CMP Marine Lithium Batteries are engineered specifically for boaters who need reliable, high-performance power on the water. Designed for sailboats, fishing boats, cruisers, catamarans, and marine solar systems, our LiFePO4 batteries deliver exceptional performance for house battery banks, engine starting, trolling motors, air conditioning, bow thrusters, electric winches, and other demanding onboard applications.

Built with advanced battery management systems (BMS), our batteries provide outstanding safety with an extremely low fire risk compared to many other lithium chemistries. For added peace of mind on extended offshore voyages, many models feature a replaceable BMS, allowing the battery management system to be easily swapped if needed—a unique advantage for long-distance cruisers.

Monitor your battery's performance anytime with the CMPower 2.0 Smartphone App. View real-time battery status, state of charge, voltage, remaining amp-hours, charging status, temperature, charge cycles, cell voltages, fault alerts, and estimated time to full charge—all from your smartphone. Stay informed and manage your onboard power system with confidence, whether you're at the dock or offshore.

Discover the upcoming CMPower 450Ah LiFePO4 battery featuring semi-solid state cell technology, field-replaceable Daly BMS, Bluetooth monitoring, Victron compatibility, built-in heating, and 300A continuous performance — engineered for demanding marine and off-grid power systems.