The catch
EcoFlow RIVER 2
Most heaters, kettles and corded tools are beyond the 300W inverter. The 600W X-Boost figure in the headline is not full-voltage continuous output.
Side by side
EcoFlow RIVER 2 vs RIVER 3: Both stay at 300W AC, and RIVER 3 improves ports and transfer
Quick verdict
The RIVER 3 is the one to get if its 100W USB-C port or shorter standard backup transfer suits your equipment. For modest loads the RIVER 2 stays in the running, with slightly more nominal battery capacity and the same 300W AC rating and 110W solar ceiling. The RIVER 3 does not make a 500W appliance a fit for this small-station class.
Before you buy
Why, and what it costs you
Only 11Wh separates the batteries
Nominal capacity on RIVER 3 is about 4.3% lower than on RIVER 2.
Where this comes from
(256 − 245) ÷ 256 × 100 = 4.3%. In actual use, differing conversion losses can outweigh this gap.
The catch
EcoFlow RIVER 3
Don’t confuse the base model’s 300W AC with the 550W combined-port or 600W X-Boost headline.
EcoFlow RIVER 2
- Why pick it
- None of your USB-C devices needs over 60W.
- For the same 300W AC job, you’d like the slightly larger nominal battery.
- The catch
- Most heaters, kettles and corded tools are beyond the 300W inverter. The 600W X-Boost figure in the headline is not full-voltage continuous output.
EcoFlow RIVER 3
- Why pick it
- Your laptop can draw as much as 100W over USB-C.
- You’d rather have the standard 20ms transfer specification than RIVER 2’s 30ms.
- The catch
- Don’t confuse the base model’s 300W AC with the 550W combined-port or 600W X-Boost headline.
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What this page compares
The standard EcoFlow RIVER 2 and RIVER 3 compared on laptop charging, battery capacity, solar input and backup transfer, keeping the UPS variants straight.
The same basic AC and solar limits carry over, and RIVER 3 improves the USB-C connection.
Which one fits
Pick the situations that sound like you
My laptop takes 90W over USB-C
The port on RIVER 2 tops out at 60W.
- EcoFlow RIVER 2
- Caution
- EcoFlow RIVER 3
- Better fit
I charge phones and power modest lights
Small loads are well within the output of both, and their nominal capacity is similar.
- EcoFlow RIVER 2
- Similar
- EcoFlow RIVER 3
- Similar
A steady 500W is what my AC appliance draws
Each is rated for 300W continuous.
- EcoFlow RIVER 2
- Not suitable
- EcoFlow RIVER 3
- Not suitable
I have a small 100W panel that’s compatible already
Up to 110W of solar input is allowed on both, within their voltage and current limits.
- EcoFlow RIVER 2
- Similar
- EcoFlow RIVER 3
- Similar
In practice
Differences you will notice
Only 11Wh separates the batteries
Nominal capacity on RIVER 3 is about 4.3% lower than on RIVER 2.
How we worked this out
(256 − 245) ÷ 256 × 100 = 4.3%. In actual use, differing conversion losses can outweigh this gap.
The useful USB-C difference shows up with a 90W laptop
RIVER 3 has 10W of port headroom, but RIVER 2 comes up 30W short of the requested power.
How we worked this out
90 − 60 = 30W and 100 − 90 = 10W. Actual draw is still governed by Power Delivery negotiation, cable capability and the laptop’s state.
Both continuous ratings fall short of a 500W AC load
It is 200W over each 300W continuous AC rating.
How we worked this out
500 − 300 = 200W. Boost modes meant for selected resistive appliances don’t count as standard 500W output.
Option A
EcoFlow, EFR600
RIVER 2
Lights, phones and modest laptop loads are what this 7.7-pound station is for. The 256Wh battery is easy to carry and is advertised to recharge from the wall in one hour.
- Best for
- A lightweight emergency kit that’s no trouble to carry
Facts we checked
- 300W rated AC output from a 256Wh LFP battery
- 60W USB-C input and output, at about 7.7 lb
- An 11–30V, 8A input window under a 110W solar ceiling
Option B
EcoFlow, EFR705
RIVER 3
A flat, light battery for small electronics and short trips. Its 100W USB-C port is more useful with a laptop than the older RIVER 2’s, but the AC sockets still supply only a modest 300W.
- Best for
- Charging a laptop, lighting a camp and getting a bit of plug-in power from a small bag.
Facts we checked
- 300W combined US AC output from a 245Wh battery.
- Measuring 10 by 8.3 by 4.4 inches, at about 7.8 lb.
- A 12.6V 10A car socket and 100W USB-C.
- Solar input of 110W.
- The standard model lists transfer under 20ms and about one hour to reach full on AC.
Spec by spec
Where they really differ
| Spec | EcoFlow RIVER 2 | EcoFlow RIVER 3 | In practice |
|---|---|---|---|
| Battery capacity | 256Wh | 245Wh | Nominal energy is 11Wh higher on RIVER 2. |
| Continuous AC output | 300W | 300W | Each remains a small-load station. |
| Maximum USB-C output | 60W | 100W | A compatible laptop above 60W is a better match for RIVER 3. |
| Maximum solar input | 110W | 110W | Accepted solar power doesn’t go up in the new generation. |
| Listed weight | 7.7 lb | 7.8 lb | Nominally, carrying weight differs by only about 0.1 lb. |
| Standard-model transfer time | 30ms | 20ms | This RIVER 3 comparison doesn’t cover the separately named 10ms UPS variant. |
Trade-offs
What each pick costs you
With EcoFlow RIVER 2
- A 100W or 140W laptop won’t get its full charging rate from the 60W USB-C port. Transfer takes up to 30ms, which falls outside our fast-transfer tag.
With EcoFlow RIVER 3
- Its 245Wh battery is smaller than the RIVER 2’s, and it can’t be expanded.
Decision guide
How to decide
Pick the RIVER 3 because of a connection you’ll use, and not because you assume a newer generation stores more energy.
USB-C is the upgrade that most laptop owners will use
RIVER 2’s 60W port can’t give a laptop that accepts 90W over USB-C its full amount. The RIVER 3 provides up to 100W with a suitable cable and compatible device. A 30W tablet gains nothing from the higher ceiling, so your actual charger or device specification tells you more than the largest number does.
The battery headline slips a little
The RIVER 3 holds 245Wh, against 256Wh for the RIVER 2. EcoFlow promotes efficiency improvements, yet a product specification alone can’t establish how long your equipment will run. Base your planning estimate on the capacity figures, and don’t assume the later model always outlasts the earlier one under every load.
Both remain small-appliance stations
For either model, the 300W continuous AC rating is the hard starting point. A 500W appliance falls outside it, even if a special boost mode is advertised for selected loads. In the same way, 110W of solar acceptance keeps both in the small-panel class. If you need cooking equipment or a longer reserve, step up a size instead of expecting this generation change to fix it.
What this page can’t tell you
- Without a comparable measured test, no efficiency or runtime improvement is claimed.
- Safety-critical equipment isn’t guaranteed to work with either transfer specification.
By the numbers
What the data shows
What we found across the portable power stations we compare, plus the checked facts behind each finding.
How many fit
Only 7 of the 50 models checked meet every need here: “I have to carry it in one hand”, “I need power at campsites and on weekends away”, and “I charge modern laptops straight from it”.
7 models fit, out of 50 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “I have to carry it in one hand”, “I need power at campsites and on weekends away”, and “I charge modern laptops straight from it”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| EcoFlow RIVER 2 |
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| EcoFlow RIVER 3 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
EcoFlow RIVER 2
None of your USB-C devices needs over 60W.
See price & reviews on AmazonEcoFlow RIVER 3
Your laptop can draw as much as 100W over USB-C.
See price & reviews on AmazonEach link opens in a new tab.
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