Battery module – FRONIUS – Reserva Pro – 4 kWh – HV
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Moduł bateryjny Fronius Reserva Pro 3,98 kWh
Product details
Reserva Pro
Reserva Pro by Fronius is a series of energy storage systems using lithium iron phosphate (LFP) cells. Usable energy ranges from 11.9–31.9 kWh depending on the model, and parallel operation of up to 4 batteries allows for larger energy storage configurations.
Key benefits of Reserva Pro
- Usable energy 11.9–31.9 kWh — configurations comprising 3 to 8 battery modules, depending on the model.
- Parallel operation of up to 4 batteries — the ability to connect several batteries in a single system.
- Protection rating IP65 — installation indoors and in sheltered outdoor areas.
- Ambient temperature from -20 to +50°C — depending on the temperature, charging and discharging performance may be limited.
- Modbus communication (RS485) and a Stäubli MC4 Evo Stor DC connector.
- 10-year warranty with a provision concerning 80% battery state of health (SOH).
Who is this a good choice for?
Reserva Pro is designed for users of compatible Fronius inverters who need an energy storage system with a capacity tailored to their needs. A choice of module counts and parallel operation of up to 4 batteries allow the configuration to be adapted, while approved installation indoors or in sheltered outdoor areas makes it easier to choose an installation location.
| Parameter | Reserva Pro 12.0 | Reserva Pro 16.0 | Reserva Pro 20.0 | Reserva Pro 24.0 | Reserva Pro 28.0 | Reserva Pro 32.0 |
|---|---|---|---|---|---|---|
| Electrical parameters | ||||||
| Usable energy (kWh) | 11,9 | 15,9 | 19,9 | 23,9 | 27,9 | 31,9 |
| Number of battery modules | 3 | 4 | 5 | 6 | 7 | 8 |
| Rated voltage (V) | 70,84 | |||||
| Operating voltage range (V) | 165 ~ 240,9 | 220 ~ 321,2 | 275 ~ 401,5 | 330 ~ 481,8 | 385 ~ 562,1 | 440 ~ 642,4 |
| Maximum output current (A) | 50 | |||||
| General information | ||||||
| Chemical composition of the battery cell | Lithium iron phosphate (LFP) | |||||
| Parallel operation | Up to 4 batteries | |||||
| Compatible inverters | Fronius Primo GEN24 Plus, Symo GEN24 Plus & Verto Plus | |||||
| DC connection technology | Stäubli MC4 Evo Stor | |||||
| Interfaces | Modbus (RS485) | |||||
| Dimensions and weight | ||||||
| System dimensions (height × width × depth) (mm) | 775 × 579 × 449 | 935 × 579 × 449 | 1,095 × 579 × 449 | 1,255 × 579 × 449 | 1,415 × 579 × 449 | 1,575 × 579 × 449 |
| Total system weight (kg) | 126 | 162 | 198 | 234 | 270 | 306 |
| Operating conditions | ||||||
| Protection rating | IP65 | |||||
| Safety class | II | |||||
| Maximum altitude above sea level (m) | 2,000 | |||||
| Ambient temperature range (°C) | -20 to +50 | -20 to +50 | ||||
| Permissible humidity (%) | 5-95 | 5 - 95 | ||||
| Installation | Indoors and in sheltered outdoor areas | |||||
| Certificates | ||||||
| Certificates and compliance with standards | VDE2510-50 / IEC62619 / IEC62040-1 / CE / RCM / UN38.3 | VDE2510-50 / IEC 62619:2022 / IEC62040-1 / CE / RCM / UN38.3 | ||||
| Warranty | ||||||
| Product warranty (years) | 10 | |||||
| Management system — Reserva Pro BMS | ||||||
| Dimensions (height × width × depth) (mm) | 70 × 579 × 449 | |||||
| Weight (kg) | 8 | |||||
| Communication port between the BMS and the inverter | CAN / Modbus (RS485) | |||||
| Communication port between the BMS system and the module | ISO-SPI | |||||
| Battery module — Reserva Pro Module | ||||||
| Usable capacity (kWh) | 3,98 | |||||
| Rated voltage (V) | 70,84 | |||||
| Module operating voltage range (V) | 55 ~ 80,3 | |||||
| Dimensions (height × width × depth) (mm) | 70 × 579 × 449 | |||||
| Weight (kg) | 8 | |||||
| Base — Reserva Pro Base | ||||||
| Dimensions (height × width × depth) (mm) | 70 × 579 × 449 | |||||
| Weight (kg) | 8 | |||||
The charging and discharging current is limited by the inverter. Depending on the temperature, charging and discharging performance may be limited.

