EF ECOFLOW RIVER 3 Plus Portable Power Station with EB300

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Product guide

EF ECOFLOW RIVER 3 Plus Portable Power Station with EB300

EF ECOFLOW RIVER 3 Plus with EB300 combines a compact portable power station with an extra battery for an advertised expanded capacity of up to 572Wh. Its listed 600W continuous AC output and UPS features suit smaller devices and backup needs, but listing details conflict on some power specifications.

At a glance

The included EB300 is described as adding 286Wh to the RIVER 3 Plus's 286Wh, for a stated combined capacity of 572Wh.
Manufacturer listing claims 600W continuous AC output and up to 1200W surge with X-Boost.
Three AC outlets are described as UPS-supported, with a claimed switchover under 10 ms.
The listing describes Bluetooth and Wi-Fi app control, plus AC and solar recharge options.

Price

$399.00Save 11%

Reference price: ~~$449.00~~

Price checked: Nov 12, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

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Pros and cons

Pros

The EB300 expansion battery is part of the titled bundle, and the listing specifies its 286Wh capacity.
Three UPS-supported AC outlets and a claimed sub-10 ms switchover may suit a small computer or network backup setup.
USB-A, USB-C and car-charger connections add ways to power smaller devices.

Cons

The claimed 600W continuous AC output limits its suitability for appliances with higher sustained power needs.
The 572Wh combined capacity is modest for extended backup of power-hungry devices.

Technical specifications

23 specifications

Identity
Brand	EF ECOFLOW
Model	EF-RV-H02-1

Power and battery
Battery type	Lithium Ion
Battery capacity, power station	286Wh
Combined capacity, advertised	572Wh
AC output, continuous	600W
AC output, surge with X-Boost	1200W
AC outlets	3 UPS-supported AC
Total outlets	7
UPS switchover	<10 ms
USB-A ports	2 USB-A
USB-C port	a high-speed USB-C
Extra battery USB-C port	140W USB-C port
Car charger output	a car charger output
AC recharge claim	0-100% in just about 1 hour
Solar input recharge claim	about 1.5 hours with a 220W solar input
Battery cycle-life claim	3000 charging cycles

Dimensions and installation
Form factor	Compact
Dimensions listed	23.1 x 14.7 x 23.4 centimetres

Materials and protection
Material listed	Acrylonitrile Butadiene Styrene
Battery protection claim	IP54 battery protection
Noise claim	30 dB

Connectivity and control
Wireless connectivity	Bluetooth and Wi-Fi

What to know before buying

Listing details to confirm

Listing details are contradictory or inconsistent: the technical details say 1200 watts maximum power, 600 output wattage and 990 watts wattage, while feature text describes 600W steady output and 1200W surge with X-Boost. Battery chemistry is also inconsistent, with Lithium Ion in the specifications and LiFePO4 in promotional claims. Check the exact selected configuration and its rated output and battery chemistry before buying. Dimensions differ slightly between listing fields. The feature description says approximately 30 dB, while a specification field lists runtime as 2 hours without stating the test load or operating conditions.

Who is it for?

A good fit for

Buyers seeking a compact backup unit for smaller electronics, with the included extra battery increasing the stated capacity.
Home-office users who value the listing's claimed UPS support for compatible equipment.
Campers or mobile users who can recharge by AC or have a compatible solar input.

Less suited to

Users who need sustained AC output above the stated 600W continuous figure.
Buyers seeking a clearly verified battery chemistry or a defined runtime for a particular load.

EF ECOFLOW RIVER 3 Plus Portable Power Station with EB300 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 28 ratings

5 stars74%74%
4 stars6%6%
3 stars7%7%
2 stars5%5%
1 star8%8%

Customer feedback describes the product as meeting expectations and reports positive impressions of performance, while reliability feedback is mixed. That matters for buyers considering it for backup: the listed UPS support and 600W continuous output define a small-device use case, but customer sentiment does not establish dependable operation in every setup.

Positive themes

Customer feedback characterizes the product as good and meeting expectations, with positive performance sentiment.

Mixed feedback

Customer opinions on reliability vary.

Frequently asked questions

What comes with the RIVER 3 Plus bundle?

The listing's box description names the 286Wh RIVER 3 Plus, 286Wh EB300 extra battery, AC charging cable, USB-B to USB-A UPS communication cable and user manual. A five-year service is also claimed.

What is the stated combined battery capacity?

The listing describes a 286Wh RIVER 3 Plus and a 286Wh EB300, with combined capacity expandable to 572Wh.

How much AC output does it provide?

Feature text states 600W continuous output and up to 1200W surge with X-Boost. Other technical listing fields differ, so confirm the rated output for the selected configuration.

Can it be used as a UPS?

The listing describes three UPS-supported AC outlets and a switchover under 10 ms. Confirm device compatibility and the backup behaviour needed for your setup.