#  Fronius Reserva Battery Manager System 

- **Brand:** Fronius
- **SKU:** FRONIUS-4,240,371-RESERVA-BMS
- **MPN:** 4,240,371
- **Price:** 1,009.00 EUR
- **Availability:** In stock
- **Categories:** Battery Energy Storage

The Fronius Reserva Battery Manager System (BMS) is a central control unit for managing and protecting high-voltage battery storage in photovoltaic systems.

The **Fronius Reserva Battery Manager System (BMS)** is the core control unit of the Fronius Reserva high-voltage energy storage system, designed to manage, monitor, and protect connected battery modules in photovoltaic installations. It ensures optimal charging and discharging processes while maintaining system safety and efficiency.

Built for seamless integration with Fronius hybrid inverters, the BMS enables intelligent energy flow control and supports real-time monitoring through the Fronius Solar.web platform. It plays a key role in maximizing self-consumption and improving overall system performance.

The system supports modular battery configurations, allowing flexible expansion from two to five battery modules and enabling parallel operation of multiple battery systems. Its advanced protection functions—including overvoltage, overcurrent, and thermal protection—ensure long-term reliability and safe operation of the energy storage system.

### **Core Electrical Characteristics**

1. High-voltage DC battery management
2. Supports modular battery systems
3. Optimized charge and discharge control
4. Designed for LFP battery technology

### **Connectivity and Integration**

1. Compatible with Fronius GEN24 Plus hybrid inverters
2. RS485 communication interface
3. Fronius Solar.web monitoring integration
4. Seamless system integration

### **System Performance and Control**

1. Real-time battery monitoring
2. Cell balancing and system optimization
3. Intelligent charge/discharge management
4. Supports parallel battery operation

### **Design and Installation**

1. Compact modular design
2. Dimensions approx. 780 × 360 × 176 mm
3. Weight approx. 25.6 kg
4. Indoor and protected outdoor installation

### **Safety and Compliance**

1. Overvoltage protection
2. Overcurrent protection
3. Short-circuit protection
4. Thermal protection
5. Compliant with IEC standards

### **Typical Applications**

1. Residential photovoltaic storage systems
2. Commercial energy storage installations
3. Hybrid PV systems
4. Energy independence solutions

## Specifications

| Spec | Value |
| --- | --- |
| Weight | 16 kg |
| Cooling | Passive |
| Display | LED status indicator |
| Warranty | 120 months |
| Dimensions | 780 × 360 × 176 mm |
| Monitoring | Fronius Solar.web |
| Battery type | Lithium Iron Phosphate (LFP) |
| Communication | RS485 |
| Compatibility | Fronius Reserva battery modules (2–5 per tower), Fronius GEN24 Plus |
| Certifications | IEC62619, CE, VDE 2510-50, UN38.3 |
| Charging modes | Solar, Grid (via inverter) |
| Battery voltage | High-voltage system |
| Mounting options | Base-mounted system |
| Installation type | Floor-standing |
| Protection rating | IP65 |
| Max charge current | Limited by inverter |
| Parallel capability | Up to 4 battery systems |
| Max discharge current | Limited by inverter |
| Operating temperature | -20°C to +55°C |