About This Product

The Fronius 6.31kWh Single & Three Phase Reserva Module AUS-NZ is a high-voltage, DC-coupled lithium iron phosphate battery storage solution designed for use with compatible Fronius GEN24 Plus hybrid inverters. It stores excess solar generation directly on the DC side of the system, helping reduce conversion losses compared with AC-coupled battery arrangements. This model provides 6.31kWh of usable storage capacity and is suitable for Australian and New Zealand residential solar battery installations where Fronius inverter compatibility is required.

Who This Product Suits

The Fronius 6.31kWh Single & Three Phase Reserva Module AUS-NZ suits homes using a compatible Fronius GEN24 Plus hybrid inverter and wanting to store daytime solar production for later use. It is a good fit for customers who want a Fronius-matched battery system, support for single-phase or three-phase Fronius hybrid inverter setups, and a modular battery platform that can be expanded where the system design allows. It is best suited to professional installation by a qualified solar battery installer.

Specifications Explained

The Fronius 6.31kWh Single & Three Phase Reserva Module AUS-NZ uses lithium iron phosphate battery chemistry, commonly selected for solar storage due to its stable operating characteristics and long-cycle suitability. The Reserva 6.3 configuration provides 6.31kWh of usable capacity and is built as a high-voltage stack using two battery modules. It is DC-coupled for efficient charging from solar, designed to work with Fronius GEN24 Plus hybrid inverters, and supports system expansion within the approved Fronius Reserva range. The system also supports parallel battery operation where configured correctly by the installer.

Summary

The Fronius 6.31kWh Single & Three Phase Reserva Module AUS-NZ is a Fronius-matched battery storage option for compatible single-phase and three-phase GEN24 Plus solar systems. It offers a practical starting capacity for storing excess solar energy, uses LFP battery technology, and is designed as part of Fronius’ integrated inverter and battery ecosystem. For customers already choosing Fronius hybrid equipment, it keeps the battery and inverter platform aligned under one manufacturer.

Further Information From The Manufacturer

Converting solar energy, controlling, distributing and using solar energy – and now also storing solar energy: With the Fronius Reserva, the Austrian provider of solar electronics completes its product portfolio.

The Fronius Reserva is a high-voltage battery with DC coupling that guarantees almost loss-free charging and discharging performance. The storage modules are stacked on top of each other like building blocks as a plug-and-play connection without the need for cabling. The new battery storage system is optimally matched to the two hybrid inverters Fronius GEN24 Plus and Fronius Verto Plus and can therefore be seamlessly integrated into an existing photovoltaic system. The tried-andtested Solar.web app is all that is needed for visualization; no additional software is required. The Fronius Reserva status display also shows the current charge status and indicates if there is a fault.

Bundle Includes:

• 2 x Fronius 3.15kWh Reserva Module AUS-NZ (Stock code 105859)
• 1 x Fronius Reserva BMS AUS-NZ (Stock code 105860)

Weights & Measurements Information

About Fronius

Fronius is a long-established European manufacturer known for high-reliability inverters used in residential and commercial solar systems. Founded in 1945 and still family-owned, the company designs and builds its inverters with a strong focus on durability, serviceability and long-term product support.

Fronius is recognised in the industry for its active cooling approach, robust monitoring platform and strong technical presence in Australia. Their inverter platforms are widely used by installers who prioritise performance, clear diagnostics and long service life.