24V 420Ah Service Battery

A solid-state battery contains no liquid electrolyte, making it completely non-flammable and eliminating fire or thermal runaway risks. It is also significantly lighter and offers higher energy density than traditional lithium iron phosphate (LiFePO4) batteries.

This battery is in the standard Group 8D format. Thanks to semiconductor technology, it weighs up to 50% less than a conventional lithium battery and 75% less than a lead-acid battery of equivalent capacity.

With a capacity of 420Ah at 24V, this battery stores approximately 10 kWh of energy. It is an ideal solution for large house battery banks, powerful bow thrusters, or electric propulsion on catamarans and sailboats.

Yes, these batteries can be connected in series and parallel. The Battery Management System (BMS) allows configurations up to 2S4P (2 in series and 4 in parallel), enabling the creation of 48 V battery banks with very high capacity.

Absolutely. Although designed for deep-cycle (service) use, it delivers ample power to start heavy marine engines.

The terminals use M8 bolts. It is imperative to use a torque wrench and apply a tightening torque between 10 and 12 Nm. Hand tightening or incorrect tightening can damage the terminals and void the warranty.

Yes, semiconductor technology offers excellent thermal tolerance. The battery accepts charging and discharging down to -20°C (-4°F) without requiring internal heating pads, and can operate safely up to 70°C.

The integrated BMS provides multiple automatic protections to ensure safety on board:

Shutdown on overvoltage (above 29.4V)Shutdown on undervoltage (below 17.64V)Short-circuit protection (up to 1000A for 2 ms)Protection against extreme temperatures

You can use a standard marine charger with a lithium battery charging profile. The charging voltage must be set to 29.4V (with a tolerance of ±0.6V). The BMS then manages passive cell balancing.

The battery has built-in Bluetooth connectivity. Simply download the free SSM BATTERY MONITOR HP app available on iOS and Android. The app lets you view real-time charge state, voltage, current, and temperature of your batteries.

Yes, depending on the variant selected at purchase, the battery may be equipped with advanced communication protocols such as NMEA 2000, CAN bus, RS-485, or direct compatibility with Victron systems. This allows displaying data directly on your chartplotter.

It is recommended to fully charge the battery before first use. If the BMS is in protection mode, start by connecting your charger. If the charger does not detect the battery, it may be necessary to jump-start it with a 24V source to wake up the BMS.

The battery has a robust ABS casing with IP67 protection rating, making it fully protected against dust and capable of withstanding temporary immersion in water. However, it is recommended to install it in a dry location, protected from permanent flooding.

For long-term storage, charge the battery between 30% and 80% of its capacity, then disconnect it completely from the system. Store it in a well-ventilated, clean, and dry location. It is recommended to recharge it every 3 to 6 months to avoid deep discharge.

Designed for exceptional longevity in marine environments, this battery delivers a lifespan exceeding 3,000 charge/discharge cycles with an 80% depth of discharge (DoD). This ensures many years of reliable performance aboard.