Photo from the manufacturer
JouleSpecs does not sell and does not show shop prices: check the price where you buy.
Where to buy
Check the price on AmazonPaid link: the price for you does not change.
As an Amazon Associate I earn from qualifying purchases.
EcoFlow DELTA 3 Plus is a home power station with lithium iron phosphate cells: it has a dedicated port for extra batteries and grows when the starting runtime isn't enough anymore. When power fails it switches to the battery in ten milliseconds, fast enough that whoever's using it doesn't notice.
It charges from the grid, the sun, the car's alternator or a generator, even from several sources at once: if both the sun and the outlet are connected, it uses solar energy first and tops up from the grid only when that isn't enough. While it's connected to the grid and powering whatever's plugged in, current normally passes straight from the outlet to the devices; for equipment more sensitive to power quality, like an amplifier, the app can force battery-only operation.
A USB-C cable connects it to a computer or a NAS so they shut themselves down in an orderly way if the blackout lasts longer than its runtime. It's built for anyone who wants a fixed reserve near a router, a computer or small appliances during a power outage, and for anyone planning to expand it later with more batteries; anyone looking for a light unit to carry around will find more weight and bulk here than needed.
official manufacturer list price — on nominal capacity
| Parameter | Value | Source |
|---|---|---|
| Dimensions | 39.8 × 28.4 × 20.2 cm (15.7 × 11.2 × 8.0 in) | manufacturer website |
| Weight | 12.5 kg (27.6 lb) | manufacturer website |
| Nominal capacity | 1.024 kWh | Declared by the brand |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Expandable | Yes | Declared by the brand |
| Maximum expanded capacity | 5 kWh | Declared by the brand |
| Continuous output | 1800 W | Declared by the brand |
| Peak output | 3600 W | Declared by the brand |
| Fastest USB-C | 140 W | Declared by the brand |
| Maximum charge power | 1.5 kW | Declared by the brand |
| Maximum solar input | 1000 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 |
| Mounting | Portable | Declared by the brand |
| Official list price | 769 € | Declared by the brand |
| Usable capacity | — | Not declared |
| Depth of discharge | — | Not declared |
| Cell supplier | — | Not declared |
| Peak duration | — | Not declared |
| AC outlets | — | Not declared |
| 0–80% charge time | — | Not declared |
| Guaranteed throughput | — | Not declared |
| Guaranteed remaining capacity | — | Not declared |
| Round-trip efficiency | — | Not declared |
| Standby consumption | — | Not declared |
| Ingress protection | — | Not declared |
| Minimum temperature | — | Not declared |
| Maximum temperature | — | Not declared |
| Cell heating | — | Not declared |
| Noise level | — | Not declared |
| Wheels and handle | — | 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 one page 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.
