EcoFlow DELTA 3 Max Plus
Power station · DELTA 3. Specs from the manufacturer page (checked ).

The EcoFlow DELTA 3 Max Plus is a 2048 Wh portable power station with 3000 W output (6000 W surge) and LiFePO4 cells. It provides 120V AC output, and the page lists a 5-year warranty. It can pair with EcoFlow Smart Generators, which are sold separately.
Key features
- AC output: 120V~60Hz, 3000W total (surge 6000W), 20A max per port (x4)
- X-Boost: 3800W
- USB-C: 140W max on one port; two more USB-C ports at 45W each
- USB-A: 18W max
- 12V DC Anderson port: 30A, 378W total; cigarette lighter port: 10A, 126W total
- Wall AC input: 100-120V~15A 50/60Hz, charge only
- PV input: 1000W maximum
- 0-80% in 43 minutes measured with EcoFlow Smart Generator 4000 (Dual Fuel) in optimal conditions
- UPS switchover <10ms
- Wi-Fi and Bluetooth communication, with an app dashboard for battery status and energy monitoring
What it is for
- multi-day outages
- off-grid adventures
Specifications
| Capacity | 2048 Wh |
|---|---|
| Continuous output | 3000 W |
| Peak / surge | 6000 W |
| Solar input | 1000 W |
| Expandable | Yes |
| Battery chemistry | LiFePO4 |
| AC output voltage | 120V |
| Weight | 22.1 kg (48.7 lb) |
| Dimensions | 49.4 × 24.2 × 30.5 cm (19.4 × 9.5 × 12.0 in) |
| Warranty | 5 years |
From the EcoFlow page. Values the manufacturer does not publish are left out.
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 39 h |
| Chest freezer | 100 W (500 start) | yes | 54 h |
| CPAP (no humidifier) | 35 W (40 start) | yes | 46 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 27 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 5.6 days |
| Starlink (standard dish) | 60 W (100 start) | yes | 27 h |
| TV 50" | 75 W | yes | 22 h |
| Sump pump 1/2 HP | 920 W (2150 start) | yes | 1.8 h |
| Well pump 1/2 HP | 880 W (2000 start) | yes | 1.8 h |
| Space heater 1500 W | 1500 W | yes | 1.5 h |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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EcoFlow DELTA 3 Max Plus comparisons
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All 24 comparisons
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- DELTA 3 Max Plus vs Grecell 2400W Portable Power Station
- DELTA 3 Max Plus vs Allpowers R2500 V2
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Connection and wiring
We have not linked an official manual for this model yet; see the EcoFlow page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
How long will the EcoFlow DELTA 3 Max Plus run a refrigerator?
About 39 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the EcoFlow DELTA 3 Max Plus start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 6000 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.