FoxESS 4.74 HV Battery (Master with BMS)

FoxESS 4.74kWh HV Battery (Master with BMS) – ECS4800 Series

The FoxESS ECS4800 HV Battery is a high-performance, scalable energy storage solution designed for efficiency, reliability, and expandability. As the Master Battery, this unit features a built-in Battery Management System (BMS) to regulate and manage additional slave batteries, creating a modular storage bank with a capacity of up to 33.24kWh.

⚡ Key Features:

✅ 4.74kWh Storage Capacity (Expandable up to 33.24kWh)
✅ Modular & Scalable – Connect up to 7 batteries in series
✅ 90% Depth of Discharge (DoD) – Maximizing usable energy
✅ High Voltage Efficiency – Designed for maximum round-trip efficiency
✅ CAN Communication – Seamless integration with compatible inverters
✅ Easy Plug-and-Play Installation – Reduces setup time
✅ Durable & Reliable – IP65-rated for indoor & outdoor installations

🔋 Technical Specifications:

• Battery Type: LiFePO4 (Lithium Iron Phosphate)
• Nominal Capacity: 4.74kWh per module
• Scalability: Up to 7 modules in series (max 33.24kWh)
• Nominal Voltage: 89.6V (scalable up to 313.6V)
• Operating Voltage Range: 81.2V – 360.6V
• Max Charge/Discharge Current: 50A
• Battery Round-Trip Efficiency: >95%
• Cycle Life: ≥6000 cycles
• Cooling Method: Natural Convection
• Operating Temperature: Charge: 0°C to 55°C | Discharge: -10°C to 55°C
• Installation: Floor-mounted, indoor or outdoor
• Ingress Protection: IP65 (Outdoor Rated)

⚡ Why Choose FoxESS ECS4800?

🔹 Smart Energy Management – The master battery automatically manages connected slave batteries for optimal performance.
🔹 Flexible Expansion – Start with a single unit and expand as needed.
🔹 Built to Last – Over 6000 cycles ensure long-term reliability.
🔹 Advanced Safety Features – Compliance with IEC 62619 & UN38.3 safety standards.

FoxESS High Voltage Batteries – Powering Efficient Solar Storage

FoxESS high-voltage batteries are designed to enhance efficiency, performance, and scalability in solar energy storage systems. With cutting-edge technology, they reduce energy losses, improve charging capabilities, and offer a cost-effective and reliable solution for residential and commercial solar setups.

Key Benefits of FoxESS High Voltage Batteries

⚡ Superior Energy Efficiency

• High-voltage batteries enable more efficient energy conversion, reducing energy losses during the charging and discharging process.
• Paired with FoxESS inverters, they optimize power conversion for maximum system performance.

🔗 Reduced Transmission Losses

• Lower resistance, lower losses – High-voltage systems transmit power with reduced current, minimizing energy loss over longer distances.
• Suitable for both small- and large-scale solar installations.

📈 Scalable & Future-Proof

• Easily expand storage capacity by adding additional battery units.
• Ideal for growing energy demands over time.

🛠 Compact & Space-Efficient Design

• Higher voltage allows for smaller conductor sizes, reducing system footprint.
• A perfect fit for installations with limited space.

⚡ Fast Charging & High Performance

• Supports rapid energy capture from solar panels during peak sunlight hours.
• Enables high charge rates from the grid, ensuring quick energy availability.

🔥 Reduced Heat Generation & Longer Lifespan

• Lower current flow means less resistive heating, enhancing battery lifespan and safety.
• Improves the reliability and longevity of the entire solar system.

🔌 Optimized for FoxESS Inverters

• High-voltage batteries are perfectly matched with FoxESS inverters for seamless integration and peak efficiency.

💰 Cost-Effective & Reliable

• Lower conductor costs, reduced losses, and improved efficiency contribute to long-term savings.
• While initial costs may be slightly higher, operational savings make these batteries a smart investment.

🔄 Flexible System Integration

• Adaptable to different system sizes and configurations.
• Compatible with all FoxESS inverters, making system expansion easy.

🔋 Improved Reliability & Energy Security

• Ensures stable power availability for critical applications.
• Ideal for off-grid and backup power solutions, providing peace of mind.

The Future of Solar Storage

FoxESS high-voltage batteries are an integral part of sustainable and resilient energy solutions. By improving energy efficiency, scalability, and system reliability, they support the transition to a cleaner, more independent power system.