EcoFlow DELTA 3 Max Plus Portable Power Station
SVT Score, Upper
2,048 Wh station with 3,000 W continuous, 1,000 W of solar and room to grow to 10 kWh.
$1,149
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Usability
6.4 out of 10It stores 2,048 Wh, the typical size for a large station, so it scores 5 on capacity.
Better on capacityEcoFlow DELTA ProStores 3,600 Wh. $1,899Scores 10.0Its inverter is rated 3,000 W continuous, so it scores 8 on power output.
EcoFlow states 64 minutes to 80 percent from the wall and two inputs take 1,000 W of solar, so it scores 8 on recharging.
EcoFlow's US pages publish no cycle rating for it, though its Australian blog states 4,000 cycles to 80 percent, so it scores 4 on battery life.
Better on battery lifeEcoFlow DELTA ProEcoFlow rates the cells for 3,500 cycles to 80 percent capacity. $1,899Scores 6.0It switches to battery in under 10 ms and takes EcoFlow's extra batteries up to 10 kWh, though no transfer switch is sold for it, so it scores 7 on backup readiness.
SGS 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.
$1,149 at us.ecoflow.com.
3,000 W and room to 10 kWh, cycles unpublished
The DELTA 3 Max Plus is EcoFlow's expandable 2 kWh LiFePO4 station, a 48.7 lb box with four 20 A outlets.
It suits a buyer who wants 2 kWh with 3,000 W and the option to grow, and who will register it in the app for the full term.
What we like
- 3,000 W continuous output
- 1,000 W of solar over two inputs
- Expands to 10 kWh with extra batteries
- Switchover measured at 8 to 8.4 ms by two testers
- UL 2743 listing by model in SGS's directory
What holds it back
- No cycle rating on EcoFlow's US pages
- Usable capacity measured at 80 percent by StorageReview
- Only one 140 W USB-C port
- Last 2 warranty years need app registration
- Expansion needs a separate adapter
What you’re getting
- Capacity2,000-2,999 Wh
- AC Output3,000-3,999 W
- Output Voltage120 V only
- Battery ChemistryLiFePO4
- Safety ListingUL 2743 listed
- Solar Input1,000-1,999 W
- Backup Switchover10 ms or less
- Warranty5 Years
- Expandable To10-19.9 kWh
- Weight48.7 lb
Not published by EcoFlow: rated cycles.
At a glance
- 30 A Anderson port
- Two 45 W USB-C ports
- Four 20 A outlets
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 Plus is a 2,048 Wh LiFePO4 station rated 3,000 W continuous at 120 V from four 20 A outlets, with a 140 W USB-C port, two 45 W USB-C ports, a 30 A Anderson port and a 126 W car port. EcoFlow states a charge to 80 percent in 64 minutes from the wall at up to 1,800 W, and it takes up to 1,000 W of solar through two inputs. It switches to battery in under 10 ms and takes EcoFlow's extra batteries up to 10 kWh through an adapter. It weighs 48.7 lb, and EcoFlow's US pages publish no cycle rating for it.
