EcoFlow DELTA 2 Max Portable Power Station Review
A 2,048 Wh LiFePO4 station with 2,400 W of AC output, 1,000 W of solar input and room to expand to 6,144 Wh.
By Watt Versus Editorial· Updated
This page was drafted with AI assistance and reviewed by our editor before publication.
Our verdict
A strong all-rounder at 2 kWh: plenty of outlets, fast charging and real room to grow. The weight is the price you pay.
Pros and cons
Pros
- Six AC outlets and 2,400 W of continuous output
- Accepts up to 1,000 W of solar, which EcoFlow says can refill it in as little as 2.3 hours
- Expands to 6,144 Wh with two extra batteries
- LiFePO4 cells rated for 3,000+ cycles, with a 5-year warranty
Cons
- At 50 lb it is a two-hand lift, not something to carry far
- Expansion works only with EcoFlow's own DELTA 2 Max Smart Extra Batteries
- We could not find a backup switchover time in EcoFlow's published specifications
Specifications
| Capacity | 2,048 Wh |
|---|---|
| Battery chemistry | LiFePO4 (LFP) |
| Rated cycle life | 3,000+ cycles to 80% capacity |
| AC output | 2,400 W |
| Peak output | 4,800 W surge |
| AC outlets | 6 |
| USB-C output | 2 x 100 W |
| Wall recharge | 1,800 W AC input (US model); about 1 hour with AC and solar combined, per EcoFlow |
| Max solar input | 1,000 W |
| Expandable to | 6,144 Wh with two Smart Extra Batteries |
| Weight | 50 lb (23 kg) |
| Dimensions | 19.6 x 9.5 x 12 in |
| Warranty | 5 years |
The full review
Who it suits
Households that want to keep a refrigerator, lights and internet running through an outage, and RV or van owners with space for a larger unit. The 1,000 W solar input makes it a sensible base for a small panel array.
Who should skip it
Anyone who has to carry the station by hand over a distance, If a built-in 30-amp RV outlet matters to you, confirm the port list first; the Anker SOLIX F2000 lists one.
What we could not confirm
EcoFlow quotes different charging figures by region. The US page lists an 1,800 W AC input, while the European page lists 2,300 W and "80% in 53 minutes" on AC alone. We show the US figure.
Frequently asked questions
- How much capacity can the DELTA 2 Max reach?
- The base unit holds 2,048 Wh. With two DELTA 2 Max Smart Extra Batteries it reaches 6,144 Wh.
- How much solar can the DELTA 2 Max take?
- Up to 1,000 W. EcoFlow says that is enough to recharge it in as little as 2.3 hours in good sun.
- How heavy is the DELTA 2 Max?
- EcoFlow lists a net weight of 23 kg, which is about 50 lb.
Ready to buy the EcoFlow DELTA 2 Max Portable Power Station?
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