Abyss® 48V 125Ah Lithium Deep-Cycle Marine Battery

Description

Silent, high‑voltage power for electric propulsion and true generator‑free living aboard.

Meet the house battery that lets you cruise, anchor, and sleep without the drone of a genset. Built around a 51.2V LiFePO₄ pack and a robust marine BMS, this 6.4 kWh module is purpose‑engineered for electric propulsion and high‑demand DC/AC house loads—then sealed to IP67 so it actually belongs on a boat. It also speaks Victron natively over CAN, so your inverter/charger and GX devices coordinate charge limits and currents automatically for a clean, alarm‑free system.

Why choose this battery?

• Generator replacement: Pair with a Victron inverter/charger and you’ve got quiet AC overnighting, galley loads, and thrusters without burning diesel. Victron‑protocol CAN comms coordinate CVL/CCL during charging and taper current as the pack fills—exactly how it should work on a yacht.
  

• Serious energy density: 51.2 V × 125 Ah = 6,400 Wh in a single module designed for parallel scaling. (Series connections are not supported; keep modules at the same voltage before paralleling.) 
  

• Marine‑ready build: IP67 enclosure, CE/UN38.3 compliant, with integrated BMS protections for over/under‑voltage, over‑current, temperature, and short circuit.
  

• Victron protocol compatible: CANBUS + RS‑485 on board for plug‑and‑play integration with Victron inverters/chargers and GX devices.
  

• Installer‑friendly: Clearly labeled IN/OUT, charger/motor comm ports, remote/wire‑control switch option, and busbar guidance—including fuse and gauge recommendations.

Key specifications 

• Nominal voltage / capacity: 51.2 V / 125 Ah (LiFePO₄); Stored energy: ~6.4 kWh.

• Voltage range: ~40–57.6 V (CC/CV charging at 57.6 V). 

• Charge method/time: CC‑CV; typical full charge ≈ 4.5 h (standard).

• Cycle life: Long‑life deep cycle LiFePO₄ (manufacturer lists multi‑thousand‑cycle performance at 0.5C).

• Enclosure rating: IP67; Certs: CE, UN38.3.

• Dimensions (L×W×H): 650 × 360 × 210 mm; Approx. weight: ≈ 58.5 kg.

•  Comms: CANBUS & RS‑485; Victron protocol compatible. 

• System topology: Parallel‑only expansion; series not supported.

What it powers

• Electric outboards & pods (48 V class)

• Silent nights at anchor: air‑con (with inverter), galley, refrigeration, pumps, lighting

• High‑load DC systems: windlass, bow/stern thrusters (within BMS limits)

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