EcoFlow DELTA 3 Max Portable Power Station
SVT Score, Lower
2,048 Wh station at 44.8 lb with a 68-minute charge to 80 percent and one 500 W solar input.
$899
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Usability
5.3 out of 10It stores 2,048 Wh, the typical size for a large station, so it scores 5 on capacity.
Better on capacityEcoFlow DELTA 3 Ultra PlusStores 3,072 Wh. $1,514Scores 7.0Its inverter is rated 2,400 W continuous, so it scores 5 on power output.
Better on power outputEcoFlow DELTA 3 Ultra PlusInverter is rated 3,600 W continuous. $1,514Scores 10.0EcoFlow states 68 minutes to 80 percent from the wall, but solar input tops out at 500 W, so it scores 4 on recharging.
Better on rechargingEcoFlow DELTA 3 Max PlusEcoFlow states 64 minutes to 80 percent from the wall. $1,149Scores 8.0EcoFlow publishes no cycle rating for it, only a design life of about 10 years, so it scores 4 on battery life.
Better on battery lifeJackery HomePower 2000 Plus v2Jackery rates the cells for 6,000 cycles to 70 percent capacity. $1,199Scores 8.0It switches to battery in under 10 ms but takes no expansion battery or transfer switch, so it scores 5 on backup readiness.
Better on backup readinessEcoFlow DELTA 3 Ultra PlusSwitches to battery in under 10 ms. $1,514Scores 7.0SGS lists it to UL 2743 by model, so it scores 6 on verification.
EcoFlow's policy gives it 3 years plus 2 on registration in the app, so it scores 8 on warranty and support.
Its warranty runs 5 years on most stations, or 3 years plus 2 on registration, with returns within 30 days.
2 kWh that charges fast, then stops growing
The DELTA 3 Max is EcoFlow's 2 kWh LiFePO4 station without an expansion port, a 44.8 lb box with four 20 A outlets.
It suits a buyer who wants 2 kWh for outages at $250 under the Max Plus and has no plans for solar beyond 500 W. $899 at us.ecoflow.com.
What we like
- Full wall charge in 68 minutes in TheSolarLab's test
- Four 20 A outlets
- 10 ms UPS switchover
- UL 2743 listing by model in SGS's directory
- $250 less than the DELTA 3 Max Plus
What holds it back
- Solar input capped at 500 W
- No expansion battery
- No published cycle rating
- Last 2 warranty years need app registration
What you’re getting
- Capacity2,000-2,999 Wh
- AC Output2,000-2,999 W
- Output Voltage120 V only
- Battery ChemistryLiFePO4
- Safety ListingUL 2743 listed
- Solar Input300-599 W
- Backup Switchover10 ms or less
- Warranty5 Years
- Expandable ToNot expandable
- Weight44.8 lb
Not published by EcoFlow: rated cycles.
At a glance
- 30 W USB-C port
- 100 W USB-C port
- 126 W car port
EcoFlow Technology, Inc. is EcoFlow's US company and is owned by Shenzhen EcoFlow Innovation Technology, a private firm founded in 2017.
It sells direct from us.ecoflow.com and through Amazon US, Costco, Home Depot, Lowe's and marketplace stores at Best Buy and Walmart.
The EcoFlow DELTA 3 Max is a 2,048 Wh LiFePO4 station rated 2,400 W continuous at 120 V from four 20 A outlets, with 100 W and 30 W USB-C ports and a 126 W car port. EcoFlow states a charge to 80 percent in 68 minutes from the wall at up to 1,800 W, and it takes up to 500 W of solar through one XT60 input. EcoFlow states a switchover under 10 ms and a design life of about 10 years but publishes no cycle rating. It weighs 44.8 lb and takes no expansion battery.
