Abyss Battery 36V 105Ah Trolling Motor Battery - AB-36V-105-FN4

Abyss Battery 36V 105Ah Trolling Motor Battery - AB-36V-105-FN4

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.

What our Experts Think  

                 
Q&A  

Q: What is the Abyss Battery 36V 105Ah AB-36V-105-FN4 used for?
A: A high-performance LiFePO₄ deep-cycle marine battery designed for 36V trolling motors, delivering stable power, long runtime, and lightweight replacement for 3x 12V systems.

Q: What are the key specifications of the AB-36V-105-FN4?
A: 38.4V nominal voltage, 105Ah capacity, ~4.03kWh energy output, and up to 100A continuous discharge for heavy-load trolling motors.

Q: How does it improve fishing performance?
A: Provides consistent voltage without drop-off, enabling longer trolling sessions, stronger thrust, and reliable spot-lock performance in wind and current.

Q: Does it support Bluetooth monitoring?
A: Yes, integrated Bluetooth BMS allows real-time tracking of SOC, voltage, temperature, and cycle health via mobile app.

Q: What is the lifespan of the AB-36V-105-FN4?
A: Around 3000+ cycles at full depth of discharge and up to 4000+ cycles at partial discharge, significantly longer than AGM batteries.

Q: Is it safe for marine environments?
A: Yes, IP67 waterproof rating, sealed LiFePO₄ chemistry, and advanced BMS protections against overcharge, overheating, and short circuits.

Q: Can it replace lead-acid batteries?
A: Yes, it replaces three 12V AGM/lead-acid batteries in series, reducing weight and increasing usable capacity.

Q: What trolling motors is it compatible with?
A: Works with major 36V systems including Minn Kota, MotorGuide, Garmin Force, Lowrance Ghost, and similar trolling motors.

                 
Maintenance Tips  

• Correct charging: Use only a LiFePO₄-compatible charger set to ~42.6–43.2V; avoid lead-acid modes.
• Avoid deep discharge: Recharge before dropping below ~20–30% to protect cells and BMS health.
• Temperature control: Charge between 0°C–55°C; use built-in heating for cold-weather charging.
• Storage state: Store at ~50–70% charge in a cool, dry environment if unused for long periods.
• Monitor via Bluetooth BMS: Regularly check voltage, SOC, and temperature to detect imbalance early.
• Respect discharge limits: Keep within 100A continuous draw to avoid BMS cutoff or stress.
• Marine care: Rinse salt residue, keep terminals tight (M8), and avoid direct high-pressure water exposure (IP67 protection).
• Regular cycling: Use periodically—LiFePO₄ performs best with active charge/discharge cycles.
• Inspection habit: Check cables, connectors, and mounting vibration points before each trip.