Abyss Battery 12V 120Ah Dual Purpose Lithium Marine Battery - AB-12V120-BT

• Heavy-duty dual-purpose performance – Designed to function as both a reliable engine starting battery and a deep-cycle power source, eliminating the need for separate battery banks in many marine setups.
• High-capacity lithium upgrade – 120Ah usable energy in a compact Group 24 footprint delivers significantly more runtime for onboard electronics, trolling systems, and accessories compared to traditional AGM batteries.
• Powerful cranking capability – Up to 1200A peak discharge provides strong, dependable starts for outboard engines even under demanding offshore conditions.
• Advanced LiFePO₄ efficiency – Stable voltage delivery and high usable depth-of-discharge ensure consistent performance throughout the entire charge cycle.
• Bluetooth smart monitoring – Integrated BMS with app connectivity allows real-time tracking of state of charge, voltage, temperature, and system health for smarter power management.
• Marine-grade durability – IP67 waterproof sealing, vibration resistance, and reinforced internal cell structure ensure long-term reliability in harsh saltwater environments.
• Long lifecycle value – Engineered for thousands of cycles, drastically reducing replacement frequency and lowering total cost of ownership over time.

Q: What is the Abyss Battery 12V 120Ah Dual Purpose Lithium Marine Battery used for?
A: It is a high-capacity LiFePO4 marine battery designed for both engine starting and deep-cycle use in boats, powering trolling motors, electronics, and onboard systems.

Q: What does “dual purpose” mean in the AB-12V120-BT?
A: It means the battery can deliver strong cranking power for starting marine engines while also providing long-lasting deep-cycle energy for accessories and trolling motors.

Q: Is this battery suitable for trolling motors?
A: Yes, it is ideal for 12V trolling motors and provides extended runtime with stable voltage output for consistent performance on the water.

Q: What are the benefits compared to lead-acid batteries?
A: It is lighter, lasts significantly longer (3000+ cycles), charges faster, provides nearly full usable capacity, and requires no maintenance.

Q: Does it support Bluetooth monitoring?
A: Yes, the built-in Bluetooth BMS allows real-time tracking of state of charge, voltage, temperature, and usage via a mobile app.

Q: Can it be used as a starting battery?
A: Yes, it is engineered for reliable engine starting while also supporting deep-cycle marine applications.

Q: What charging system is recommended?
A: A lithium-compatible charger with a LiFePO4 profile (typically 14.4V–14.6V) is recommended for safe and optimal charging performance.

• Use a 14.4V LiFePO4-compatible charger only (no lead-acid mode)
• Avoid deep discharge below 10V cutoff to protect BMS
• Keep operating charge range at 0°C to 55°C for safe charging
• Store battery at 20–60% charge in cool, dry conditions (-5°C to 45°C)
• Fully recharge after marine trips to maximize cycle life (3000–6000 cycles potential)
• Do not leave at 100% charge for long periods during storage
• Keep terminals tight, clean, and corrosion-free (especially marine salt exposure)
• Use Bluetooth app to monitor voltage, temperature, SOC, and health status
• Avoid overload beyond 200A continuous discharge limit
• Ensure proper ventilation in enclosed boat compartments during heavy use
• Protect from physical shock, vibration, and direct saltwater spray exposure (IP67-rated but not abuse-proof)
• Do not open or modify the internal BMS system
• Disconnect from boat system during long storage to prevent parasitic drain