Epoch Batteries — Marine Lithium (LiFePO4) Battery Systems

Epoch Batteries builds the most feature-rich LiFePO4 batteries on the market — every battery ships with self-heating, Bluetooth monitoring, and a robust internal BMS. For boats moving to lithium, Epoch delivers dependable house-bank performance at a price point that's competitive with the best names in marine.

Why Epoch Lithium

Marine lithium installations demand more than a drop-in replacement. Cold-weather charging protection, communication with chargers and inverters, accurate state-of-charge reporting, and proper BMS-protected disconnects are non-negotiable. Epoch's batteries include cold-temperature heaters that activate automatically, Bluetooth diagnostics for every cell, and BMS firmware tested for the realities of marine cycling — deep discharge, partial-state-of-charge use, and high-amperage draws from windlass and thruster loads.

Featured Epoch Categories

• 12V LiFePO4 Marine Batteries — 100Ah, 200Ah, 300Ah, and 460Ah house bank batteries with built-in heating
• Group 31 & GC2 Form Factors — Direct drop-in replacements for AGM and flooded lead-acid
• Communication-Enabled Batteries — Models with CAN and RS-485 for integration with Victron and Mastervolt systems
• High-Capacity House Banks — Parallel-capable configurations for serious cruising and live-aboard use

Complete Lithium System Design & Installation

Going lithium isn't just a battery swap. Existing chargers, alternators, and inverters need lithium-compatible profiles or external regulation. The DC system needs a properly sized BMS-controlled main disconnect, lithium-rated MRBF or Class T fusing, and updated wiring sized for higher continuous loads. Our team designs and installs complete lithium conversions — battery bank, charging sources (AC charger, alternator with external regulator, solar), DC distribution, monitoring, and inverter integration. Contact us for a full lithium system proposal for your vessel.