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Ecoflow River Max Portable Power Station 576Wh USA

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UK Version:
EcoFlow River Max UK Portable Power Station

Ecoflow River Max Mobile Power Station

The Ecoflow River mobile power station is a cutting-edge solution for portable power. Although there are many solar power generators on the market, the River Max is revolutionary. Its compact size, 576Wh capacity, and lightning-fast charging make it perfect for van and RV applications.

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Key Features of the Ecoflow River

  • Thanks to its smart X-Stream integrated inverter, the River can charge from 0% to 80% in only 1 hour. You can switch to a quieter charging condition by turning on the “Quiet Charging” status on the Ecoflow app.
  • The extra battery doubles the capacity from 288Wh to 576Wh for when you need more power, you can also detach the extra battery easily for more portability.
  • With two AC outlets and a wide range of USB ports, you can charge up to 9 devices simultaneously.
  • The River Ecoflow features a pure sine wave 600W output, and can power devices up to 1800W with X-Boost enabled. Use devices below 1200W for the best product use.

The Modular Ecoflow River Max

Invented with versatility in mind, the modular design of the Ecoflow lets you choose between capacity and portability on the spot. Attach the Extra Battery to double your capacity from 288Wh to 576Wh, or leave it detached to lighten your load by 5.5 pounds.

Whichever you choose, even with one lithium-ion battery the River mobile power station outputs 600W of continuous power. With X-Boost on, this compact package can easily power devices up to 1800W, such as your fridge, kettle, or coffee maker.

The record-breaking speed of charging the Ecoflow River Max is possible by using truly cutting-edge technology. Because the River mobile power station was designed to be used on the go, it goes without saying that you can charge it in many different ways. You can fully charge it from an AC source, like the grid or a generator, in under an hour and a half.

The Ecoflow River Max features a sharp and bright LCD display. On it, you can find information about the charging time, time-to-full-charge, run time, as well as a timer. It also allows you to easily navigate and use the various features of the River Max.

EcoFlow X-Stream and X-Boost

EcoFlow’s X-Stream technology reinvents the charging process of portable power stations. With an integrated smart inverter, it eliminates the need for bulky adapters, and speeds up the charging process nearly tenfold! This allows the Ecoflow River portable power station to fully recharge in a mere 1.6 hours – faster than any other portable power station on the market.

With the help of the X-Boost mode, the Ecoflow River Max can power devices that exceed its 600W continuous power limit. X-Boost lowers the Voltage and the Amperage, allowing you to power high-wattage devices at a lower wattage. It is recommended that you leave X-Boost on all the time, as it generally improves performance, and lets you reliably power devices up to 1800W.

Benefits of the River

  • Lightning-fast charging means that you can have an uninterrupted power supply anywhere you go.
  • Its sleek, compact, and lightweight design means that you can confidently take the EcoFlow River with you anywhere you go.
  • A wide range of various ports means that the River is compatible with practically all household devices.
  • Faster charging means that you have less downtime, and more time powering your devices.

Technical Specifications




Aluminum alloy + Plastic


576Wh (28.8V 20Ah) 

AC Charge Input Power


AC Charge Input Voltage

100-120 VAC (50/60Hz)

Solar Charge Input

200W, 10-25V DC, 12A

Car Charge Input

12V DC, 10A

AC Output (x3)

600W (Surge 1200W)

Max Power Supported by X-Boost

Up to 1800W

DC Output (x1)

2.4A Max

12V Car Power Output (x1)

136W, 13.6V DC, 10A

USB-A Fast Charge Output(x1)

28W, 5V DC, 9V DC,12V 

USB-A Output (x2)

12W, 5V DC, 2.4A

USB-C Output (x1)

100W, 5-20V DC, 5A Max

DC5521 Output (x2)

13.6V DC, 3A

Cell Chemistry


Cycle Life

500 Cycles (80%+)

Recharging Temperature

32~113F (0~45℃)

Discharging Temperature

-4~140F (-20~60℃)


11.4 x 7.3 x 9.3in (28.9 x 18.4 x 23.5cm)


17 lbs (7.7kg)



Time Until Full Charge:

  •  AC source – 1.6 hours
  • Solar (2 x 110W) – 1.6 - 3 hours
  • Car battery – 6.5 hours

Included with the EcoFlow River Max Portable Power Station:

  • EcoFlow RIVER Max x 1  
  • DC5521-DC5525 Cable x 1
  • 1.5m MC4 to XT60 Solar Charging Cable x 1                                    
  • 1.5m AC Charging Cable x 1                                      
  • 1.5m Car Charging Cable x 1
  • User Manual x 1

*Please NOTE: This item is only applicable to orders in the US mainland states(except Hawaii, Alaska, Virgin Islands and Puerto Rico). 

2 Reviews Hide Reviews Show Reviews

  • 4
    A bit too small

    Posted by Greg on 14th Mar 2022

    Overall I'm really happy with this River Max, but when using all 3 AC ports it drains in just a few hours. I was surprised to see that it can power on our minifridge, while charging our other electronics from the USB ports! It came pretty quickly too.

  • 5
    Great power station!

    Posted by John on 8th Mar 2022

    Ordered in on Monday, came on Wednesday! No problems with the shipping and the power station works very well.