Top 6 Lightweight Trolling Motor Battery 2026

If you’re searching for the lightest trolling motor battery or a reliable lightweight deep cycle marine battery, choosing the right model can significantly impact your time on the water.

In this guide, we review some of the most popular lightweight options for trolling motors, comparing weight, performance, battery chemistry, and real-world usability. Whether you’re upgrading your kayak setup or optimizing a bass boat system, this breakdown will help you find the best lightweight trolling motor battery for your needs.

Part 1. How We Tested & Evaluated These Batteries

To ensure a fair and transparent comparison, we evaluated each lightweight marine battery using the same criteria:

Evaluation Criteria:

• Weight efficiency (trolling motor battery weight vs capacity)
• Battery chemistry (AGM vs LiFePO4 performance differences)
• Usable capacity & runtime
• Durability & cycle life
• Ease of installation & portability
• Value for money
• Real-world suitability for trolling motors

Testing Approach:

• Data reviewed from manufacturer specifications
• Cross-comparison of discharge efficiency and energy density
• Focus on real boating use cases (kayak, small boats, bass fishing setups)
• Long-term cycle performance (where available from manufacturers)

While we did not conduct lab testing, we prioritized verified specifications and real-world user scenarios commonly used in marine applications.

Part 2. Quick Comparison: Best Lightweight Trolling Motor Batteries

Part 3. MIGHTY 12v 35ah Light Weight Trolling Motor Battery

• Product: 12V 35AH REPLACEMENT BATTERY COMPATIBLE WITH MINN KOTA SEVYLOR LIGHT TROLLING MOTOR
• Brand: MIGHTY
• Model: ML35-12711
• Price: $74.99
• Weight: 23.15 Lbs
• Voltage: 12V
• Capacity: 35000mAh
• Power Type: Sealed Lead Acid & Absorbent Glass Mat (AGM)
• Dimensions: 7.68 in. x 5.16 in. x 7.13

About the Battery：

Delivering power when you need it, the MIGHTY MAX ML35-12 12-Volt 35 Ah uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications

ML35-12 is an Absorbent Glass Mat (AGM) technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models

MIGHTY MAX SLA batteries are utilized in a wide variety of applications including, consumer electronics, electric vehicles, engine starters, golf carts, hunting, lawn and garden tools, medical mobility, motorcycles, power sports, portable tools, solar, toys and hobby, access control devices, emergency lighting, security and more
Dimensions: 7.68 in. x 5.16 in. x 7.13 in. listing is for the battery and screws only, no wire harness or mounting accessories included

Part 4. NEWPORT 12v 50ah Deep Cycle Lightweight Marine Battery

• Product: NEWPORT 12V 50AH DEEP CYCLE MARINE BATTERY FOR TROLLING MOTORS
  
• Brand: NEWPORT
  
• Price: $129.00
• Weight: ‎38 LBS
• Voltage: ‎12 V
• Capacity: 50AH
• Power Type: SLA (AGM)
• Dimensions: 7.75″ X 6.5″ X 6.89″
  

The 12V50Ah Deep Cycle Battery, meticulously designed for small boat and kayak enthusiasts.Newport’s Deep Cycle Battery stands as a lightweight powerhouse, offering an unparalleled power source without compromising on portability. The safety of your on-water experience is assured through Sealed AGM Lead Acid Battery technology, eliminating concerns about leaks and spills.

Unleash the freedom to embark on extended journeys, knowing that Newport’s Deep Cycle Battery provides a reliable 12-volt output, perfectly suited for all your boating electronics.

Part 5. GoldenMate 12V 100Ah Group 31 LiFePO4 Lightweight Battery for Trolling Motor

• Product: GoldenMate 12V 100Ah Group 31 LiFePO4 Lithium Battery, 1280Wh Energy, Built-In BMS
• Brand: GoldenMate
  
• Price: $235.99
• Weight: ‎30.86LBS
• Voltage: 12 V
• Capacity: 100Ah
• Power Type: LiFePO4
• Dimensions: 12.91*6.78*8.35

1. Affordable BCI group 31 deep cycle battery
2. 1/3 Lighter & 8X Higher Mass Energy Density (60.95Wh/lbs VS. 7.23Wh/lbs of Group 31 AGM Battery)
3. 10 Years Lifetime & 5 Years Warranty
4. EV Grade A LiFePO4 Cells, 4000+ Cycles at 100% DOD
5. 100% BMS Protection (over-charging, over-discharging, over-current, over-temperature, and short-circuit protection)
6. 1280Wh of Large Capacity, 1280W of High Output Power
7. 3 Charging Ways & 10X Charging Efficiency & 2X Operating Time
8. Flexible in Series and Parallel (Max 4S4P, up to 20.48kWh)
9. Suitable for RVs/Trolling Motor/Lawnmower/Solar/Home Storage/Off-grid
10. Clean/Eco-friendly/Cost-effective
11. Fast Delivery & Excellent Online Service
    
12. Low TCO & Zero Maintenance Fee
13. Certified by UL, FCC, CE, ROSH, UN38.3

Part 6. Lonic Lightweight  Lithium 12V 50Ah LiFePO4 Deep Cycle Battery for Trolling Motor

• Product: Lonic Lithium 12V 50Ah | LiFePO4 Deep Cycle Battery + Bluetooth
• Brand: Ionic
• Model: IC-12V50-EP4S
• Price: $349.00
• Weight: ‎16.5lbs (7.5kg)
• Voltage: 12 V
• Capacity: 50ah
• Power Type: LiFePo4
• Dimensions: 7.7″ (L) x 6.5″ (W) x 7″ (H); 178x165x196mm

1. 2-4x The Service Life (3000-5000 cycles)
2. 70% Lighter (than gel batteries or your typical traditional lead acid battery) & More Compact
3. 5x Faster Charging
4. Zero Maintenance
5. 2x The Power
6. Great for trolling motors, RVs, floor sweepers, lift gates, UPS systems, solar panels/solar energy storage, & more
7. Bluetooth technology allows battery status monitoring in real time
8. Advanced Battery Management Systems (BMS) with power terminal cut-off & recovery
9. Built-in cold weather protection – Does not take a charge if temperatures are below -4C or 24F in our case. Some variations with part tolerances.
10. Cell balancing & low voltage/over voltage protection
11. Short-circuit protection
12. Plug & play ready – easy drop in replacement
13. Connect up to four in series & unlimited in parallel
14. Energy efficient w/ 99% Depth Of Discharge (DOD)
15. Outstanding 11 year warranty for ultimate peace of mind
16. Most compatible with Ionic, Noco Gen Pro, Dual Pro PS/ Auto, Minn Kota Precision, Pro Mariner/Pro Tournament Elite, Stealth, Troll Bridge DC, & Power Pole chargers

Part 7. Dakota Light Weight 12v 60ah Deep Cycle Starter Trolling Motor Battery

• Product: DL+ 12V 60AH DUAL PURPOSE 1000CCA STARTER BATTERY PLUS DEEP CYCLE PERFORMANC
• Brand: dakota
• Model: DL+ 12V 60Ah
• Price: $599
• Weight: ‎16.5 lbs (7.5 Kg)
• Voltage: 12V
• Capacity: 60Ah
• Power Type: LiFePO4
• Dimensions: 9.5”x 6.9”x 7.44” (242.5x176x189mm)

About the Battery：

A multi-purpose work horse, the DL+ 12V 60Ah is built for high performance in the most rugged and varied of conditions. Start your car engine, crank up the car audio, or run your trolling motor or other deep cycle electronics — this is one battery built to power many passions.

Engineered with Lithium Iron Phosphate (LiFePO4) technology this battery has twice the power, half the weight, and lasts 8 times longer than a lead acid battery – providing exceptional lifetime value.

Built for dual purpose performance the DL+ provides 1,000 cold cranking amps (CCA) and a high continuous discharge rate, making it a great choice for high amp draw applications like starting engines, car audio, heavy machinery, golf carts, as a car battery, or any electronics that require a lot of power at one time.

In addition, the DL+ provides the same legendary deep cycle marine performance that Dakota Lithium batteries are known for, giving you lots of power for a long time.

This is the most versatile Dakota Lithium battery and includes a terminal adapter kit compatible with most marine, automotive, and deep cycle applications. Easily link in series to create 24V, 36V, or 48V systems. LiFePO4 charger included.

Backed up by an 11 year warranty.

Part 8. Banshee Light Weight Lithium Deep Cycle Marine Trolling Motor Battery

• Product: Banshee Lithium Deep Cycle Marine Trolling Motor Battery Group 27
• Brand: Banshee
  
• Price: $692.55
• Weight: ‎18.8 lb
• Voltage: 12V
• Capacity: 70Ah
• Power Type: Lithium-Iron Phosphate (LiFeP04)
• Dimensions: L – 12 x W – 6.81 x H – 7.87

About the Battery：

Banshee Batteries Group 27M, new Super lightweight Lithium ion LifePo4 battery is 1/3 the weight and has 3xs the life.

Here are the Highlights:

1. CCA – 900, If you’re boating or fishing and 900CCA won’t get you started, it’s too cold to be boating or fishing. Go Home.
2. Dual Terminal Marine Posts – Yes, real dual terminal marine posts – just like every other marine battery made since 1930. No need for adapters.
3. Lightweight – Weighs 60% less than typical AGM or Lead batteries.
4. Extended Life Cycle – lasts 3X longer than AGM or SLA batteries.

Additional Features/Details

• High power BMS “Battery Management System” – This will protect the battery from being over-charged, discharged or even short-circuiting. The feature regulates the amount of power being utilized and serves as an automatic shut-off system to protect the Lithium-Ion LiFeP04 cells. This also serves as a safety precaution if/when operating under unsafe conditions.
• Patent Pending Dual Marine Posts – Made of the highest quality fine copper to increase the unit’s starting ability.
• Extreme Light Weight – Weighs only 18.8 lb compared to most group 27 batteries which can weigh up to 53.8 lb.
• Carrying Handle – Handle For Easy Carrying
• Superior Cranking Power – Up to 70% more cranking power than other products
• Extended Cycle Life – Lasts up to 3Xs longer than standard SLA batteries
• Completely Sealed – Can be installed in any direction or position
• Low Self Discharge – Able to start with extended periods of storage
• Green Energy – Non toxic, no acid, no lead, environmentally friendly

Part 9. FAQs

1. What is the lightest trolling motor battery type?

LiFePO4 lithium batteries are the lightest option, often weighing 60–70% less than AGM batteries with similar capacity.

2. Are lightweight deep cycle batteries better for trolling motors?

Yes. They provide longer runtime, faster charging, and significantly reduced weight compared to traditional lead-acid batteries.

3. How long does a lightweight marine battery last?

Lithium batteries typically last 8–10 years with 3,000–5,000 cycles, while AGM batteries last significantly less.

4. What is the best battery for trolling motors marine use?

LiFePO4 batteries are generally considered the best due to their efficiency, weight savings, and deep discharge capability.

5. Does trolling motor battery weight affect performance?

Yes. Lighter batteries improve boat handling, speed efficiency, and portability—especially in kayaks and small boats.