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EcoFlow DELTA 2 Max Review
3,400W continuous output, LiFePO4 cells. Listed at $1,449 at EcoFlow.
The EcoFlow DELTA 2 Max is a portable 600 1,200wh unit. It uses LiFePO4 cells rated for 3,000 cycles, so it is built to be kept rather than replaced. It lists at $1,449 against an $2,019 MSRP.
Manufacturer price at the time of writing. This link is not a paid placement.
Charging and power delivery
Maximum solar input is 1,000W. Capacity is expandable with add-on batteries, so the starting figure is not the ceiling.
EcoFlow DELTA 2 Max specifications
Manufacturer figures, gathered so you can read them against everything else we track rather than against the marketing page they came from.
| Continuous AC output | 3,400W |
| Cell chemistry | LiFePO4 |
| Rated cycle life | 3,000 cycles |
| Max solar input | 1,000W |
| Warranty | 5 years |
| Price at EcoFlow | $1,449 |
What the EcoFlow DELTA 2 Max inverter will carry
EcoFlow does not publish a watt-hour capacity for this model, so we cannot give you runtimes and we will not estimate them. What is published is the 3,400W continuous rating, and that alone settles which appliances are on the table.
| Appliance | Typical draw | Within 3,400W? |
|---|---|---|
| Phones, tablets, laptops | 100W | Yes |
| Wi-Fi router and modem | 30W | Yes |
| Full-size refrigerator | 150W | Yes |
| CPAP with humidifier | 90W | Yes |
| Television and console | 200W | Yes |
| Microwave | 1,000W | Yes |
| Coffee maker | 900W | Yes |
| Space heater | 1,500W | Yes |
| Window air conditioner | 1,200W | Yes |
| Table saw or circular saw | 1,800W | Yes |
Carrying a load and carrying it for a useful length of time are different questions, and the second one needs the capacity figure that is missing here. Treat this table as the shortlist of what the unit can power at all, not as a statement about endurance.
How the EcoFlow DELTA 2 Max compares
The closest units we track from other manufacturers in the same band, matched on capacity rather than on price.
| EcoFlow DELTA 2 Max | Jackery Explorer 1500 Ultra | Jackery 1500 Ultra | |
|---|---|---|---|
| Capacity | — | 1,536Wh | — |
| Output | 3,400W | 3,600W | 3,600W |
| Cycle life | 3,000 cycles | 4,000 cycles | — |
| Weight | — | 39 lb | — |
| Price | $1,449 | $1,199 | $1,419 |
| Cost per watt-hour | — | $0.78 | — |
Where the EcoFlow DELTA 2 Max sits in its band
We track 83 priced units in the portable 600 1,200wh band, running from $119 to $9,199. At $1,449 the EcoFlow DELTA 2 Max is the 70 cheapest of 83. Because EcoFlow does not publish a capacity for this model, we cannot rank it on cost per watt-hour, which is the measure we would normally lead with. Price position on its own tells you where it sits in the range but not whether it is good value, and those are genuinely different questions.
Alternatives to the EcoFlow DELTA 2 Max
Units we track in the same band that are close enough to be genuine substitutes, matched on continuous output. Each links to its own review.
- BLUETTI Premium 200 V2 review — listed at $1,549.
- Jackery Explorer 1500 Ultra review — 1,536Wh, 3,600W output, listed at $1,199, $0.78 per watt-hour.
- Jackery 1500 Ultra review — 3,600W output, listed at $1,419.
- Jackery 5000 Plus review — 5,040Wh, 3,600W output, listed at $3,149, $0.62 per watt-hour.
Who the EcoFlow DELTA 2 Max suits
The 3,400W continuous rating puts a hard boundary on what this unit can power at all, and that boundary is the part of the decision we can speak to with confidence.
What we cannot tell you is how long it will hold out, because EcoFlow has not published a watt-hour figure for this model. If runtime is the question you are actually asking, either get that number from EcoFlow before ordering or choose one of the alternatives below, where the figure is on record and the arithmetic can be checked.
EcoFlow DELTA 2 Max questions
Can the EcoFlow DELTA 2 Max be charged by solar?
Yes. It accepts up to 1,000W of solar input. Panels rarely hit their rated figure in the field, so plan on about 70% of the panel rating across a clear day.
What warranty does the EcoFlow DELTA 2 Max carry?
EcoFlow covers it for 5 years, and rates the cells for 3,000 charge cycles. Cycle life and warranty are different promises, and the cycle figure is the one that tells you how long the pack stays useful.
What is not published
EcoFlow does not state the watt-hour capacity, which is the single figure runtime depends on, the weight for this model. We list figures rather than estimate them, so those rows stay empty until the manufacturer publishes them. If you need one of them to make the decision, ask EcoFlow directly and hold them to the answer.
How we assess these
Every figure on this page comes from the manufacturer, and every derived number, cost per watt-hour and estimated runtime, is calculated the same way for all 437 products we track. That is what makes the comparison meaningful: we are not scoring units against a private impression of them, we are putting published figures side by side and doing the arithmetic in public. Where a manufacturer stays quiet, we say so rather than filling the gap.