EcoFlow DELTA 2
A 1,024 Wh LiFePO4 portable power station with 1,800 W of AC output and a 5-year warranty.
- Best for short power cuts
- Power station
- 1,024 Wh
- 5-year warranty
- Capacity: 1,024 Wh (about 1 kWh) with LiFePO4 cells.
- Output: 1,800 W continuous across four AC outlets, 2,700 W surge.
- Charges from the mains at 1,200 W or from solar panels at up to 500 W.
Not tested by us
We have not tested the EcoFlow DELTA 2. The figures on this page come from the sources listed at the end of the page, checked on 10 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
1,024 Wh
Capacity
1,800 W
AC output (2,700 W surge)
3,000
Cycles to 80+% capacity
Specifications
Last checked on 10 November 2026. The grey text under each name explains what the value means.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 1,024 Wh |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | LFP (LiFePO4) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | 3,000 cycles to 80+% capacity |
| ExpansionExtra battery units that add storage to the same system. | 2,048 Wh with a DELTA 2 extra battery; 3,040 Wh with a DELTA Max extra battery (one extra battery) |
| Output | |
| AC output (continuous)The power it can deliver all the time. Add up the watts of what you want to run at once and stay below this. | 4 outlets, 1,800 W in total |
| AC output (surge)A short burst above the continuous rating, for appliances that draw more power when they start. | 2,700 W |
| X-BoostA mode that can run some devices above the normal output rating by lowering the voltage it supplies. Not suitable for every device. | Runs devices up to 2,400 W |
| USB-APorts for phones, tablets and small devices. | 2 ports, 5 V 2.4 A (12 W max), plus 2 fast-charge ports up to 18 W |
| USB-CPorts for laptops, phones and tablets. Power delivery up to 100 W can charge most laptops. | 2 ports, up to 100 W each |
| Car outletA 12 V socket like the one in a car, for car accessories. | 1 port, 12.6 V 10 A (126 W max) |
| DC5521A small round DC connector used by routers, cameras and LED lights. | 2 ports, 12.6 V 3 A (38 W max) |
| Charging | |
| AC chargingHow fast it charges from a wall socket. Higher means a shorter wait. | 1,200 W |
| Time to charge from the mainsHow long a full charge takes from a wall socket. | Not stated on the page we read |
| Solar inputHow much solar panel power it accepts. A higher figure fills the battery faster on a sunny day. | 11–60 V, 15 A, 500 W max |
| Solar charging timeHow long a full charge takes from solar panels, in the conditions the maker names. | As fast as 3–6 hours with 1 × 400 W or 2 × 220 W panels |
| Backup switchover (EPS)What happens when the grid fails. EPS means it takes over automatically. | Switches automatically when the grid fails. Switchover time is not stated. |
| Housing and warranty | |
| Dimensions (L × W × H)Check the space before you buy, including room around it for airflow and cables. | 400 × 211 × 281 mm |
| WeightMatters for lifting, wall mounting and moving it. | 12 kg |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | 5 years |
How long will it run your devices?
Choose how many of each device you want to run at the same time. The wattages are typical figures, so check the label on your own devices.
| Device | Typical power | How many |
|---|---|---|
| 10 W | ||
| 10 W | ||
| 15 W | ||
| 60 W | ||
| 80 W | ||
| 80 W | ||
| 40 W | ||
| 1,000 W | ||
| 2,000 W | ||
| 1,000 W | ||
| W |
The estimate assumes 85% of the rated capacity is usable after conversion losses. EcoFlow does not state this figure, so we use a cautious assumption. Real running times vary with temperature, battery age and how each device draws power.
Compatible with
What EcoFlow says this product works with. Anything not listed here is not confirmed.
- Extra batteries
- One DELTA 2 extra battery (2,048 Wh in total) or one DELTA Max extra battery (3,040 Wh in total).
- Solar panels
- EcoFlow lists portable panels of 110, 160, 220 and 400 W. The solar input is 11–60 V, 15 A and 500 W at most.
- Car charging
- 12 V or 24 V car batteries at 8 A. EcoFlow sells an alternator charger as a bundle with the DELTA 2.
- Other EcoFlow products
- EcoFlow names its Wave portable air conditioner and extra batteries as part of the same ecosystem.
- App
- The EcoFlow app, over Wi-Fi or Bluetooth.
Rules where you live
A portable power station is not wired into your home, so it is simple to use almost anywhere. Connecting one to your home circuits to power the house is different, and the rules for that vary by country. See our country guides for the rules, incentives and prices where you live.
Strengths and things to check
Strengths
- LiFePO4 cells rated for 3,000 cycles to 80+% capacity (EcoFlow's figure)
- AC charging at 1,200 W
- Up to 500 W of solar input
- Can be expanded to 2,048 Wh with an extra battery
Worth checking before you buy
- 1,024 Wh is small for running a home: at the full 1,800 W it lasts well under an hour
- Not a home battery: do not connect it to your home circuits in a way that lets it feed the house
- Charging time from the mains and the switchover time are not stated on the page we read
- Weighs 12 kg
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 10 November 2026
- Page published. Warranty at publication: 5 years (EcoFlow UK product page).
Where this information comes from
We have not tested the DELTA 2. Every figure above comes from EcoFlow's product page (UK version), last checked on 10 November 2026. A value that the page does not state is shown as not stated. Socket types, voltages and some ratings differ by region, so check the version sold where you live.
We do not show prices, because they change often and differ between sellers.
- Manufacturer EcoFlow UK product page
Spotted an error?
Tell us through the contact form on our About Us page.
Common questions about EcoFlow DELTA 2
Can the DELTA 2 run a fridge?
Most fridges draw well under 1,800 W, so the output is rarely the limit; capacity is. Divide 1,024 Wh by the fridge's average draw for a rough running time, which will be lower in practice because of conversion losses.
Can the DELTA 2 charge from solar panels?
Yes. EcoFlow lists a solar input of 11–60 V, 15 A and 500 W at most, and says charging can take as little as 3–6 hours with 1 × 400 W or 2 × 220 W panels.
Is the DELTA 2 the same as a home battery?
No. It is a portable power station that you plug devices into. An installed home battery is wired into your electrics by an electrician. See our guide to plug-in and installed home batteries.
Related guides
Need a home battery rather than a portable one?
Our calculator uses your own usage and tariff to estimate what a home battery could save, with conservative assumptions.