SEAL 36V 105Ah lithium trolling motor battery with marine-optimized BMS and high-capacity prismatic cells for reliable power on freshwater and saltwater.
SEAL 36V 105Ah lithium trolling motor battery with marine-optimized design and multiple charger inputs.
SEAL 36V 105Ah lithium trolling motor battery with marine-optimized BMS and high-capacity LiFePO4 cells for reliable power on the water
SEAL 36V 105Ah deep cycle lithium trolling motor battery with premium LiFePO4 cells and marine-optimized design for durable, high-capacity power.
36V 105Ah deep cycle lithium trolling motor battery with marine-optimized BMS for reliable power on freshwater and saltwater.

SEAL™ 36V 105Ah Trolling Motor Battery

AB-36V-105-FN4

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Regular price$3,749.99
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SEAL™ 36V 105Ah Trolling Motor Battery

ABYC® Compliant

SEAL™ 36V 105Ah Trolling Motor Battery

5-year free replacement warranty

SEAL™ 36V 105Ah Trolling Motor Battery

IP67 Water Rating

SEAL™ 36V 105Ah Trolling Motor Battery

UN/DOT
38.3 Hazmat 
Approved

The World’s First Lithium Marine Battery with Built-In Fire Suppression

The SEAL™ 36V 105Ah Deep Cycle Lithium Battery isn’t just another power source — it’s a breakthrough in marine battery safety and performance. Engineered with A-grade LiFePO4 prismatic cells and a smart, marine-optimized Battery Management System (BMS), this high-capacity powerhouse delivers unwavering performance whether you’re charging through wind-blown bays or navigating offshore chop.

But here’s what sets it apart: the SEAL™ is the first lithium marine battery in the world to feature an integrated fire suppression system. While others ignore the elephant in the bilge — lithium fire risk — we built a solution directly into the battery. This self-contained, automatic suppression system is designed to detect abnormal thermal events and neutralize potential fire threats before they start, giving anglers, OEMs, and dealers peace of mind that no competitor can offer.

Say goodbye to heavy 3x 12V lead or lithium setups. This single 36V solution drastically reduces weight, installation time, and clutter, while boosting overall system efficiency. It’s fully sealed, saltwater rated, and built for the real world — not the showroom.

Whether you’re a tournament angler running a high-output trolling motor or a boat builder looking for scalable, safe lithium integration — this is your no-compromise solution.

Power Smarter. Fish Longer. Stay Safer.
SEAL™ 36V 105Ah — When the mission matters, trust the battery that thinks ahead.

Trolling Motor Battery
Model FM3 FN4
Cell Type LiFePO4
Rated Capacity 100Ah 105Ah
Rated Power 2.56kWh 4.03kWh
Rated Voltage 25.6VDC 38.4VDC
Charging Voltage 28.4VDC 42.6VDC
Recommended Charging Current 50.0A 52.5A
Maximum Charging Current 100A 100A
Continuous Discharge Current 100A 100A
Maximum Discharge Current 100A 100A
Low-voltage Protection 23.2VDC 34.8VDC
Cell Operating Temperature (Charging) 2~60 (35.6~140) 2~63 (35.6~145.4)
Cell Operating Temperature (Discharging) -20~60 (-4~140) -30~63 (-22~145.4)
Storage Temperature Range (<1 Month) -20~45 (-4~113), 20%~80% SOC, <65% RH
Storage Temperature Range (<6 Months) -20~35 (-4~95) , 20%~80% SOC, <65% RH
Operating Humidity Range 10%~90% RH
Dimensions(L x W x H) 460 x 245 x 220mm 460 x 245 x 295mm
Weight 26.0kg (57.32Ib) 33.5kg (73.85Ib)
IP Protection IP67
Certifications CE, FCC, UN38.3
Shipping Class UN3840
Cycle Life 1、>3000 (0.5C charge and dischargeDoD100%@25 / 77)
2
4000 Cycles (80% DOD, 80% EOL, 0.5C, 25°C / 77)
Built-in Heating Device YES
Parallel Connection NO
Display Unit X3

 High-Capacity, Long-Lasting Power

  • 105Ah capacity with up to 4000 charge cycles at 80% DoD.

  • Maintains consistent voltage from 100% to 10% SOC—no power sag like AGM or lead-acid.

 Integrated Smart BMS

  • Advanced software and hardware protections against overvoltage, overcurrent, overheating, and more.

  • CAN communication for real-time diagnostics and app-based monitoring via the X3 Display.

 Extreme Environment Ready

  • Built-in heater activates in sub-zero temps for safe charging below 0°C.

  • Operates from -30°C to 63°C (-22°F to 145°F) with automatic thermal management.

 True IP67 Waterproof Protection

  • Fully sealed with reinforced screws, gaskets, and waterproof structure.

  • Rigorously tested for marine-grade durability.

 Next-Level Safety

  • Built-in thermal aerosol fire suppression and pressure relief valve.

  • SAE & UL1500-tested pre-installed circuit breaker.

 Easy Plug-and-Play Installation

  • Patented quick-connect terminals and vibration-resistant custom cables.

  • Pre-wired harnesses simplify charger and accessory integration.

 Sleek, Compact, and Lightweight

  • At just 73.85 lbs, it's up to 150 lbs lighter than three lead-acid batteries.

  • Low-profile design fits tight compartments with ease.

  • SHARK® DC-DC Charger: Recharge while underway using your outboard engine.

  • MANTA® MPPT Solar Charger: Keep your battery topped up off-grid with high-efficiency solar input.

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Quick-Connect Terminal Design

Easy Plug-and-Play Installation

Power That Thinks Ahead.

Patented quick-connect terminals, vibration-resistant custom cables, built-in circuit breaker, and Pre-wired harnesses simplify charger and accessory integration.

Meet the next evolution in marine battery systems. The SEAL™ is more than just a battery — it’s an intelligent, integrated energy ecosystem built to handle the extreme demands of 24V and 36V trolling motors.

Dual-layer protection

Comprehensive Safety

Advanced Battery Management System (BMS)

Our BMS is expertly designed for fishing applications, featuring ultra-low power consumption of just 30µA to extend fishing sessions and optimize battery efficiency. ±0.1A precision shunt enables meticulous SOC calculation and calibration, while advanced algorithms ensure accurate power management.

Multi-layered software and hardware protection guard against over-voltage, over-current, and overheating, with multi-channel temperature control ensuring safety during maritime activities.

A built-in pressure relief valve promptly releases excess pressure, complemented by a fire suppression device to address internal battery overheating, ensuring comprehensive safety.

True IP67 Complete Protection: More than just glue adhesion, this new case design incorporates fastening screws, sealing strips, and a specialized waterproof structure. The entire unit undergoes rigorous airtight testing, ensuring reliable and stable performance in both saltwater and freshwater environments.

One Integrated System. Unlimited Power.

Go All In. One System. One Brand. One Source of Power.

The INFINITE™ SERIES by Abyss Battery® is the next evolution in marine power. Designed from the ground up to provide a complete, intelligent, and reliable ecosystem for your trolling motor setup, this system includes the Seal Battery, Shark Charger, and Crystal X3 Monitor— engineered to work seamlessly together.

Whether you're a serious angler or a weekend warrior, this lineup delivers unparalleled safety, real-time visibility, and plug-and-play simplicity to keep you focused on what matters: the water.

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