EcoFlow EcoFlow DELTA 2
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 2 is a lithium iron phosphate power station designed as a first line of home backup: leave it plugged into the outlet and, when power fails, it steps in before a running computer or the modem even notice. There are four outlets, and the capacity it ships with isn't the final word: an external battery, sold separately, extends it as the loads to cover grow.
It charges from the home outlet, the sun or the car's cigarette lighter socket. Twelve kilos lift with one hand, and it moves from the living room to the balcony or the car without asking for help. The finer adjustments — how long it stays on with nothing connected before switching itself off — are made from the app, not from the buttons on the body.
It's the safety net for anyone who wants to keep a fridge, a modem and a few lights on during an outage, and the battery you take camping without asking too much of it. Anyone who needs to start two heat-producing appliances together is asking the DELTA 2 for more than it can give.
Technical specifications
official manufacturer list price — on nominal capacity
| Parameter | Value | Source |
|---|---|---|
| Weight | 12.0 kg (26.5 lb) | manufacturer website |
| Power supply | 220-240 V / 50-60 Hz | 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 |
| Continuous output | 1800 W | Declared by the brand |
| Peak output | 2700 W | Declared by the brand |
| AC outlets | 4 | Declared by the brand |
| Fastest USB-C | 100 W | Declared by the brand |
| Maximum charge power | 1.2 kW | Declared by the brand |
| Maximum solar input | 500 W | Declared by the brand |
| Backup power | EPS (brief interruption) | Declared by the brand |
| Switchover time | 30 ms | Declared by the brand |
| Rated cycles | 3000 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 |
| Minimum temperature | -10 °C | Declared by the brand |
| Maximum temperature | 45 °C | Declared by the brand |
| Official list price | 599 € | Declared by the brand |
| Depth of discharge | — | Not declared |
| Cell supplier | — | Not declared |
| Maximum expanded capacity | — | Not declared |
| Peak duration | — | 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 |
| 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 |
Which documents this page rests on
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.
What it really costs
How we worked it out
- price
- 599
- nominal capacity
- 1.024
- the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first
How we worked it out
- stated cycles
- 3000
- warranty years
- 1825
- the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first
- on nominal capacity: the manufacturer does not state the usable figure, so the real cost is higher
- without conversion losses, which the manufacturer does not state: the real cost is higher
How we worked it out
- price
- 599
- nominal capacity
- 1.024
- battery life cycles
- 1825
- round-trip efficiency
- 100
- energy delivered over the whole life
- 1869
- on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower
How we worked it out
- nominal capacity
- 1.024
- weight
- 12
- on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower
How we worked it out
- continuous power
- 1800
- nominal capacity
- 1.024
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.
Pros and cons
In favour
- The outage doesn't reach the connected appliances: a running computer stays running.
- Twelve kilos lift with one hand: it moves from the living room to the balcony without asking for help.
- Capacity extends with an external battery, when the loads to cover grow.
- It charges from the outlet, the sun or the cigarette lighter socket: away from home it doesn't stay idle. source
Worth knowing
- On its own it covers only a few hours of heavy loads: for a long outage the external battery is needed, sold separately.
- Eighteen hundred watts continuous: two heat-producing appliances running together saturate it.
- The automatic shutoff time can only be changed from the app, not from the buttons on the body. source
Similar products worth weighing up
Other products EcoFlow
Alternatives in the catalogue
Chosen by the declared use tier and footprint, not by price: we don't publish prices.
