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EcoFlow RIVER 3 Plus portable power station, front view
EcoFlow

EcoFlow RIVER 3 Plus

The EcoFlow RIVER 3 Plus is a small, budget-friendly power station for phones, laptops, CPAP machines and Wi-Fi gear in an apartment or on a camping trip. It holds 286 Wh, puts out 600 W (1,200 W with X-Boost for simple heating devices), refills from the wall in about an hour and works as a basic UPS. It is not built for fridges or power tools, but it makes a good first unit.

Capacity
286 Wh
Output
600 W
1,200 W surge
Weight
10.4 lb
Wall charge
1 h
$180–$300Price checked

How long does the EcoFlow RIVER 3 Plus last?

On a full charge, the RIVER 3 Plus runs a CPAP with the humidifier off for about 35 hours, or four 8-hour nights. A Wi-Fi router and cable modem last about 10 hours, and a full-size fridge about 5.5 hours. Turn the heated humidifier on and the CPAP gets about 7 hours, a little short of a full night.

Runtime for 18 common devices

One device at a time, from a full charge. Devices that cycle on and off (fridges, freezers, heaters, pumps) use their average draw.

Battery Wh × 0.85 ÷ the device’s average watts. “Can’t run it” means the device needs more than 600 W or a start-up surge above 1,200 W. Try your own mix in the calculator.

Runtime for each device

A full answer for each device on the EcoFlow RIVER 3 Plus: hours, start-up surge and other units to consider.

Is the EcoFlow RIVER 3 Plus right for you?

Pick this one if you want a small box that keeps a router, a CPAP and phones going through an evening outage, and you think you may want more later. It is the only station under 500 Wh in our data that takes an extra battery. Add an EcoFlow extra battery and it reaches 858 Wh, which stretches that fridge from about 5.5 hours to about 16.

Next to the Jackery Explorer 300 v2, it has twice the output (600 W against 300 W) and twice the surge (1,200 W against 600 W). That is enough to start a full-size fridge or a 7 cu ft chest freezer, which the Jackery cannot do. The BLUETTI Elite 30 V2 matches its 600 W, has more surge and weighs about a pound less. The RIVER 3 Plus answers with a third AC outlet and room to grow.

Skip it if you want to cook, boil water or heat a room. Coffee makers, microwaves, kettles and space heaters all pull more than 600 W. X-Boost lets simple heating devices up to 1,200 W run, but at that draw the battery is empty in minutes. It also has a single USB-C port, so a home with several USB-C laptops will be taking turns.

What we like

  • Light enough to carry one-handed at 10.4 lb
  • Refills from a wall outlet in about an hour
  • 10 ms UPS switch-over keeps a router, modem or CPAP running through a flicker
  • Snap on an EB300 or EB600 extra battery to reach 858 Wh

Watch out for

  • 286 Wh only runs small loads for a few hours
  • 600 W limit rules out most kitchen appliances and space heaters
  • Only one USB-C port

Consider instead

Full specs

SpecEcoFlow RIVER 3 Plus
Capacity286 Wh
AC output (continuous)600 W
Surge1,200 W
Boost mode (heaters, kettles)1,200 W
Battery typeLiFePO4
Cycle life (rated)3,000 (to 80%)
Weight10.4 lb
Wall charge time1 h (0–100% from a wall outlet)
Max solar input220 W
AC outlets3
USB-C ports (max)1 (100 W)
USB-A ports2
12V / car portYes (1 DC ports)
ExpandableYes, up to 858 Wh
UPS switch-over10 ms
App controlYes
Size9.2 x 9.1 x 5.8 in
Released2025
Typical price$180–$300

Sources

Specs come from the maker’s own pages, checked . Runtimes use our own watt-hour math. How we pick

Also see: launch news and outside coverage

Compared with

Picked in our guides

Similar size

One size smaller, one size bigger

On the Goal Zero Yeti 500 (499 Wh), runtimes go from about 4.5 hrs for a 55-inch LED TV to about 17 hrs for a Wi-Fi router + cable modem, each running by itself.

Swipe sideways to see every device →

Hours from a full charge, one device at a time
Power stationCPAP with heated humidifier 34 W averageWi-Fi router + cable modem 25 W averageFull-size refrigerator 150 W running, about 45 W average55-inch LED TV 90 W averageMicrowave (1000 W) 1,500 W average
EcoFlow RIVER 3 Plus 286 Wh7 hrs9.5 hrs5.5 hrs2.5 hrsCan’t run it
BLUETTI Elite 30 V2 288 Wh7 hrs10 hrs5.5 hrs2.5 hrsCan’t run it
Goal Zero Yeti 500 499 Wh12 hrs17 hrs9.5 hrs4.5 hrsCan’t run it

Estimates: battery Wh × 0.85 ÷ the device’s average draw. Real runtime depends on temperature, battery age and how hard the device works.

Questions about the EcoFlow RIVER 3 Plus

Can the EcoFlow RIVER 3 Plus run a refrigerator?
Yes, for a short outage. Its 1,200 W surge covers the roughly 1,000 W a full-size fridge needs to start, and the battery runs it for about 5.5 hours. With an extra battery at 858 Wh, that grows to about 16 hours.
Can the RIVER 3 Plus run a window air conditioner?
No. A 5,000 BTU window unit needs about 1,350 W for a moment at start-up, which is above the RIVER 3 Plus’s 1,200 W surge. The BLUETTI Elite 30 V2 can start one, but its 288 Wh battery lasts only about an hour.
How long does the RIVER 3 Plus take to charge?
About an hour from empty to full on a wall outlet. Solar input tops out at 220 W, so a matching panel needs roughly an hour and a half of ideal sun, and longer in real conditions.