EcoFlow DELTA Pro Ultra – Complete Whole-Home Battery Backup System for Long-Term Power Security
The EcoFlow DELTA Pro Ultra Home Battery Backup System delivers a reliable, high-capacity power solution for prolonged outages, daily energy management, and off-grid living. Designed for homeowners seeking a true whole-home battery backup, this system provides dependable, silent, and maintenance-free power—far superior to traditional gas generators.
At the core of this system is the EcoFlow DELTA Pro Ultra Inverter, offering 7,200W of continuous AC output and 10.8kW peak output, giving you the ability to run nearly any household appliance, including a 3-ton air conditioner. Each inverter can pair with up to five 6kWh LFP batteries, creating a scalable power stack. When connected to the EcoFlow Smart Home Panel 2, you can integrate up to three inverter/battery stacks for an incredible 90kWh of backup battery capacity—enough power for extended grid outages or full-time off-grid setups.
Smart Home Integration & Advanced Energy Management
With the EcoFlow Smart Home Panel 2, the DELTA Pro Ultra seamlessly ties into your home’s electrical system, enabling:
Automatic switchover during outages
Real-time energy monitoring
Time-of-use optimization for potential electricity bill savings
Instant detection of connected EcoFlow components through the EcoFlow app
Enhance your system further with the EcoFlow PowerInsight Home Energy Manager (sold separately), a touchscreen energy dashboard that displays real-time power usage, warns of approaching severe weather, and monitors all connected appliances.
Expandable Storage & Versatile Charging Options
The DELTA Pro Ultra features a plug-and-play, stackable design, making it easy to expand both storage and output. It supports multiple charging methods, including:
Solar panels (high or low voltage)
Generators, such as the EcoFlow Dual-Fuel Generator
EV charging stations
AC power via the Smart Home Panel 2
This flexibility allows your home battery backup system to adapt to any situation—whether you're preparing for outages or maximizing solar production.
Month-Long Home Power Security
With the ability to scale up to 90kWh of stored energy, the EcoFlow DELTA Pro Ultra provides over 30 days of essential backup power for lighting, refrigeration, and critical home circuits (backup duration may vary). Its compact, stackable design fits neatly in a garage, mechanical room, or utility closet.
Silent, Uninterrupted Backup Power
Equipped with an online UPS, the DELTA Pro Ultra provides zero-transfer-time protection for sensitive electronics. For low loads under 2000W, the system operates at 0 dB, delivering silent nighttime backup—ideal for bedrooms, nurseries, and home offices.
Multiple Charging Methods for Maximum Flexibility
The EcoFlow DELTA Pro Ultra supports a wide variety of recharging methods:
AC power through the Smart Home Panel 2
EV charging stations
Dual-fuel or traditional generators
High-power and low-power solar panel arrays
FREE SHIPPING anywhere in the lower 48 US states.
Key Features – EcoFlow DELTA Pro Ultra Inverter + Batteries
Ultimate home battery backup system with 6kWh LFP battery (expandable to 30kWh per inverter stack)
7.2kW continuous AC output, enough to run most household appliances
Up to 16.8kW solar input (high-PV and low-PV ports)
Automatic switchover & prolonged backup via Smart Home Panel 2
PowerInsight Home Energy Manager compatible
EcoFlow app auto-detects all components via Bluetooth or Wi-Fi
5-year warranty on inverter and battery; 10-year warranty on Smart Home Panel 2