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Fronius Reserva Battery BMS (Incl. Base) - 519100001620

Product number:
In stock Delivery by 02.10.2026
With the Fronius Reserva Battery Management System (BMS), you can optimize the storage of solar energy. This modular system, with a nominal voltage of 102.4 V and a capacity of up to 15.79 kWh, is the perfect complement to your Fronius hybrid inverters for achieving maximum performance.
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Collection possible from our Karlsruhe site (Wikingerstraße 10), Mon–Fri 09:00–12:00 and 13:00–17:00
3150Battery Nominal Capacity (Wh)
10Product Warranty
15.8Maximum Storage Capacity per Tower

Fronius Reserva Battery Management System (BMS)

Type

  • Battery Management System

Nominal Voltage

  • 102.4 V

Usable Capacity

  • Up to 15.79 kWh

Compatibility

  • Fronius hybrid inverters (except Fronius Symo Hybrid)

The Fronius Reserva Battery Management System (BMS) is the heart of the highly efficient DC-coupled high-voltage battery designed to store solar energy with minimal losses.

It is perfectly matched to Fronius hybrid inverters and allows for flexible expansion with two to five modules.

The BMS enables parallel operation of up to 4 battery towers, with the maximum output current limited to 32 A. The system is suitable for indoor and protected outdoor installation.

Advantages

High Efficiency & Performance

Highly efficient DC-coupled high-voltage battery for storing solar energy with minimal losses.

Flexibly expandable

Expandable with 2 to 5 battery modules for usable capacities of up to 15.79 kWh.

Weather-resistant housing

IP65-Protection rating allows for installation indoors and in sheltered outdoor areas at temperatures ranging from -20°C to +55°C.

Full control & safety

Secure and intelligent energy management via RS485-interfaces and a 10-year warranty.

Technical Specifications

Specifications Fronius Reserva
Type Battery Management System (BMS)
Usable Capacity (Single Module) 3.15 kWh
Nominal Voltage (Single Module) 102.4 V
Max. Output Current 32 A
Interface RS485
Weight 16 kg
Dimensions (H x W x D) 330 x 772 x 176 mm
Protection class IP65
Battery chemistry Lithium iron phosphate (LFP)
Certifications IEC62619:2022; CE VDE 2510-50; IEC62477-1; UN38.3

scope of delivery

  • 1× Fronius Reserva Battery Management System (BMS)
  • 1× Fronius Reserva Base

Downloads

Technical Informations

Manufacturer information (GPSR)

Manufacturer

Fronius International GmbH

Froniusstraße 1

4643 Pettenbach

Austria

contact@fronius.com

Disposal of waste electrical and electronic equipment

Electrical appliances do not belong in household waste. You can return old appliances free of charge to municipal collection points or register them with us for take-back. The crossed-out wheelie bin means the appliance must be collected separately.

More information on take-back


Returning batteries and rechargeable batteries

Batteries and rechargeable batteries do not belong in household waste. You are legally obliged to return used batteries — free of charge to us, to retailers or to municipal collection points. The crossed-out wheelie bin stands for separate collection; Pb means lead, Cd cadmium, Hg mercury.

Note: This product contains lithium batteries. Please follow the special instructions for safe handling and disposal — do not open, do not short-circuit, tape over the terminals before returning.

Battery information and returns

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