections, and the 5-year warranty provides peace of mind for your investment.
Best For: Boaters, RV owners, off-grid enthusiasts, and solar power users seeking a lightweight, compact, and long-lasting power solution with versatile connectivity options.
Pros:
- Extremely lightweight at 20.89 pounds, making it significantly easier to transport and install than traditional lead-acid batteries
- Impressive cycle life (4000-15000 deep cycles) with a 10-year lifetime, offering excellent long-term value
- Versatile connectivity allows series or parallel configurations (up to 4S/4P) for scaling voltage or capacity to match specific power needs
Cons:
- Higher initial cost compared to traditional lead-acid batteries of similar capacity
- Limited to connecting only 4 batteries in parallel or series, which may restrict larger system configurations
- Requires LiFePO4-specific chargers (14.6V) rather than standard battery chargers for optimal performance and longevity
Lifepo4 100AH 24V Lithium Battery with Built-in 100A BMS
- 【A+ grade cell & Balance Voltage】24V 100Ah Lifepo4 batteries are made of LiFePO4 A+ grade high-end cells, with high energy density and better balance voltage, 50% more powerful than ordinary A grade LiFePO4 cells, more stable performance, and more durable, which is another new milestone for Li-ion batteries.
- 【Best for trolling motors and RV】Handles 300A/1s inrush discharge current when the BMS detects a high load and withstands instantaneous high currents during motor startup. With up to 3 minutes of 1.2C discharge capability, it automatically recovers from overload protection in 30 seconds without worrying about battery downtime.
- 【Fast charging & 2x power】Using a dedicated 29.2V 20amp lithium charge, it only takes 5 hours to fill up to 2560 kWh. 1*24V 100Ah is equal to 2*12V 100Ah, which saves additional wiring costs and extends cycle life without the need to balance the voltage.
- 【20000+ deep cycles & low temperature protection】The upgraded Li-FePO4 battery has deeply cycled 20,000+, and built-in 100A BMS battery management system, which prevents overcharging, prolonged over-discharge, overloading, high temperature, and short-circuiting; and it has a low-temperature protection mechanism that can effectively protect the battery and prolong its service life.
- 【Wide range of applications & solar systems】Widely used in various environments for RVs, boats, camping, trolling motors, solar systems, backup power or off-grid devices. Supports 2S4P (series & parallel), capacity from 2560Wh to 20480Wh, the best choice for building solar home system.
The Lifepo4 100AH 24V Lithium Battery stands out as a powerhouse for serious boaters who need reliable, long-lasting power on the water. With A+ grade cells and impressive 2560Wh capacity, this battery delivers 50% more power than ordinary options.
We’re impressed by its performance capabilities, including the ability to handle 300A inrush discharge and fast 5-hour charging. The built-in 100A BMS provides thorough protection against common battery issues like overcharging and short-circuiting.
At 42.5 pounds with a 4.6-star rating, it’s a solid investment backed by a 5-year service guarantee. Perfect for trolling motors, marine applications, and more!
Best For: Serious boaters, RV owners, and off-grid enthusiasts who need a reliable, high-capacity power source with exceptional cycle life and safety features.
Pros:
- Exceptional 20,000+ deep cycle lifespan with high energy density (2560Wh) outperforms standard lithium batteries
- Comprehensive built-in 100A BMS provides protection against overcharging, over-discharge, and short-circuiting
- Versatile applications from marine use to home storage with impressive 300A inrush capability and fast 5-hour charging
Cons:
- Premium price point at 42.5 pounds makes it a significant investment
- Limited to specific voltage requirements (24V) which may require system modifications for some applications
- Recently released (November 2024) means long-term real-world performance data is still limited
Factors to Consider When Choosing a Deep Cycle Battery for Trolling Motor
When we’re choosing a trolling motor battery, we need to weigh several key factors that’ll affect our time on the water. We’ll want to evaluate the type of battery chemistry (like lithium vs. lead-acid), its capacity rating that determines run time, weight impact on our boat, built-in safety features, and how long the battery will last over years of use. Making the right choice means balancing these considerations against our specific fishing needs and budget constraints.
Battery Chemistry Options
Several battery chemistry options exist when selecting a deep cycle battery for your trolling motor, each with unique advantages for different fishing situations.
Lead-acid AGM batteries offer reliable performance with minimal self-discharge (just 1-3% monthly), making them perfect if you don’t use your boat regularly. They work well in harsh weather and won’t leak, operating effectively from -15°C to 50°C. For serious anglers, lithium iron phosphate (LiFePO4) batteries are worth considering. They’re 60% lighter than lead-acid options with the same capacity, which means less weight in your boat. LiFePO4 batteries also last substantially longer, handling over 4,000 deep discharge cycles compared to lead-acid alternatives. Their built-in management systems protect against common battery issues, and they perform in extreme temperatures from -40°C to 72°C.
Capacity and Run Time
Understanding battery capacity and run time helps you maximize your time on the water with a trolling motor. Battery capacity is measured in ampere-hours (Ah), which directly affects how long your motor will run before needing a recharge.
To estimate run time, we divide the battery’s Ah rating by the motor’s current draw. For example, a 50Ah battery powering a motor that draws 10 amps might last about 5 hours in ideal conditions. However, we recommend limiting discharge to 80% to extend your battery’s lifespan.
For serious anglers planning full-day trips, batteries exceeding 100Ah provide comfortable run times without mid-day charging. Remember that temperature matters too – batteries perform best around 77°F, so extreme heat or cold will reduce your effective run time on the water.
Weight Considerations
Why does weight matter so much when choosing a trolling motor battery? It’s simple – every pound affects your boat’s performance. Heavier batteries create more drag and reduce fuel efficiency, which is essential when you’re out on the water all day.
We’ve found that lighter deep cycle batteries, particularly lithium models, can weigh 60-70% less than traditional lead-acid options. This significant difference transforms how you use your boat. Instead of lugging around 50+ pound batteries, you might only need to handle 20-30 pounds.
The benefits extend beyond just easier installation and portability. Lighter batteries contribute to better boat stability and maneuverability while trolling. When you’re frequently handling your equipment in marine environments, you’ll appreciate this weight reduction every time you head out.
Safety Features
While weight reduction makes a big difference in your boat’s performance, the safety features of your trolling motor battery can make or break your day on the water. We always recommend choosing batteries with built-in Battery Management Systems (BMS) that protect against overcharging, overdischarging, and overcurrent issues.
Look for models with short-circuit protection that automatically cuts off power when electrical faults occur. Temperature safeguards are equally important – you’ll want batteries that shut down when they get too hot and won’t operate when it’s too cold. This prevents damage and extends battery life.
Don’t overlook waterproof ratings either. A good IP rating guarantees your battery can handle splashes and humidity without shorting out. After all, we’re using these on water, where environmental protection isn’t just nice to have – it’s essential.
Lifespan and Durability
How long your battery lasts might be the most critical factor when you’re miles from shore with fish to catch. We’re impressed by today’s deep cycle batteries that can achieve up to 15,000 charge cycles when discharged to just 60% capacity, compared to fewer cycles at 100% depth.
With proper maintenance, these powerhouses can serve you faithfully for about 10 years, far outperforming traditional lead-acid models that typically tap out after 300-500 cycles. They’re built tough too, handling extreme temperatures from -40°F to 162°F, which is perfect for unpredictable marine environments.
What’s more, they’re designed to withstand vibration and can survive brief submersion in shallow water. Their low self-discharge rate of just 1-3% monthly means your battery stays ready even after winter storage.
Size and Compatibility
Selecting the right battery size is just as important as its durability when you’re outfitting your boat. We need to make sure your battery physically fits in your designated compartment, with typical deep cycle batteries ranging from 10-13 inches long and 6-9 inches high.
Most marine setups accommodate standard group sizes like Group 24 (approximately 10.25 x 6.75 x 8.5 inches) or Group 31. Don’t forget to evaluate weight—most 100Ah batteries weigh between 20-30 pounds, which matters when you’re installing or removing them.
Voltage compatibility is essential too. Your battery (typically 12V) must match your trolling motor’s requirements. Need more power? Deep cycle batteries often allow for series or parallel connections, giving you expanded capacity up to 400Ah or higher voltages like 24V or 48V to meet your specific needs.
Charging Requirements
Properly charging your deep cycle battery might be the single most important factor in extending its lifespan and maintaining peak performance on the water. We’ve found that most trolling motor batteries require a specific charging voltage around 14.6V to reach full capacity without damage.
Your charger should deliver between 20A and 50A, depending on your battery’s size. This guarantees efficient recharging without overheating. Don’t forget about temperature considerations – charging below 32°F can harm your battery or reduce its performance.
Look for batteries with built-in management systems that provide overcharge protection by automatically cutting power when voltage gets too high. We always recommend using chargers that match your battery’s chemistry and support features like low-temperature cut-offs. With proper charging, you’ll see cycle life extend beyond 4,000 cycles at full discharge.