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Abyss Battery

Abyss Battery 24V 75Ah Lithium Trolling Motor Battery - AB-24V75-BT

Abyss Battery 24V 75Ah Lithium Trolling Motor Battery - AB-24V75-BT

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Abyss Battery 24V 75Ah Lithium Trolling Motor Battery - AB-24V75-BT

Tired of having to constantly recharge your trolling motor battery? What about that lingering fear of your battery dying in the middle of your fishing trip?

Swap your unreliable trolling batteries for a powerful . This single group 31 battery is compact, lightweight, and frees up storage space by replacing two 12-Volt Lead-Acid or AGM group 31 batteries in series.

Whether you’re trolling in calm weather or fighting the wind, this battery will back you up even with load-heavy consumption. Ideal for deep cycle applications in diverse marine environments, seasons, and temperatures, The 24V 75Ah gives you a long and steady draw to last even for multi-day fishing trips. Just set it, charge it, and off you go. Tight lines!

What our Experts Think
  • Optimized 24V high-capacity performance – Engineered as a 75Ah LiFePO₄ trolling motor battery, delivering stable voltage and consistent thrust for extended on-water runtime in demanding marine conditions.
  • Drop-in upgrade for lead-acid systems – Replaces dual 12V Group 31 batteries in series, reducing weight, simplifying wiring, and freeing up valuable onboard storage space.
  • Strong continuous discharge capability – Built to handle high-load trolling motors with up to 75A continuous output and 600A peak bursts, ensuring reliable performance under sudden thrust demands.
  • Bluetooth smart monitoring included – Integrated BMS with app connectivity provides real-time insights into charge status, temperature, cycle health, and system diagnostics.
  • Marine-grade durability – IP65-rated sealed construction resists water ingress, vibration, and saltwater exposure for dependable offshore and freshwater use.
  • Long-cycle lithium efficiency – Designed for thousands of cycles with high charge/discharge efficiency, significantly reducing lifetime replacement costs compared to AGM batteries.
  • Compact Group 31 footprint – Lightweight ~35 lb design improves boat balance and handling while maximizing usable energy density for longer trips.

Q&A

Q: What is the Abyss Battery 24V 75Ah Lithium Trolling Motor Battery used for?
A: It is a high-capacity LiFePO4 battery designed to power 24V trolling motors and marine electronics with long runtime and stable output.

Q: Is the AB-24V75-BT compatible with trolling motors?
A: Yes, it works with 24V trolling motor systems from major brands like Minn Kota, MotorGuide, Garmin, and other marine setups.

Q: What is the benefit of 75Ah capacity?
A: The 75Ah capacity provides extended runtime on the water, making it ideal for longer fishing trips and higher power demands.

Q: How does it compare to lead-acid batteries?
A: It is lighter, offers nearly 100% usable capacity, charges faster, lasts 3000+ cycles, and requires no maintenance.

Q: Does it support Bluetooth monitoring?
A: Yes, it includes a Bluetooth BMS for real-time monitoring of voltage, state of charge, temperature, and battery health via mobile app.

Q: Can it replace two 12V batteries?
A: Yes, it replaces two 12V lead-acid batteries wired in series, simplifying setup and reducing weight.

Q: What charging system is recommended?
A: A lithium-compatible charger with a 28.8V–29.2V LiFePO4 profile is recommended for safe and optimal performance.

Maintenance Tips
  • Use only a 28.8V LiFePO4-compatible charger (never lead-acid mode)
  • Avoid deep discharge below ~20V cutoff to protect BMS
  • Keep operating charge range between 0°C to 55°C (charging safety window)
  • Store at 40–60% charge in cool, dry conditions (-5°C to 45°C)
  • Recharge after each trip to maintain cycle life (3000–6000 cycles potential)
  • Do not leave battery at 100% charge for long storage periods
  • Keep terminals tight, clean, and corrosion-free (marine salt protection is essential)
  • Monitor via Bluetooth app for voltage, temp, and SOC health
  • Avoid exceeding 75A continuous discharge limit
  • Ensure proper ventilation in boat compartments during heavy load use
  • Protect from shock, vibration, and direct water spray (IP65-rated, not submersible-proof)
  • Do not open or modify the internal BMS system
  • Disconnect from system during long storage to prevent parasitic drain
  • Let battery warm before heavy load use in cold conditions (built-in protection may restrict output)