EcoFlow Delta Pro Ultra X Extra Battery 6.1 kWh LFP

The EcoFlow Delta Pro Ultra X Extra Battery is a high-capacity LFP (LiFePO4) battery designed to expand the energy storage of your EcoFlow DELTA Pro Ultra system. With a rated capacity of 6144 Wh (6.144 kWh) and a nominal voltage of 51.2V, this modular battery seamlessly integrates with the DELTA Pro Ultra Inverter to provide reliable backup power for home, off-grid, or professional use. Its stackable design allows you to connect up to 5 batteries per inverter, achieving a maximum system capacity of 90 kWh when paired with three inverters.

Advantages

Built with advanced LFP chemistry, this battery offers exceptional cycle life of 3500 cycles to 80%+ capacity, ensuring long-term durability and value. The integrated Battery Management System (BMS) provides comprehensive safety protections including over-voltage, under-voltage, over-current, over-temperature, under-temperature, and short-circuit protection. With an IP65 rating when connected to the inverter, it is resistant to dust and water ingress, making it suitable for indoor and outdoor installations. Active fan cooling maintains optimal operating temperatures, while the CAN Bus communication port enables intelligent monitoring and control.

Suitable for

• Home backup power systems
• Off-grid solar energy storage
• Professional and industrial applications requiring scalable power
• Emergency preparedness and disaster relief

Key specifications

• Battery Chemistry: LFP (LiFePO4)
• Rated Capacity: 6144 Wh (6.144 kWh)
• Nominal Voltage: 51.2V
• Cycle Life: 3500 cycles to 80%+ capacity
• Max. System Capacity: 90 kWh (with 3 DELTA Pro Ultra Inverters)
• Compatibility: EcoFlow DELTA Pro Ultra Inverter
• Charging Temperature Range: 0°C to 45°C (32°F to 113°F)
• Discharging Temperature Range: -20°C to 45°C (-4°F to 113°F)
• IP Rating: IP65 (when connected to inverter)
• Communication Port: CAN Bus
• Cooling Method: Active Fan Cooling
• Warranty: 5 Years
• Housing Material: Aluminum Alloy, PC
• Max. Parallel Batteries: 5 per inverter (up to 15 total with 3 inverters)

Recommendations

For optimal performance and safety, always use the EcoFlow DELTA Pro Ultra X Extra Battery with the compatible DELTA Pro Ultra Inverter. Ensure proper ventilation and follow the manufacturer's installation guidelines. This battery is designed for expansion; start with one unit and add more as your energy needs grow.