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EcoFlow River 3

At a glance

Full specs โ†“
Capacity
245 Wh
Usable energy
221 Wh
AC output
300 W
Surge
600 W
Chemistry
LiFePO4
Cycle life
3000 cycles
Max solar
110 W
Weight
7.7 lb
Best for
Phones & laptops CPAP Weekend camping
Estimated usable capacity Estimate
188 Wh at the outlet ยท ~77% of the 245 Wh rating

An estimate, not a measurement: we derate the 245 Wh rating for a safe depth-of-discharge and ~15% inverter loss (DCโ†’AC). We haven't bench-tested this unit yet, so treat it as a solid approximation.

EcoFlow

EcoFlow River 3

โ˜… 4.6 / 5

The EcoFlow River 3 is a 245Wh LiFePO4 portable power station delivering 300W continuous (600W surge). Rated for ~3000 cycles and up to 110W of solar input.

โ€”
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Full specifications

Battery capacity245 Wh
Usable capacity221 Wh
AC output300 W
Surge output600 W
ChemistryLiFePO4
Cycle life3000 cycles
Max solar input110 W
ExpandableNo
Weight7.7 lb
Warranty5 yrs
Ports3x AC | 1x USB-C | 2x USB-A | 1x car

Video review

We recommend watching a real-world test before buying. Here's a hands-on review of the River 3:

โ–ถWatch EcoFlow River 3 on YouTubeHobotech / DIY Solar Power

Channels we trust for hands-on testing

Independent reviewers who bench-test capacity, inverters and real-world runtime.

Hobotech
Rigorous real-world capacity & inverter testing.
DIY Solar Power with Will Prowse
The go-to for DIY off-grid and teardown reviews.
The Solar Lab
Real world testing of solar panels and power stations.

How long will the River 3 runโ€ฆ

Estimated runtime per full charge for common loads.

Phone charge (about 19 hours) Laptop (about 3.1 hours) Wi-Fi router / modem (about 13 hours) LED lights (per bulb) (about 19 hours) CPAP machine (about 4.7 hours) Mini fridge (about 3.1 hours) Full-size fridge (about 1.3 hours) 12V cooler / fridge (about 4.2 hours) Microwave (1000W) (under an hour) Coffee maker (under an hour)

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๐Ÿ”‹
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