The EcoFlow DELTA Pro Ultra is a whole home backup system built from a 7.2kW inverter and stackable 6kWh LiFePO4 batteries. One inverter supports 6kWh to 90kWh and 120V/240V output strong enough for a 3-ton central AC; three inverters with Smart Home Panel 2 deliver 21.6kW. Each inverter also accepts 5.6kW of solar.
Available configurations
Key features
- 7.2kW continuous 120V/240V output per inverter
- Stackable 6kWh LiFePO4 batteries, up to 90kWh
- 5.6kW solar input per inverter (high and low voltage PV)
- Up to 21.6kW with three inverters and Smart Home Panel 2
- Works with generators and rooftop or portable solar
- Fits in a garage or utility room
Specifications
| Brand | EcoFlow |
|---|---|
| Inverter output | 7.2kW, 120V/240V |
| Battery | 6kWh LiFePO4 per pack |
| Capacity per inverter | 6kWh to 90kWh |
| Solar input | 5.6kW per inverter |
| Maximum system output | 21.6kW (3 inverters + SHP2) |
| Ideal for | Whole home backup, solar storage and multi-day outages |
| Condition | New |
Shipping and returns
Free shipping to addresses in the United States, delivered in 4 to 6 business days (1 to 2 business days to prepare the order plus 3 to 4 business days in transit). Free returns within 30 days of delivery; refunds are issued within 5 business days after the returned item is inspected.
Frequently asked questions
Do I need an electrician to install a whole home backup system?
Systems that connect to your main panel, a smart panel or a transfer switch should be installed by a licensed electrician to meet local code. Plug-in setups that use an inlet box need less work, but a professional check is still recommended.
Can I add more batteries later?
Yes. These systems are modular, so you can start with the capacity you need and add compatible expansion batteries later.
How long does shipping take?
Orders ship free within the United States and arrive in 4 to 6 business days.




















