EcoFlow DELTA 2 Max
A 2,048 Wh LFP portable power station with 2,400 W of AC output, expansion to 6,144 Wh and a 5-year warranty.
- Best for expandable home backup
- Power station
- 2,048 Wh
- 5-year warranty
- Capacity: 2,048 Wh with LFP cells rated for 3,000 cycles to over 80%.
- Output: 2,400 W continuous, 4,800 W surge and 3,100 W with X-Boost, over 4 AC outlets.
- Charges from the mains at 2,300 W (80% in 53 minutes) or from solar at up to 1,000 W.
- Expands to 6,144 Wh with two Smart Extra Batteries.
Not tested by us
We have not tested the EcoFlow DELTA 2 Max. 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
2,048 Wh
Capacity
2,400 W
AC output (4,800 W surge)
6,144 Wh
With two extra batteries
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. | 2,048 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 over 80% capacity |
| ExpansionExtra battery units that add storage to the same system. | Up to two DELTA 2 Max Smart Extra Batteries, for 6,144 Wh in total |
| 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, 2,400 W in total |
| AC output (surge)A short burst above the continuous rating, for appliances that draw more power when they start. | 4,800 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. | 3,100 W |
| USB-APorts for phones, tablets and small devices. | 2 ports at 5 V 2.4 A, 12 W max each, and 2 fast-charge ports at up to 18 W |
| USB-CPorts for laptops, phones and tablets. Power delivery up to 100 W can charge most laptops. | 2 ports, 5-20 V 5 A, 100 W max 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 each |
| Charging | |
| AC chargingHow fast it charges from a wall socket. Higher means a shorter wait. | X-Stream fast charge, 2,300 W, 10 A (220-240 V, 50/60 Hz) |
| Time to charge from the mainsHow long a full charge takes from a wall socket. | 80% in 53 minutes on AC alone (43 minutes with AC and solar together, per EcoFlow) |
| 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 on a single port, 1,000 W on dual ports |
| Solar charging timeHow long a full charge takes from solar panels, in the conditions the maker names. | About 2.3 hours at 1,000 W, 2.6 hours at 880 W, 2.8 hours at 800 W |
| Car chargingCharging from a car's 12 V or 24 V socket while driving. Slow, but useful on the road. | 12 V or 24 V battery, 8 A |
| Backup switchover (EPS)What happens when the grid fails. EPS means it takes over automatically. | Not stated. The page mentions an 'AC Always On' mode but gives no switchover time |
| Housing and warranty | |
| Dimensions (L × W × H)Check the space before you buy, including room around it for airflow and cables. | 497 × 242 × 305 mm |
| WeightMatters for lifting, wall mounting and moving it. | 23 kg |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | Not stated |
| Noise levelFan noise while working. | 30 dB at low input and 500 W output |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | Not stated |
| 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
- Up to two DELTA 2 Max Smart Extra Batteries, 6,144 Wh in total.
- Solar panels
- 11-60 V, 15 A per port: 500 W on one port, 1,000 W across two.
- App
- The EcoFlow app, over Wi-Fi or Bluetooth, with in-app energy management.
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
- 2,400 W continuous with a 4,800 W surge
- Expands to 6,144 Wh
- Fast mains charging: 80% in 53 minutes (EcoFlow's figure)
- 1,000 W solar input on two ports
- 5-year warranty
Worth checking before you buy
- 23 kg: heavy to carry
- The page gives no switchover time, operating temperature or IP rating
- At full output it runs for under an hour without extra batteries
- Not a home battery: do not connect it to your home circuits in a way that lets it feed the house
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 Max. Every figure above comes from EcoFlow's UK product page, last checked on 10 November 2026. The DELTA 2 and DELTA Max are different products. A value that the page does not state is shown as not stated.
We do not show prices, because they change often and differ between sellers.
- Manufacturer EcoFlow UK DELTA 2 Max page
Spotted an error?
Tell us through the contact form on our About Us page.
Common questions about EcoFlow DELTA 2 Max
Can the DELTA 2 Max run a kettle?
Its 2,400 W continuous rating (3,100 W with X-Boost) covers most kettles, but 2,048 Wh empties quickly at that draw. Divide the capacity by the appliance's power for a rough running time.
Can the DELTA 2 Max be expanded?
Yes. EcoFlow says you can add up to two DELTA 2 Max Smart Extra Batteries for 6,144 Wh in total.
Is the DELTA 2 Max 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?
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