Abyss Battery 24V 110Ah NMEA 2000 Dual Purpose Lithium Marine Battery - AB-24V110
Built for serious boats and serious engines, the ABYSS BATTERY 24V 100Ah is a true dual‑purpose lithium battery that combines 24‑volt starting authority for large diesel engines with deep‑cycle stamina for today’s power‑hungry electronics. With NMEA 2000 compliance, IP67 marine sealing, and a unique 4‑terminal case that simplifies rigging, it turns your electrical system into a clean, connected, confidence‑building upgrade.
Features
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24V Starting Authority – High‑pulse discharge for large 24V diesel engine starts—with stable voltage delivery for sensitive ECUs and MFD networks. (Verify engine cranking/MCA requirements.)
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True Dual‑Purpose – One bank that confidently cranks engines and runs house loads—radar, CHIRP sonar, MFDs, pumps, lighting, comms, and more.
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NMEA 2000 Smart Integration – View live state of charge, voltage, current, temperature, and status alerts* on Garmin®, SIMRAD®, Raymarine® and other compatible MFDs.
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IP67 Marine Toughness – Dust‑tight and protected against temporary immersion (1 m up to 30 min)—ready for spray, washdowns, and rough seas.
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4‑Terminal Case Advantage – Four posts let you dedicate connections (engine start, house panel, chargers, accessories) without stacking lugs—cleaner installs and fewer voltage drops.
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2.5 kWh Class Capacity – ≈2.56 kWh on board (25.6 V × 100 Ah) for long runtimes without the sag of lead‑acid.
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Advanced BMS Protection – Guards against over/under‑voltage, over‑current, short‑circuit, and temperature extremes; designed with engine‑start‑safe pulse handling.
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Lower Current at 24V – Higher system voltage means less current for the same power, helping reduce cable size and voltage drop on long runs.
What our Experts Think
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Dual-purpose 24V marine power: The ABYSS® AB-24V110 is engineered to handle both starting and deep-cycle house loads, reducing the need for separate battery systems on mid-sized boats.
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Balanced high-capacity output: With 110Ah storage, it delivers reliable runtime for electronics, pumps, lighting, and onboard accessories while maintaining strong performance under load.
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NMEA 2000 smart integration: Built-in compatibility enables real-time data sharing with marine networks, allowing precise monitoring of battery status directly on compatible displays.
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Stable lithium performance: LiFePO₄ chemistry ensures consistent voltage delivery, improving reliability for sensitive navigation and fishing electronics.
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Advanced BMS protection: Integrated system safeguards against overcharge, over-discharge, short circuits, and temperature extremes for safe marine operation.
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Lightweight system upgrade: Replaces heavier lead-acid setups with a compact lithium solution, improving boat efficiency and reducing overall weight.
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Marine-grade durability: Designed for vibration resistance and saltwater environments, supporting long-term offshore use.
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Efficient deep-cycle capability: Maintains stable discharge over extended periods, ideal for trolling, anchoring, and continuous accessory use.
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Long lifecycle advantage: Rated for 3000+ cycles, offering significantly longer service life than traditional AGM batteries.
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Smart boating ecosystem ready: Ideal for users who want a connected, data-driven marine power system with real-time battery insights and dependable dual-function performance.
Q&A
Q: What is the Abyss Battery AB-24V110 used for?
A: A high-capacity dual-purpose 24V LiFePO₄ marine battery designed for both starting large diesel engines and powering onboard house loads like electronics, pumps, lighting, and navigation systems.
Q: What are the key specifications of the AB-24V110?
A: 25.6V nominal voltage, 110Ah capacity (~2.8kWh energy), IP67 waterproof rating, and a marine-grade sealed lithium design built for harsh offshore use.
Q: What does “dual purpose” mean in this battery?
A: It can deliver high cranking power for 24V diesel engine starting while also providing stable deep-cycle power for continuous onboard electrical loads.
Q: Does it support NMEA 2000 integration?
A: Yes, it connects to NMEA 2000 networks, allowing real-time battery data (state of charge, voltage, current, temperature, and alerts) to display on compatible marine chartplotters.
Q: How much power does it store?
A: Around 2.8kWh of usable energy, enabling long runtimes for marine electronics and extended offshore operation.
Q: What is the discharge capability?
A: Up to ~100A continuous discharge with high surge and cranking capability (up to ~1000A peak depending on configuration).
Q: What boats is it best suited for?
A: Offshore and commercial vessels using 24V systems that need a single battery solution for engine starting plus house power management.
Maintenance Tips
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Use correct charging profile: Charge only with LiFePO₄ charger (CC/CV ~28.4–28.8V). Never use lead-acid/AGM settings (causes imbalance and BMS stress).
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Avoid deep discharge: Recharge before ~20–30% SOC to protect cycle life (2000+ full-depth cycles).
- Temperature-safe operation:
- Charge: 0°C to 55°C
- Discharge: −20°C to 60°C
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Monitor via NMEA 2000: Regularly check SOC, amps, voltage, and temperature on your MFD to catch alternator issues, parasitic drain, or overload early.
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Respect load limits: Stay within ~100A continuous discharge; avoid sustained high loads beyond design rating to prevent BMS cutoff.
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Terminal & 4-post system care: Inspect and torque terminals regularly—this battery supports multiple dedicated connections, so loose lugs can cause heat and voltage drop.
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Marine corrosion control: Even with IP67 sealing, rinse salt buildup and keep all connectors dry to prevent resistance buildup.
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Storage best practice: Store at ~50–70% SOC in a cool, dry place; avoid full charge storage in heat.
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Parallel system discipline: Only parallel batteries at equal voltage/SOC to avoid imbalance stress on BMS.
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Engine start safety check: Periodically verify crank readiness and BMS pulse response if used for diesel starting systems.
Damage 
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