Sunova eFox-H-50E 5kW Off-Grid Energy Storage System with 5.12kWh Battery

The Sunova eFox-H-50E is a fully integrated off-grid energy storage system designed for applications where reliable standalone power is required. Unlike traditional hybrid inverters, the Sunova eFox-H-50E combines a 5kW off-grid inverter, a built-in 5.12kWh lithium iron phosphate battery, and battery management system into a single mobile enclosure.

This system is suitable for backup power, remote installations, and energy independence where grid availability is limited or unstable.

What the Sunova eFox-H-50E Off-Grid System Is Designed For

The Sunova eFox-H-50E is designed for off-grid and backup applications where loads must be supplied independently of the utility grid. It can accept power from solar panels, the grid, or a generator and supply AC power directly to connected loads.

The Sunova eFox-H-50E is not a grid-feed hybrid inverter and does not export power to the grid. It is intended for standalone operation, backup scenarios, and controlled energy use.

Integrated Battery System in the Sunova eFox-H-50E

The Sunova eFox-H-50E includes an internal 5.12kWh lithium iron phosphate (LiFePO₄) battery operating at a nominal voltage of 51.2V. LiFePO₄ chemistry provides improved thermal stability, long cycle life, and enhanced safety for indoor and mobile installations.

The battery supports a maximum charge and discharge rate of 1C, enabling consistent performance during sustained power usage.

Solar and Charging Capability of the Sunova eFox-H-50E

The Sunova eFox-H-50E supports solar charging with a recommended PV input power of up to 6,000W. A wide MPPT voltage range allows efficient solar harvesting under varying sunlight conditions.

In addition to solar input, the system can be charged from the grid or a generator, providing flexible charging options across multiple operating scenarios.

Power Output and Load Handling of the Sunova eFox-H-50E

The Sunova eFox-H-50E delivers a rated AC output power of 5,000W with a surge capacity of up to 10,000W for 5 seconds. This allows the system to handle startup surges from appliances such as pumps, refrigerators, and power tools.

Pure sine wave output ensures stable operation of sensitive electronic equipment.

Monitoring and User Interface of the Sunova eFox-H-50E

The Sunova eFox-H-50E includes built-in Wi-Fi and RS485 communication for system monitoring and control. Users can monitor system performance, battery status, and power flow through supported monitoring platforms.

The system is designed for ease of use with multiple operating modes to suit different energy requirements.

Sunova eFox-H-50E 5kW Technical Specifications

Battery Specifications

• Battery type: Lithium iron phosphate (LiFePO₄)
• Battery capacity: 5.12 kWh
• Rated battery voltage: 51.2 V
• Battery voltage range: 44.8 – 57.6 V
• Maximum charge rate: 1C
• Maximum discharge rate: 1C

AC Output Specifications (Backup / Off-Grid)

• Rated output power: 5,000 W
• Surge power: 10,000 W for 5 seconds
• Rated output voltage: 220 / 230 / 240 Vac
• Maximum output current: 22.7 A
• Rated frequency: 50 / 60 Hz
• Total harmonic distortion (THDv): <3%
• Output waveform: Pure sine wave
• Output type: AC socket ×2 + terminals

AC Input Specifications

• AC input voltage range: 170 – 280 V
• AC input frequency: 50 / 60 Hz
• AC battery charging current: 30 A (0–80 A adjustable)

Solar (PV) Input Specifications

• Recommended maximum PV input power: 6,000 W
• Maximum PV input voltage: 450 V
• MPPT voltage range: 120 – 430 V
• Maximum battery charging current from PV: 100 A

Physical and Environmental Specifications

• Dimensions (W × H × D): 585 × 611 × 230 mm
• Weight: 67.6 kg
• Cooling method: Fan cooling
• Operating temperature range: 0°C to 55°C
• Storage temperature range: –15°C to 60°C
• Humidity: 5% – 95%
• Enclosure protection rating: IP20
• Communication: Wi-Fi / RS485