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EcoFlow RIVER 3
The faster-charging alternative to the RIVER 2, with near-UPS switchover included.EcoFlow · Power stationsLiFePO4 (LFP)

EcoFlow RIVER 3

The direct competitor to the RIVER 2: 245 Wh and 300W, but charges to 100% in 1 hour and switches to battery in 20 milliseconds during an outage — almost a small UPS. 3.5 kg.

4.2/ 10

PowerLight score

Our own read for home backup during a power outage, comparable across units in the catalog. Not Amazon buyers' rating. How we score →

Runtime1
Power1
Portability10
Expandable0
Value9
Wh
245
W continuous
300
kg
3.50
ASIN verified against the listing on September 21, 2026We don't sell or ship anythingSpec sheet reviewed on October 18, 2026
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Editorial verdict

The faster-charging alternative to the RIVER 2, with near-UPS switchover included.

Best use case

Anyone looking for the smallest, fastest-charging unit to keep a router, phone, and a critical device running without a second's interruption.

It's the newer alternative to the RIVER 2, with the same capacity: 245 Wh, a full charge in 1 hour (faster than the RIVER 2), and a battery switchover of only 20 milliseconds during an outage — works almost like a small UPS for things that can't go dark for even a second.

Same limitation as the RIVER 2: not enough for cooling or large loads.

Pros

  • Full charge in 1 hour
  • 20ms battery switchover — almost a UPS
  • Very light (3.5 kg) and compact

Cons

  • 245 Wh: same limitations as the RIVER 2, not for cooling
  • 2-year warranty, shorter than other models in the line
  • Doesn't support an extra battery

Ideal for: Anyone looking for the smallest, fastest-charging unit to keep a router, phone, and a critical device running without a second's interruption.

Mandatory check with your shipping agency. PowerLight doesn't recommend shipping methods or determine whether a product can be accepted or shipped. Before buying, ask your shipping agency to confirm in writing that they accept the exact model, along with requirements, cost, and timeline.

Estimated runtime with common household equipment

  • WiFi router10 W
    ≈ 19.6 h–22.1 h
  • LED light bulb9 W
    ≈ 21.8 h–24.5 h
  • Standing fan55 W
    ≈ 3.6 h–4 h
  • Standard home refrigerator150 W
    can't handle the startup surge

How long EcoFlow RIVER 3 can power each device in a row, calculated with the same efficiency range (80%–90%) as the runtime calculator.

Spec sheet

Capacity
245 Wh
Continuous output
300 W
Peak output
600 W
Max. solar input
—
AC charging
1.00 h
Weight
3.50 kg
Cycle life
3000 cycles
Warranty
2.0 years
Battery switchover
20 milliseconds — works as a small UPS during power outages
Size
30% smaller than the industry average
Warranty note
EcoFlow doesn't have official support in every country: the warranty is handled through the country of purchase.

To understand this better

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EcoFlow RIVER 3

4.2/10 PowerLight rating

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