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The BMS and Fronius Reserva base form the heart of the most compact high-voltage solar energy storage system on the market. This modular solution offers a scalable capacity of 6.3 to 15.8 kWh with a depth of only 176 mm.
Key features:
Ideal for maximising residential solar self-consumption with minimal space requirements and exceptional reliability.
Product available to order
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BMS & Base for high-voltage energy storage batteries – Intelligent modular solution
The ultra-compact, scalable solar storage solution that revolutionises your energy independence
Product overview
The Fronius Reserva revolutionises residential solar energy storage with its ultra-flat design and advanced high-voltage technology. This modular battery offers a smart storage solution that adapts perfectly to your energy needs with particularly efficient DC coupling.
At just 176 mm deep, the Reserva system can be easily installed in even the most confined spaces, behind a door or in a small utility room. Its high-voltage technology optimises the profitability of your photovoltaic installation.
Important notice for our customers in Belgium:An environmental contribution of €96.82 excluding VAT will be applied to the purchase of eachFronius Reservalithium battery.
More information at the bottom of the page.
Modularity & scalability
• Capacity: 6.3 to 15.8 kWh
• Up to 4 batteries in parallel
• Flexible expansion
Maximum Efficiency
• High-voltage technology
• Lossless DC coupling
• GEN24 Plus compatible
Enhanced Safety
• Full certifications
• Secure LFP technology
• IP65 protection
Complete range
Technology:Lithium Iron Phosphate (LFP)
Maximum current:32 A (limited by the inverter)
Parallel operation:Up to 4 Reserva batteries
Operating temperature:-20°C to +55°C*
Permissible humidity:5-95%
Maximum altitude:2,000 m
Installation:Indoor and protected outdoor areas
Protection rating:IP65
Interfaces:Modbus (RS485)
DC connection:4x Amphenol
Warranty:10 years
*Depending on the temperature, the charge/discharge capacity may be limited
Fronius now offers a complete ecosystem for 24 hours of sunshine. The Reserva integrates seamlessly with your existing photovoltaic system, with a single point of contact for service and maintenance.
As part of our commitment to regulatory compliance and environmental responsibility in Belgium, we would like to inform our customers that the purchase of a Fronius Reserva lithium battery is subject to a mandatory environmental levy.
An amount of €96.82 excluding VATmust be added to each battery purchased as a direct contribution to Bebat, the organisation responsible for managing batteries and accumulators in Belgium. This measure complies with current Belgian environmental legislation.
Important:When purchasing lithium batteries, please add the corresponding product "Bebat Fronius Reserva environmental contribution" according to the number of batteries you are ordering. Otherwise, we will recalculate and invoice the amount after purchase.
This tax only applies to Belgian customers.
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