EcoFlow Launches Four Gen4 Portable Power Stations
The lineup adds two DELTA home-backup units and two RIVER outdoor models to EcoFlow's U.S. product range.
Updated on Nov. 14, 2026 in Electric Vehicles
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EcoFlow has launched four new DELTA and RIVER Gen4 portable power stations in the United States. The company claims the DELTA 3800 Gen4 can run a refrigerator for up to 70 hours.
Why it matters
The launch gives U.S. households and outdoor users additional portable battery options for backup power and off-grid use. The DELTA models are positioned for home backup, while the RIVER models target camping and other outdoor needs.
The DELTA 3800 Gen4 stores 3,763 watt-hours and can expand to 12 kilowatt-hours, with a 3,600-watt continuous output and 7,200-watt surge rating. Figures are manufacturer-reported, and RIVER Gen4 pricing has not been announced.
The players
EcoFlow
EcoFlow is a portable power station manufacturer known for its DELTA and RIVER battery product lines.
The details
EcoFlow's U.S. Gen4 lineup includes two DELTA stations for home backup and two RIVER stations for outdoor use. The DELTA models draw 3 watts in standby and use a Fridge Runtime Boost feature to conserve energy between refrigerator cooling cycles, while Emergency Power Mode holds a small reserve that lets users charge a phone after the display shows 0%.
Timeline
Nov. 24: RIVER Gen4 presales begin.
Roadmap
The Gen4 launch extends EcoFlow's DELTA and RIVER lines as portable battery stations increasingly serve as home-backup alternatives to gasoline generators. The new models add expandable storage and energy-saving features to a category where runtime and capacity are the main comparison points.
Buyers weighing home backup can compare the DELTA 3000 Gen4 at $1,299 and DELTA 3800 Gen4 at $1,699 introductory prices against their refrigerator and device power needs. Anyone planning outdoor use should note that RIVER pricing is still unannounced before buying.
The takeaway
Compare claimed runtimes against your own appliance wattage before buying a portable power station. Manufacturer figures such as refrigerator runtime depend on conditions that may differ at home.
Further reading
Explore more Electric Vehicles coverage to see how portable power is fitting into the broader EV and energy storage market.
Source note: This article includes information reported by The Cool Down.
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Do you have a backup power source to keep your fridge running during outages?
