Product information

Technical details
Degree of protection (IP) IP65
Allowable relative humidity 5 .. 95 %
Height 360 mm
Width 780 mm
Depth 176 mm
Weight 16 kg
Suitable for outdoor installation Yes
Suitable for indoor installation Yes
Ambient temperature -20 .. 55 °C
Max. depth of discharge 94.5 %
Low Voltage / High Voltage DC
Advantages
  • Integrated battery management system ensures safe and reliable operation of the entire energy storage system.
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  • Modular design supports flexible expansion with multiple battery modules and parallel systems.
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  • RS485 communication enables seamless integration with Fronius hybrid inverters.
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  • Robust IP65 protection and wide operating conditions ensure long-term reliability.
Documents & certificates

Manufacturer information

Fronius International GmbH (Austria) is one of Europe’s leading manufacturers of inverters and energy storage solutions. The Fronius Reserva is a DC-coupled high-voltage battery platform with LFP cells, offering high efficiency, modular scalability (2–5 modules per tower, up to 4 towers in parallel), and full integration with Fronius GEN24 Plus and Fronius Verto Plus inverters.
Certifications: IEC 62619, VDE 2510-50, IEC 62477, UN38.3, CE.
 

Fronius is a well-established Austrian technology company known for its innovation and high-quality products. It operates in three core business sectors: Solar Energy, where they are a leading manufacturer of residential and commercial solar inverters; Perfect Welding, a division that develops advanced welding systems and solutions; and Perfect Charging, which specializes in intelligent battery charging technology for industrial and automotive applications. The company is committed to sustainable solutions and has a strong global presence, with its brand being synonymous with reliability and technological advancement in each of its markets.

Product description

The Fronius Reserva BMS (Base Module) is the control and protection unit for each Reserva battery tower. It enables the connection, monitoring, and management of battery modules (3.15 kWh each) and communicates with Fronius GEN24 Plus / Verto Plus inverters via RS485 (Modbus RTU).

The BMS module includes essential protection functions (e.g., overcharge, deep discharge, and temperature control), LED status indication, and DC connections (4× Amphenol). The system is suitable for indoor and protected outdoor installation (IP65), operates within a temperature range of −20 to +55 °C, and up to 2000 m above sea level.

Each tower configuration (Reserva 6.3 / 9.5 / 12.6 / 15.8) requires one BMS module.