EcoFlow
EcoFlow DELTA 3 Max
Ranked #41 of 46 power stations we track. Launch MSRP $1,499.
A 2048Wh LiFePO4 power station with a 2400W inverter (3400W X-Boost) and a 10 ms UPS, suited to home backup for larger appliances and generator or solar recharging.
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Strengths
- 2400W rated AC output with 4800W surge
- 1800W AC input charges 0-80% in 68 minutes
- Three USB-C ports (one 100W, two 30W) plus a 126W car outlet
- Wi-Fi 2.4GHz and Bluetooth 5.0 app control
Watch out for
- Not expandable: EcoFlow notes it has an XT60 port only, with no XT150 extra battery link
- Solar input limited to 500W
- Only one 18W USB-A port
- Warranty is 3 years standard; the extra 2 years require registration
Score breakdown
How the EcoFlow DELTA 3 Max scores: 6.2/10Methodology
- Battery chemistry16% weightLiFePO4
- Rated cycle life12% weightNot published
- AC output12% weight2,400 W
- Energy density12% weight45.71 Wh/lb
- AC recharge time12% weightNot published
- Solar recharge rate8% weight0.24 W per Wh
- Expandable8% weightNo
- UPS switchover8% weight10 ms
- Warranty8% weight3 yr
- App control4% weightwifi+bluetooth
Full specifications
| Brand | EcoFlow |
|---|---|
| Model | DELTA 3 Max |
| Released | 2025 |
| Battery capacity (Wh) | 2,048 |
| Battery chemistry | LiFePO4 |
| AC output, continuous (W) | 2,400 |
| AC output, surge (W) | 4,800 |
| AC outlets | 4 |
| Pure sine wave | Yes |
| USB-C ports | 3 |
| USB-C max per port (W) | 100 |
| USB-A ports | 1 |
| 12V car outlet | Yes |
| AC charging input, max (W) | 1,800 |
| Solar input, max (W) | 500 |
| Solar input, min voltage (V) | 11 |
| Solar input, max open-circuit voltage (V) | 60 |
| Solar input connector | XT60i |
| Expandable with extra batteries | No |
| UPS switchover (ms) | 10 |
| Weight (lb) | 44.8 |
| App connectivity | wifi+bluetooth |
| Warranty (years) | 3 |
| Launch MSRP | $1,499 |
Specs last checked 2026-10-21.
What will it run, and for how long?
| Appliance | Draw | Inverter | Runtime | Runtime as a share of 24 hours |
|---|---|---|---|---|
| ResMed AirSense 11 CPAP | 56 W | Runs | 31 h | |
| Wi-Fi router | 6.5 W | Runs | 11.2 days | |
| Smartphone charger | 10 W | Runs | 7.3 days | |
| Laptop computer | 50 W | Runs | 35 h | |
| LED bulb (60 W equivalent) | 9 W | Runs | 8.1 days | |
| Full-size refrigerator (ENERGY STAR) | 160 Wavg 51 W cycling | Runs | 34 h | |
| 12V portable fridge (Dometic CFX5 45) | 58 Wavg 7 W cycling | Runs | 10.4 days | |
| LED/LCD TV (about 45-inch) | 162 W | Runs | 11 h | |
| Window fan | 153 W | Runs | 11 h | |
| Drip coffee maker | 1,300 W | Runs | 1.3 h | |
| Microwave oven (1.25 cu ft) | 1,500 W | Runs | 1.2 h | |
| Submersible sump pump (1/2 HP) | 1,000 W3,000 W to start | Runs | 1.7 h |
Runtime = usable energy ÷ average draw. We count 85% of the rated 2,048 Wh as usable (1,741 Wh) to cover inverter and DC conversion losses. Fridges and freezers are averaged over their compressor cycle. An appliance runs only if its running watts fit the 2,400 W inverter and its start-up surge fits the 4,800 W surge rating. Wattages come from our appliance wattage table; try your own mix in the runtime calculator.
Which solar panels fit it?
- Solar input up to 500 W
- Voltage window 11–60 V
- Connector XT60i
Recharge time is from empty with one panel in full sun: 2,048 Wh ÷ the lower of75% of the panel's rating or the station's solar input limit. A panel rated above the input limit is safe as long as its Voc fits, because the station only draws what it can take. MC4 panels need a standard MC4 adapter cable, which many stations include. Wiring two panels in series doubles the Voc, so check the total against the voltage window. Try any pairing in the solar panel matcher.
6 panels that don't fit
- Jackery SolarSaga 200W Solar Panel: its 8mm DC plug doesn't fit the XT60i solar port
- Goal Zero Nomad 400: its brand-specific plug doesn't fit the XT60i solar port
- Goal Zero Nomad 200: its brand-specific plug doesn't fit the XT60i solar port
- Goal Zero Nomad 100: its 8mm DC plug doesn't fit the XT60i solar port
- Goal Zero Boulder 100 Briefcase: its 8mm DC plug doesn't fit the XT60i solar port
- Goal Zero Boulder 200 Briefcase: its brand-specific plug doesn't fit the XT60i solar port
How it compares
| Spec | EcoFlow DELTA 3 Max | VTOMAN Jump 1800 | Jackery Explorer 1000 v2 |
|---|---|---|---|
| Score | 6.2 | 6.4 | 6.2 |
| Battery chemistry | LiFePO4 | LiFePO4 | LiFePO4 |
| Rated cycle life | — | 3,000 | — |
| AC output | 2,400 W | 1,800 W | 1,500 W |
| Energy density | 45.71 Wh/lb | 36.57 Wh/lb | 44.96 Wh/lb |
| AC recharge time | — | — | 60 min |
| Solar recharge rate | 0.24 W per Wh | 0.16 W per Wh | 0.37 W per Wh |
| Expandable | No | Yes | No |
| UPS switchover | 10 ms | — | 20 ms |
| Warranty | 3 yr | — | 3 yr |
| App control | wifi+bluetooth | none | wifi+bluetooth |
| Launch MSRP | $1,499 | — | $799 |