Photo from the manufacturer
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EcoFlow DELTA Pro 3 is a power station built to stay at home rather than travel: it moves on wheels, with an extendable handle, but its natural place is near the electrical panel. It grows with more extra batteries when the starting capacity isn't enough anymore, and it recognizes a power outage on its own, switching to the battery fast enough that whoever's using it doesn't notice.
To use it as a reserve for a whole home system, a properly installed transfer switch is needed: without one, it shouldn't be connected to the home's electrical system. It also pairs with a microinverter to store the solar panels' excess energy and return it at night or during a blackout, or with a dedicated management panel that switches the home's power from the grid to the battery on its own when needed.
Besides the outlet and the sun, it also charges from a generator or an electric car charging station. Through its energy management hub, it also talks to thermostats, outlets and light bulbs from other brands. It's built for anyone who wants a fixed reserve able to carry much of the home through a long blackout; anyone looking for something to load into the car for a weekend will find more weight here than needed.
official manufacturer list price — on nominal capacity
| Parameter | Value | Source |
|---|---|---|
| Dimensions | 41.0 × 34.1 × 69.3 cm (16.2 × 13.4 × 27.3 in) | manufacturer website |
| Weight | 51.5 kg (113.5 lb) | manufacturer website |
| Nominal capacity | 4.096 kWh | Declared by the brand |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Expandable | Yes | Declared by the brand |
| Maximum expanded capacity | 12 kWh | Declared by the brand |
| Continuous output | 4000 W | Declared by the brand |
| Peak output | 8000 W | Declared by the brand |
| AC outlets | 5 | Declared by the brand |
| Fastest USB-C | 100 W | Declared by the brand |
| 0–80% charge time | 60 min | Declared by the brand |
| Maximum solar input | 2600 W | Declared by the brand |
| Backup power | UPS | Declared by the brand |
| Switchover time | 10 ms | Declared by the brand |
| Rated cycles | 4000 cicli | Declared by the brand |
| Capacity at end of cycle life | 80 % | Declared by the brand |
| Warranty | 5 anni | Declared by the brand |
| Ingress protection | IP65 | Declared by the brand |
| Mounting | Portable | Declared by the brand |
| Noise level | 30 dB | Declared by the brand |
| Wheels and handle | Yes | Declared by the brand |
| Official list price | 3299 € | Declared by the brand |
| Usable capacity | — | Not declared |
| Depth of discharge | — | Not declared |
| Cell supplier | — | Not declared |
| Peak duration | — | Not declared |
| Maximum charge power | — | Not declared |
| Guaranteed throughput | — | Not declared |
| Guaranteed remaining capacity | — | Not declared |
| Round-trip efficiency | — | Not declared |
| Standby consumption | — | Not declared |
| Minimum temperature | — | Not declared |
| Maximum temperature | — | Not declared |
| Cell heating | — | Not declared |
| Works without internet | — | Not declared |
| Local control | — | Not declared |
| Open protocols | — | Not declared |
| Home Assistant integration | — | Not declared |
| Where the data is hosted | — | Not declared |
| Remote updates | — | Not declared |
| App required for setup | — | Not declared |
| Declared standards | — | Not declared |
The rest of the data comes from 2 pages on the manufacturer's site, cited row by row in the table above.
A manual or a datasheet counts as a source even when the original file is hosted elsewhere: what matters is the document, not the server. Where that happens, it is stated above.
These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.
Chosen by the declared use tier and footprint, not by price: we don't publish prices.
