FOXESS EQ3300-M High-Voltage LiFePO4 Battery Module 3.3 kWh with BMS Master

High-voltage LiFePO4 battery module with 3.3 kWh nominal capacity and integrated BMS master for residential and commercial solar storage.

Advantages

This module offers a usable capacity of 2.97 kWh at 90% depth of discharge, ensuring efficient utilization of stored energy. With a cycle life exceeding 6000 cycles at 90% DoD and 25°C, it delivers years of dependable service. The integrated BMS master enables seamless communication and control, while the IP65-rated enclosure protects against dust and water ingress, making it suitable for indoor and outdoor installations. Natural convection cooling eliminates the need for fans, reducing maintenance and noise.

Suitable for

• Residential solar energy storage systems paired with FoxESS H1 or H3 series hybrid inverters.
• Commercial energy storage applications requiring scalable high-voltage battery banks.
• Backup power solutions for critical loads during grid outages.
• Installations where space is limited, thanks to the compact and modular design.

Key specifications

• Battery type: Lithium Iron Phosphate (LiFePO4)
• Nominal energy capacity: 3.3 kWh
• Usable energy capacity: 2.97 kWh (90% DoD)
• Nominal voltage: 51.2 V
• Nominal capacity: 65 Ah
• Max continuous charge/discharge current: 30 A
• Peak charge/discharge current: 35 A for 15 seconds
• Communication interface: CAN / RS485
• Ingress protection: IP65
• Operating temperature (discharge): -10°C to 50°C
• Operating temperature (charge): 0°C to 50°C
• Scalability: Up to 7 modules in series
• Cooling: Natural convection
• Certifications: CE, TUV, IEC62619, UN38.3

Recommendations

For optimal performance, pair with FoxESS H1 or H3 series hybrid inverters and ensure proper ventilation around the module. Professional installation by a qualified electrician is required.