You know that feeling of getting on the water, ready to fish, only to realize your trolling motor battery is too heavy to lug around or takes up half your kayak’s storage. A big, clunky battery can turn a relaxing day into a workout before you even drop a line. The good news? There are now smaller, smarter batteries designed specifically for trolling motors that won’t weigh you down or crowd your space.
In this guide, we’ve rounded up 10 of the best smallest batteries for trolling motors, ranging from ultra-portable 20Ah units to powerful 100Ah models that still fit in compact Group 24 boxes. You’ll learn what features matter most—like weight, capacity, and durability—so you can choose the perfect power source for your next adventure.
| Pick | Product | Best For | Pros | Cons | Check Price |
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| Best Overall | Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery, Lightweight & Sealed … | Budget-friendly marine trolling |
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| Best Budget | 12V 100Ah LiFePO4 Lithium Battery, BCI Group 24 Deep Cycle Solar Battery wi… | Long-lasting lithium for serious anglers |
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| Best Value | Mighty Max Battery 12V 35AH Wilderness Tarpon 100 Kayak Trolling Motor Battery | Kayak fishing and small craft |
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| Best Premium | ECO-WORTHY Portable 12V 20Ah Lithium Iron Phosphate DEEP Cycle Battery with… | Ultra-compact power with phone monitoring |
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| Best Heavy-Duty | Newport Trolling Motor Smart Battery Box Power Center with USB and DC Ports… | Battery organization and accessory power |
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| Best for DIY | ERYY LiFePO4 Lithium Battery 12V 25AH(30Ah) 384Wh, Built-in 30A BMS & LCD V… | Versatile lithium with built-in voltmeter |
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| Best Compact | DC HOUSE 12V 100Ah 3.0 Trolling Motor Marine Battery, Bluetooth & Low Temp … | Feature-rich lithium with multiple ports |
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| Best Beginner | SUNAPEX Smart Battery Box 12V/24V Power Center – Multi Ports & Circuit Brea… | Affordable battery box with built-in vo… |
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| Best Pro Pick | Dyness 12V 100Ah Mini LiFePO4 Battery Group 24, 12.8V Lithium Battery with … | Smallest 100Ah lithium for tight spaces |
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| Best Alternative | 12.8V 100Ah Trolling Motor LiFePO4 Battery, Group 24 Lithium Battery Built-… | Smart lithium with app and high power |
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Newport 12V50Ah Deep Cycle Heavy-Duty Marine Battery – Lightweight & Sealed AGM
Brand: Newport Vessels
A solid, affordable AGM battery that's easy to handle and perfect for powering a trolling motor on small to mid-sized boats.
If you’re looking for a balance between size, weight, and reliable power, the Newport 12V50Ah AGM battery hits the sweet spot. At just 32 pounds, it’s remarkably easy to carry and install, especially in smaller boats where every pound counts. The sealed AGM design means zero maintenance—no water topping, no acid spills—and it’s built to handle the vibrations and bumps of a day on the water.
This battery is specifically designed to work seamlessly with trolling motors, delivering steady 50Ah of deep-cycle power. You get a 12-volt output that’s perfect for running your motor for hours, plus the peace of mind that comes with a leak-proof, durable construction. While it’s not the absolute smallest on this list, it’s a fantastic option if you want a proven lead-acid battery that’s lighter than traditional flooded batteries but still very affordable.
- Lightweight at 32 lbs for a 50Ah AGM
- Sealed, leak-proof design
- Trolling motor compatible right out of the box
- Heavier than lithium equivalents
- Only 50Ah capacity compared to larger options
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- 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.
SUPER EMPOWER 12V 100Ah LiFePO4 Battery – Group 24 Deep Cycle with Low-Temp Protection
Brand: SUPER EMPOWER
An outstanding lightweight lithium battery that delivers massive capacity, incredible cycle life, and easy installation—perfect for anglers who demand the best.
The SUPER EMPOWER 12V 100Ah LiFePO4 battery is a true game-changer for trolling motor users who want maximum power in a compact, lightweight package. Weighing only 21.6 pounds, it’s a fraction of the weight of a lead-acid battery with the same capacity, making it incredibly easy to transport. The BCI Group 24 size (6.49″D x 10.24″W x 8.98″H) fits standard battery boxes without modification, so you can drop it in and go.
What really sets this battery apart is its longevity—up to 15,000 cycles at 60% depth of discharge, which means it could last a decade or more with normal use. The built-in BMS protects against overcharge, over-discharge, overcurrent, short circuits, and temperature extremes. Plus, low-temperature charging protection keeps the battery safe in cold weather. With 1280Wh of energy and support for solar, generator, or LiFePO4 charger input, it’s an incredibly versatile power source for your trolling motor and other marine electronics.
- Ultra-light at 21.6 lbs for 100Ah
- Up to 15,000 cycles for decade-long life
- Drop-in replacement for Group 24 lead-acid
- Higher upfront cost than lead-acid
- Requires a LiFePO4-specific charger for best results
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- 【Product Overview】Designed for deep cycle energy storage applications, SUPER EMPOWER LiFePO₄ batteries provide reliable power for RV, marine, trolling motor, and off-grid systems, featuring premium LiFePO₄ cells and an integrated BMS for protection against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes; ideal for auxiliary and house power needs in mobile and outdoor setups, ensuring stable and long-lasting performance. Designed for energy storage use only, this battery is not suitable for engine starting or cranking applications.
- 【Cycle Performance】The 12V 100Ah LiFePO₄ battery uses Grade A+ cells and supports long-cycle operation with high energy density. Designed for automotive replacement battery systems, RV electrical circuits, and marine power systems, it delivers approximately 5000 cycles at 100% DOD (6000 at 80%, 15000 at 60%). A built-in BMS helps manage charge, discharge, and temperature conditions for stable daily performance.
- 【Drop-in Replacement for Lead-Acid Batteries】 Dimensions: 6.49"D x 10.24"W x 8.98"H, Weight: 21.6 lbs. With a BCI Group 24 size and M8 terminals, it fits seamlessly into most standard battery boxes without modifications. The 12V 100Ah LiFePO4 lithium battery from SUPER EMPOWER is a true drop-in replacement for traditional lead-acid, AGM, or SLA batteries, making it ideal for RV, boat, or solar applications. Simply install and enjoy a longer-lasting, more efficient power source.
- 【3 Professional Charging Options】 Use a 12V LiFePO₄ charger (14.4–14.6V, CC/CV profile) for best results. Compatible with solar systems via MPPT/PWM controllers set to lithium mode. Generator charging is supported when paired with a lithium charger or DC-DC charger. Non-lithium chargers are not recommended. Charging is disabled below 32°F (0°C) by BMS protection.
- 【Low-Temperature Charging Function】Charging pauses automatically below 0°C (32°F) and discharge stops at –20°C (–4°F), resuming above 5°C (41°F). This function supports stable operation in cold-weather conditions for RV setups, 12V vehicle auxiliary power, marine applications, and off-grid systems operating in low temperatures.
- 【Expandable Energy Configuration】Supports up to 4 in series and 4 in parallel (Max 4S4P), forming a 51.2V 400Ah configuration with 20.48kWh capacity. Suitable for RV energy systems, automotive auxiliary power, marine power, and solar storage, with the integrated BMS managing cell balancing and multi-battery operation.
- 【5 Year Warranty】 SUPER EMPOWER LiFePO4 batteries come with a 5-year warranty! We also provide professional technical support and online customer service with fast support within 24 hours. If you have any product-related issues or questions, don't hesitate to get in touch with us directly, SUPER EMPOWER support team is always here for you.
Mighty Max Battery 12V 35AH – Wilderness Tarpon 100 Kayak Trolling Motor Battery
Brand: Mighty Max Battery
A reliable, small-form-factor AGM battery that's ideal for kayaks and lightweight setups where space is at a premium.
If you’re fishing from a kayak or a small boat where every inch of space matters, the Mighty Max 12V 35AH is a compact and trusted companion. Measuring just 7.76″ x 5.12″ x 7.01″, it’s small enough to fit in tight battery compartments or even under a seat. This is a sealed lead-acid (SLA) AGM battery, meaning it’s spill-proof and maintenance-free, so you can mount it in any position without worrying about acid leaks.
With 35Ah capacity, it’s well-suited for shorter fishing trips or powering a trolling motor on a lightweight kayak. It delivers a high discharge rate, wide operating temperature range, and deep discharge recovery—all for a very reasonable price. The only catch is that it doesn’t come with any wiring harness or mounting accessories, so you’ll need to supply those yourself. But for a compact, dependable battery that’s UL certified, the Mighty Max is a fantastic pick.
- Very compact dimensions
- Spill-proof AGM design
- UL certified and maintenance-free
- No included wiring or mounting hardware
- Lower capacity means shorter run times
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- ML35-12 SLA is a 12V 35AH Sealed Lead Acid (SLA) rechargeable maintenance free battery – UL Certified
- Dimensions: 7.76 inches x 5.12 inches x 7.01 inches. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
- SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
- Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
- Full One Year Warranty
ECO-WORTHY Portable 12V 20Ah LiFePO4 Battery – with Bluetooth 5.1 and Low-Temp Cutoff
Brand: ECO-WORTHY
An amazingly tiny lithium battery with smart Bluetooth features—perfect for minimalists who need just enough power for short outings.
When you need the absolute smallest battery that still packs a punch, the ECO-WORTHY 12V 20Ah LiFePO4 is a top contender. It measures only 8.70″ x 4.45″ x 4.61″ and weighs just a few pounds, making it perfect for tiny kayaks, traps, or even powering a fishfinder alongside your trolling motor. The ergonomic grip design makes it easy to carry, and the built-in Bluetooth 5.1 lets you monitor voltage, current, and remaining capacity from your phone—so you’ll never be caught off guard with a dead battery.
This battery also features a 5.5*2.5mm DC output port (5A limit) and traditional terminals, giving you flexibility for charging and powering small devices. The low-temperature cutoff protects the battery in cold weather—charging stops below 20°F and discharging below -4°F, with automatic resume once it warms up. While 20Ah is on the lower end for trolling motors, it’s ideal for short trips or as a secondary battery for electronics. The Bluetooth monitoring alone makes it a standout for tech-savvy boaters.
- Smallest LiFePO4 on this list
- Bluetooth 5.1 for real-time monitoring
- Low-temp cutoff for cold weather safety
- 20Ah capacity limits run time
- DC port limited to 5A
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- [Compact and Portable]The ECO-WORTHY 20Ah Battery, measuring 8.70 x 4.45 x 4.61 inches, is perfect for small kayaks, traps and amateur radio equipment. Its ergonomic grip design ensures easy handling and portability, providing a reliable power option for amateur radio enthusiasts and campers
- [5A DC Output Interface] Featuring traditional terminals and a 5.5*2.5mm DC port, this 12V battery supports standard charging and discharging, plus powering USB devices. For best performance, please stay within the 5A limit on the DC port to avoid excessive heat buildup, making it ideal for outdoor adventures, home emergencies, and small appliances.（Note: The product does not include the 5.5*2.5mm adapter wiring）
- [BT 5.1 Real-Time Monitoring] The new ECO-WORTHY 12V 20Ah LiFePO4 battery comes with Bluetooth 5.1. You can check battery voltage, current, and capacity anytime on your phone, and monitor its remaining lifespan. Stay worry-free and focused on every RV trip
- [Low-Temp Cut off Protection] The ECO-WORTHY 12V 20Ah LiFePO4 Battery features upgraded cold-weather protection. Its temperature sensor triggers the BMS to cut off charging when temps drop below 20℉, and stops discharge at under -4℉—with auto-resume once it warms to 32℉. Safeguards your battery, boosts longevity
- [BMS Protection] A 20A BMS safeguards this lifepo4 battery against overcharge, deep discharge, overload, overheating, and short circuits, while maintaining cell balance for peak performance and a longer life. It's a reliable choice for those needing dependable power in the field
- [Eco-Friendly Longevity] Our outdoor battery offers a lifespan exceeding 10 years and 5000+ deep cycles, outlasting lead-acid batteries that typically last 3 years with 300-500 cycles. It promises higher efficiency, less maintenance, and significant savings over time
Newport Trolling Motor Smart Battery Box Power Center – with USB and DC Ports (Medium)
Brand: Newport Vessels
A smart, all-in-one battery box that turns any battery into a portable power hub—ideal for anglers who want a neat, protected setup.
While not a battery itself, the Newport Smart Battery Box is the ultimate accessory for keeping your trolling motor battery organized and protected. This medium-sized box fits most Group 24 and 27 batteries and turns your messy wiring into a clean, all-in-one power center. It has external terminals for easy connection to your trolling motor and fish finder, plus built-in USB and 12V DC ports so you can charge your phone, GPS, or other accessories without opening the box.
The integrated 10A and 60A circuit breakers provide overload protection, giving you peace of mind even in rough conditions. The box is designed for kayaks, jon boats, and small watercraft where space is tight. If you already own a battery, this power center simplifies your setup and keeps everything tidy. It’s a must-have for anyone who wants a safer, more convenient way to manage power on the water.
- Cleans up wiring with external terminals
- Built-in USB and DC ports for accessories
- Built-in circuit breaker protection
- Does not include a battery
- Medium size may not fit larger Group 31 batteries
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- 🔋 SIMPLE, CLEAN POWER SETUP FOR ANY BOAT: Take the guesswork out of wiring with a 12V trolling motor battery box power center designed to make setup fast and straightforward. No exposed terminals or messy connections—just a clean, organized marine battery solution for kayaks, jon boats, and small watercraft.
- ⚡ EASY EXTERNAL CONNECTIONS, NO OPENING REQUIRED: Quickly connect your trolling motor, fish finder, or marine electronics using external battery terminals. This streamlined design keeps everything accessible and organized, so you can manage power without fumbling through awkward setups on the water.
- 🔌 ALL-IN-ONE MARINE POWER HUB: More than a battery case—this is a portable marine power center that keeps your motor and accessories in one place. Built-in USB and 12V DC ports let you power phones, GPS, and onboard essentials without adding extra wiring or clutter.
- 🛡️ BUILT-IN PROTECTION FOR WORRY-FREE USE: Integrated 10A & 60A circuit breakers help prevent overloads and reduce the risk of wiring mistakes. Designed for real-world conditions, this marine battery box gives you safer, more controlled access to power in outdoor environments.
- 🔍 BUILT IN BATTERY METER: Stay ahead of your trip by monitoring power before you hit the water and throughout the day. Check charge levels easily so you’re not guessing once you’re already out fishing or cruising. Compatible only with lead acid type batteries. NOT compatible with lithium ion batteries.
- 🚤 BUILT FOR CONFIDENCE ON EVERY TRIP: Rugged, portable, and easy to carry, this trolling motor battery box helps you head out feeling prepared. With a secure lid, durable construction, stable base, and rubber feet you can focus on the water and your fishing setup, not your power setup.
- 🇺🇸 USA BASED SUPPORT – Newport is headquartered in California with a dedicated in-house customer service team. Buy with confidence knowing real support is available when you need it.
ERYY LiFePO4 Lithium Battery 12V 25Ah – with LCD Voltmeter and 30A BMS
Brand: ERYY
A compact, expandable lithium battery with a handy display—perfect for trolling motors and small solar setups where weight and monitoring matter.
The ERYY 12V 25Ah LiFePO4 battery is a fantastic middle-ground option for those who want more capacity than a 20Ah but still need a compact, lightweight design. At just 6.3 pounds and measuring 7.1″ x 3″ x 6.8″, it’s about one-third the size and weight of an equivalent lead-acid battery. The built-in LCD voltmeter is a huge plus—you can check your battery’s state of charge at a glance, which is super handy when you’re out on the water.
With a 30A BMS and Grade A cells, this battery offers over 5,000 cycles and a 10-year lifespan. It supports series/parallel connections up to 4P4S, so you can build a 24V, 36V, or 48V system if needed. Charging options include a LiFePO4 charger, solar panel with MPPT controller, or generator plus charger. The low-temperature charging cutoff (below 32°F) protects the cells in cold weather. For a lightweight, versatile battery with a useful display, the ERYY 25Ah is hard to beat.
- LCD display shows battery status clearly
- Very lightweight at 6.3 lbs
- Expandable up to 4P4S for larger systems
- 25Ah may be limiting for all-day use
- Requires compatible LiFePO4 charger
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- 【12V 25Ah LiFePO4 Battery – The Ultimate AGM/Lead-Acid Replacement】 Ditch bulky lead-acid! ERYY 12V 25AH lithium battery weighs just 6.3lbs (1/3 of lead-acid) and is 50% smaller (7.1"×3"×6.8"), yet delivers 5,000+ cycles (10-year lifespan) with faster charging & zero maintenance. Perfect for solar/off-grid storage, RV/boat power, security equipment system and UPS backup. Upgrade to lighter, smarter, longer-lasting energy – the 12V 25AH LiFePO4 Lithium Batteries outperforms AGM/lead-acid in every way
- 【12V 25Ah LiFePO4 Deep Cycle Battery – Smart BMS & Premium A-Grade Cells】 Our 12V 25AH LiFePO4 battery for solar features a 30A BMS (Battery Management System) and A-Grade cells for top-tier safety & performance. The integrated BMS prevents overcharge/discharge, short circuits & overheating while balancing cells for max efficiency. Perfect for camping, golf carts, RV lighting & fish finders, it delivers 5,000+ cycles (10+ years), -20°C~60°C operation, faster charging & 98% efficiency—zero maintenance. The ultimate 12V leisure battery & lithium RV battery for reliable power
- 【4P4S Expandable Power for Ultimate Versatility】Unlock custom power with ERYY 12V lithium iron phosphate battery! Carefully series/parallel connect up to 4P4S(48V/24Ah max) using identical 12V fish finder battery to boost voltage (24V/36V/48V) or extend capacity. These 12v trolling motor LiFePO4 batteries are ideal for scaling systems without replacing equipment. Perfect for electric wheelchairs, home photovoltaic energy storage, children's electric vehicles, water pumps, and car refrigerators. Pro Tip: For safe expansion: Use batteries with the same capacity(25Ah), voltage(12V), BMS(30A), and brand(ERYY). Before connecting in series or parallel: fully charge each battery to ≈13.4V (resting)
- 【12V 25Ah Rechargeable LiFePO4 Battery – 3 Smart Charging Options】 ERYY 12V Rechargeable LiFePO4 Lithium Battery offers 3 charging methods for versatility: 1, LiFePO4 Charger (charging current≤10A) – fully charges in 2-4 hours with built-in overcharge protection. Charging temp: 32°F-113°F (0°C-45°C) / Voltage: 14.2V±0.2V for optimal safety. 2, Solar Panel + MPPT Controller – Pair with an MPPT controller (LiFePO4-compatible) for off-grid power in RVs, boats, or cabins. 3, Generator + LiFePO4 Charger Max Charging/Discharge Current ≤30A. Note: Avoid lead-acid chargers! Perfect for Power Wheelchairs, electric scooters, UPS backup, drones
- 【12 volt lithium battery with LCD Display & Worry-Free Support】 Smart power at your fingertips! ERYY 12V deep cycle battery features a built-in LCD voltage monitor for real-time status: 1, Recharge when only 2 bars remain (20%-30% capacity); 2, Unplugging when not in use to prevent battery drain; 3, Storage tip: Maintain 3-4 bars (40%-60% capacity). Perform a float charge monthly for 1 hour. 24/7 customer support ensures peace of mind! Lighter & longer-lasting (5,000+ cycles) than lead-acid, this 12v lithium leisure battery excels for Marine electronic equipment, solar/wind energy storage & RV power
DC HOUSE 12V 100Ah 3.0 Trolling Motor Marine Battery – Bluetooth & SOC Status Indicators
Brand: DC HOUSE
A smart, fully-featured lithium battery that gives you total control and convenience—ideal for tech-loving boaters who want all the extras.
The DC HOUSE 12V 100Ah is a feature-packed lithium battery that’s built for convenience and performance. It’s equipped with Bluetooth app monitoring so you can track SOC, voltage, current, and even individual cell status from your phone. The upgraded 3.0 version also includes visual SOC status indicators—a simple LED display that gives you at-a-glance information like remaining power, temperature warnings, and fault indications. That’s incredibly helpful when you’re out on the water and need quick info without pulling out your phone.
This battery also comes with multiple output ports: USB-A, USB-C, and a DC port, allowing you to charge three devices simultaneously—perfect for powering a fishfinder, phone, and fan. The low-temperature cutoff protects the battery in cold weather, stopping charge below 19.4°F and discharge below 4°F, with auto resume at 32°F. With a built-in 100A BMS and up to 15,000 cycles, the DC HOUSE 100Ah is a reliable, long-lasting power source for any trolling motor setup.
- Bluetooth app and LED status indicators
- Includes USB-A, USB-C, and DC ports
- Low-temp protection and 100A BMS
- Heavier than some other 100Ah lithiums
- App may have a learning curve
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- SOC Status Indicators: Upgraded 3.0 12V 100Ah trolling motor battery has a visual LED indicator, which is very simple and clear real-time to monitor the SOC battery remaining power, high temperature, low temperature, short circuit, overvoltage, low voltage and BMS fault indication and charging indication. Ideal for a variety of applications, such as trolling, camping, RVs, and more.
- Multi Port Adapter: DC HOUSE 100AH battery with 1*USB-A & 1*USB-C & 1*DC PORT that can charge 3 devices at the same time, which can greatly meet different charging needs.Perfect for families and outdoor travelers, it can charge smartphones, smart watches, cameran, fan and computer
- Bluetooth APP Monitoring: DC HOUSE 12V100AH battery has built-in Bluetooth, which can connect with DC HOUSE APP (Bluetooth signal range 5-10 meters. It is convenient to monitor battery information such as SOC, voltage, current, etc., and the data is accurate to the specific cell of a battery, there is a special fault display page to help troubleshoot.
- Low Temp Cut-Off: DC HOUSE 128V 100ah lifepo4 battery has upgraded Low Temperature Cut-Off Protection. When the temperature sensor of 100Ah lifepo4 detects that the temperature is below 19.4℉, the BMS will cut off the charging function, cut off the discharge when it is below 4℉, and automatically recover after the temperature rises to 32℉. Effectively protect the 12.8V 100Ah battery and extend the battery life.
- Safer Metal Fixtures: The internal battery cells of 100AH lithium batteries are fixed by metal clamps. Compared with other simple methods of fixing battery cells, the metal clamps can better stabilize the battery cells and ensure safety under various circumstances. In addition, when paired with A-grade battery cells, it can effectively extend the battery life by 30%.Up to 15,000 cycles and a service life of 10 years
- Automatic BMS: The built-in Battery Management System (BMS) protects your battery from overcharge and Discharge, Current, and Short Short-circuiting, for increased performance and longer life. The BMS will automatically cut off the battery and the voltage will drop below 1V
- Attention and Service: DC HOUSE is committed to providing 3 years of reported service for every battery sold. If you need help, please get in touch with us through Amazon or the after-sales address in the manual. We will provide professional and complete advice on battery connection, charging, and discharging
SUNAPEX Smart Battery Box 12V/24V Power Center – Multi Ports & Circuit Breaker
Brand: SUNAPEX
A well-designed, budget-friendly battery box that adds safety, illumination, and easy access to any marine battery.
Similar to the Newport box, the SUNAPEX Smart Battery Box is a universal power center that works with Group 24, 27, and 31 batteries. It’s a great way to turn your existing battery into a portable power station. The box features a 16A overload switch, a 12V cigarette lighter socket, two USB 5V 2.1A ports, and high-current terminals for your trolling motor. A built-in digital voltmeter shows real-time battery voltage, so you always know how much juice you have left.
One standout feature is the integrated LED light on the left side—perfect for nighttime fishing or setting up in low light. Ergonomic side handles make it easy to carry, and the 16A overload switch protects all ports from electrical damage. This box is compatible with both 12V and 24V systems, adding versatility. It doesn’t include a battery, but if you already have one, this is a clean, safe, and practical way to organize your power setup on a budget.
- Digital voltmeter for real-time monitoring
- Integrated LED light for night use
- Compatible with 12V and 24V systems
- Battery not included
- USB ports are only 2.1A (not fast charge)
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- SMART BATTERY BOX: Features a 16A overload switch, 12V cigarette lighter socket, 2 x USB 5V 2.1A ports, high-current terminals, digital voltmeter, and lighting, providing a safe and practical power solution
- INTEGRATED LIGHTING & CONVENIENCE: Built-in light on the left side provides illumination in low-light or nighttime use, improving visibility and safety. Ergonomic side handles make the battery box easy to carry and transport for mobile power applications
- PROTECTION SYSTEM: Equipped with a 16A overload switch, this boat battery box provides dedicated protection for all ports, effectively preventing damage caused by electrical overloads and short circuits.
- 12V/24V SYSTEMS: Compatible with Group 24, 27 and 31 AGM or lithium batteries. The digital voltmeter shows real-time battery status for easy power management. Ideal for trolling motors on fishing boats, kayaks and small boats. (Battery Not Included)
- PRODUCT DIMENSIONS: External 14 x 12.6 x 8.5 inches, internal 13.1 x 8.2 x 7.8 inches. The base is made of sturdy and slightly flexible plastic that is not easy to break or shatter (Battery Not Included)
Dyness 12V 100Ah Mini LiFePO4 Battery Group 24 – Compact & Lightweight Design
Brand: Dyness
An incredibly compact and durable lithium battery that squeezes full 100Ah power into a tiny footprint—perfect for boats with limited battery space.
If space is your biggest concern, the Dyness 12V 100Ah Mini LiFePO4 battery is engineered to be one of the smallest 100Ah lithium batteries on the market. Its dimensions (10.2″ x 6.6″ x 8.2″) take up only 0.25 cubic feet—35% smaller than traditional Group 24 batteries—yet it still delivers a full 100Ah of power. Weighing in at just over 20 pounds, it’s easy to maneuver into tight battery compartments.
The Dyness battery uses premium Grade A+ LiFePO4 cells and has a 10-year lifespan. It features an advanced BMS with protection against overcharging, over-discharging, overcurrent, overheating, and short circuits. It’s also IP65 waterproof and salt spray resistant, making it ideal for harsh marine environments. Low-temperature protection disconnects charging below 32°F and resumes at 41°F. For a compact, rugged battery that doesn’t compromise on capacity, the Dyness Mini is a top-tier choice.
- 35% smaller than typical Group 24 batteries
- IP65 waterproof and salt-spray resistant
- Grade A+ cells with 10-year lifespan
- Higher price than standard 100Ah lithiums
- No built-in Bluetooth or display
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- 【Compact & Lightweight Design】Dyness 12.8V 100Ah LiFePO4 battery mini Group 24 size : (L10.2*W6.6*H8.2 Inch), offering a smaller footprint of space（only 0.25ft³）35% smaller than traditional batteries, making it easier to install and transport without compromising power.
- 【Premium A+ Grade LiFePO4 Cells】Dyness 12.8V 100Ah lithium battery made with high quality grade A+ LiFePO4 battery cells that have up to 10-year lifespan, delivers superior energy density, ensuring longer runtime and reliable performance for your applications.
- 【Low-Temperature Protection】 Designed to operate efficiently even in cold environments, Dyness battery features low-temperature protection, ensuring reliable performance in various weather conditions. Automatically disconnects from charging when the cell temperature drops below 32°F (0°C). The discharging cut-off temperature is -4°F (-20°C), and charging resumes at 41°F (5°C).
- 【Advanced BMS Protection】Equipped with a built-in Battery Management System (BMS), Against overcharging, over-discharging, over-current, overheating, and short circuits, as well as Dustproof, IP65 Waterproof, Salt spray proof. Additional upgraded low-temperature power-off function to ensure safe use in low-temperature environments. Designed for harsh environments such as rainy or marine, or dusty and wet conditions.
- 【Up to 6000+ Deep Cycles】Engineered for durability, Dyness 12.8 volt lithium battery supports over 4000+ Cycles at 100% DOD, 6000+ at 80% DoD, providing a lifespan of up to 10 years and significantly reducing long-term costs.
- 【Wide Application Range】Perfect for Trolling motors, RVs, boats,, home energy storage, solar off-grid systems, and small golf carts. Its versatility makes it an ideal power solution for both outdoor adventures and everyday use.
- 【After-Sales Service】Dyness provide professional technical support and online customer service with fast response within 24 hours. If you have any product-related issues or questions, don't hesitate to contact us directly, the Dyness support team is always here for you
LIPULS 12.8V 100Ah Trolling Motor LiFePO4 Battery – Group 24 with Smart App Monitoring
Brand: LIPULS
A powerful, smart lithium battery that offers exceptional cycle life and app control—ideal for anglers who want maximum performance and monitoring.
The LIPULS 12.8V 100Ah lithium battery combines a compact Group 24 size with smart technology. Weighing only 23.28 pounds, it’s about one-third the weight of a lead-acid equivalent, making it easy to carry and install. It features a robust 120A BMS with six layers of protection—overcharge, over-discharge, overcurrent, short circuit, high/low temperature—so you can trust it in demanding conditions.
What makes the LIPULS stand out is its smart app monitoring. You can view voltage, charge status, set alerts, and even run fault diagnostics directly from your phone. This real-time data helps you manage your battery’s health and avoid surprises. With up to 15,000 cycles at 60% DOD, it’s built to last. Low-temperature charging protection stops charging below 32°F to prevent cell damage, resuming above 41°F. For a lightweight, app-connected battery with high power output (1536W peak), the LIPULS is an excellent choice for serious boaters.
- Smart app monitoring for real-time data
- 120A BMS with six protection layers
- Lightweight at 23.28 lbs
- App may have limited range (Bluetooth)
- No included USB ports on the battery itself
View all product features
- 【Lightweight & Compact G24 Design】Weighing only 23.28 lbs, the LIPULS 12.8V 100Ah lithium trolling motor battery fits standard G24 battery boxes and is 1/3 the weight of lead-acid. Perfect for trolling boats, RVs, and camping—save space without sacrificing power.
- 【Premium Safety & Deep Cycle Life】LIPULS 12.8V 100Ah deep cycle trolling motor battery built-in with Grade-A cells and a robust 120A BMS offering 6-layer protection (overcharge, over-discharge, over-current, short circuit, high/low temp). Enjoy 15,000 cycles at 60% DOD—ideal for deep cycle use in marine and solar systems.
- 【Smart App Monitoring】This 12V LiFePO4 battery enables real-time control and monitoring via a smart application. Users can view voltage, charge status, set alerts, and perform fault diagnostics directly from their mobile devices, enhancing convenience and safety.
- 【Low-Temp Charging Protection】Automatically stops charging below 32°F (0°C) to prevent cell damage, resuming above 41°F (5°C). This reliable cold-weather feature ensures your trolling motor battery remains safe year-round.
- 【Expandable 4P4S for High Power】LIPULS 12.8V 100Ah battery connects up to four 12V 100Ah batteries in 4P4S configuration for 24.57kW peak power and 20.48kWh capacity. Powers trolling motors, fish finders, RV appliances, and solar setups with massive energy storage.
Buyer’s Guide: What to Consider
Choosing the tiniest battery for your trolling motor isn’t just about picking the one with the smallest dimensions. You also need to consider how much power you’ll need, how often you’ll use it, and where you’ll store it. Here are the key factors to help you make the right choice.
- Capacity (Ah): Amp-hours (Ah) determine how long your battery can run your trolling motor. For small kayaks or short trips, 20Ah–35Ah is enough. For all-day fishing on larger boats, 50Ah–100Ah is better. Lithium batteries maintain higher usable capacity than lead-acid, so a 50Ah lithium often outperforms a 50Ah AGM.
- Weight and Size: If you're carrying your battery to and from the water, weight is critical. Lithium batteries are typically one-third the weight of lead-acid (e.g., 21 lbs for 100Ah vs. 60 lbs). Check dimensions to ensure your battery fits in your boat's compartment or battery box.
- Battery Type: AGM vs. LiFePO4: AGM batteries are cheaper and work well for occasional use, but they're heavier and have shorter lifespans. LiFePO4 lithium batteries cost more upfront but last thousands of cycles, are much lighter, and provide consistent voltage until nearly empty. For frequent use, lithium pays off over time.
- Built-in BMS and Safety Features: A good Battery Management System (BMS) protects against overcharging, over-discharging, short circuits, and overheating. Low-temperature charging cutoff is essential if you fish in cold weather—it prevents damage to lithium cells. Look for at least 4-layer protection.
- Ports and Connectivity: Some batteries come with USB-A, USB-C, or DC ports for charging accessories. Others offer Bluetooth monitoring so you can check battery status from your phone. While not essential, these features add convenience and help you manage power more effectively.
- Compatibility with Your Trolling Motor: Most trolling motors run on 12V, but ensure your battery's voltage and discharge rate (BMS rating) match your motor's requirements. A 100A BMS is generally sufficient for a standard trolling motor. Also check terminal type (M8, M6, etc.) for a secure connection.
- Battery Box or Power Center: A battery box protects your battery and organizes wiring. Some include circuit breakers, voltmeters, and extra ports. If you're building a new setup, consider buying a box separately to keep everything neat and safe—especially in a marine environment.
Conclusion
Whether you’re paddling a kayak, cruising a jon boat, or rigging a full fishing setup, finding the smallest battery for your trolling motor comes down to balancing weight, capacity, and budget. For ultra-compact needs, the ECO-WORTHY 20Ah with Bluetooth is a fantastic lightweight option. If you want a bit more juice without the bulk, the ERYY 25Ah offers a perfect middle ground with a handy LCD display. For all-day power in a small package, the Dyness 100Ah Mini stands out as the smallest full-capacity lithium battery on the market.
Remember, lithium batteries cost more upfront but save you weight and offer far more cycles than lead-acid. Pair your battery with a smart battery box like the Newport or SUNAPEX to keep everything organized and protected. No matter which you choose, you’ll spend less time wrestling with your battery and more time enjoying the water.