The EcoFlow DELTA Pro 3 is a 4,096Wh LiFePO4 power station with a 4,000W inverter and both 120V and 240V output, strong enough for a 3-ton central AC (with soft starter) or a 1 HP well pump. It rolls on wide wheels, runs quietly, switches over in 10ms as a UPS and connects in parallel for up to 12,000W.
Available configurations
Key features
- 4,096Wh LiFePO4 battery, expandable with extra batteries
- 4,000W output with 120V/240V support
- 2,600W solar input through dual PV ports
- 10ms UPS switchover
- Parallel connection for up to 12,000W
- Quiet operation, wheels and app control
Specifications
| Brand | EcoFlow |
|---|---|
| Battery capacity | 4,096Wh |
| Battery chemistry | LiFePO4 |
| AC output | 4,000W, 120V/240V |
| Solar input | Up to 2,600W (dual PV) |
| UPS switchover | 10ms |
| Warranty | 5 years (manufacturer) |
| Ideal for | Home backup, off-grid, RVs and job sites |
| 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.




















