
EFR421 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $195.99 | Condition is New, EcoFlow RIVER 2 300W Portable Power Station 600W Peak LFP Battery ZMR600, FREE SHIPPING | 99.5% |
![]() | $227.99 | Condition is New, EcoFlow River 2 Generator 600W Portable Power Station Solar Home Energy Charge, FREE SHIPPING | 100.0% |
![]() | $236.25 | Condition is New, EcoFlow 600W Max 256Wh RIVER 2 Portable Power Station LiFePO4 Battery Generator, FREE SHIPPING | 99.2% |
![]() | $236.25 | Top Pick! Condition is New, EcoFlow River 2 Power Station 600W Max 256Wh LiFePO4 Portable Solar Generator, FREE SHIPPING | 99.2% |
![]() | $336.25 | Condition is New, EcoFlow River 3 Plus 286Wh Portable Power Station 600W LiFePO4 Battery 10 MS UPS, FREE SHIPPING | 99.2% |
![]() | $357.19 | Condition is New, EcoFlow RIVER 2: 256Wh Solar Generator with 1-Hour AC Fast Charging & 600W Power, FREE SHIPPING | 96.4% |
![]() | $287.57 | Condition is New, EcoFlow River 2 240 Portable Power Station, 243Wh LiFeP04 Battery, 2 Up to 600W, shipping cost = $71.88 | 100.0% |
![]() | $369.99 | Top Pick! Condition is New, EcoFlow RIVER Pro Portable Power Station 720Wh 600W Solar Generator Black, FREE SHIPPING | 99.5% |
![]() | $389.95 | Condition is New, EcoFlow River 3 Plus 554Wh 600W Portable Power Station with EB300 Extra Battery, FREE SHIPPING | 98.6% |
![]() | $405.22 | Condition is New, ECOFLOW RIVER PRO Portable Power Station - 720Wh Battery - 600W output; 200W Sol, shipping cost = $68.00 | 96.6% |
![]() | $465.00 | Condition is New, EcoFlow River 288Wh Portable Power Station 600W Solar Generator For RV Camping, shipping cost = $25.00 | 0.0% |
![]() | $498.75 | Condition is New, EcoFlow River 3 Plus 572Wh 600W Portable Power Station with EB300 Extra Battery, FREE SHIPPING | 99.2% |
![]() | $535.00 | Condition is New, EcoFlow River Max 600W Generator, FREE SHIPPING | 100.0% |
![]() | $543.99 | Condition is New, 256Wh Portable Power Station 1 Hour Fast Charge 600W AC Outlets Solar Generator, FREE SHIPPING | 99.8% |
![]() | $586.25 | Top Pick! Condition is New, EcoFlow River 3 Plus 858Wh 600W Portable Power Station with EB600 Extra Battery, FREE SHIPPING | 99.2% |
![]() | $658.26 | Condition is New, EcoFlow RIVER 3 Max Plus Portable Power Station Extra Battery Backup 600W Output, shipping cost = $52.14 | 83.3% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $187.95 | Condition is Used, EcoFlow River 288Wh Portable Power Station 600W Solar Generator For RV Camping, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $129.99 | Condition is For parts or not working, EcoFlow River Extra Battery Model No. EF4-MAX KIT 288Wh 28.8V 600W Used AS IS, shipping cost = $15.00 | 99.5% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $200.00 | Condition is Open box, EcoFlow Portable Power Station RIVER 3 230, 230Wh LiFePO4 Battery, 600w Surge, shipping cost = $83.15 | 100.0% |

The EcoFlow River 600W Portable Solar Generator, model EFRC421, is a versatile and powerful energy solution designed for those who seek uninterrupted power on-the-go. This compact generator boasts an impressive capacity of 612Wh (11.1V 55Ah) and a continuous power output of 600 watts, making it suitable for powering a wide range of appliances and devices.
The EcoFlow River is an eco-friendly alternative to traditional gas-powered generators. It harnesses the power of sunlight through its integrated solar panels, which can be charged separately or directly from the sun, allowing for a renewable and sustainable energy source. This generator is also equipped with a lithium iron phosphate (LiFePO4) battery, offering a longer lifespan, higher safety, and superior performance compared to other battery types.
The EcoFlow River 600W Portable Solar Generator is designed with convenience in mind. It features multiple charging options, including solar panels, a car charger, and a wall outlet, ensuring that you can keep your generator charged no matter where your adventure takes you. In addition, it comes with a variety of output ports, including two AC outlets, two USB-A ports, one USB-C port, and a 12V carport, allowing you to easily charge and power various devices.
The generator's digital display shows real-time information, such as battery level, input and output power, and charging status, giving you complete control and visibility over your power usage. It also comes with an intuitive and user-friendly X-Boost technology, which allows you to temporarily increase the generator's power output by up to 25% to handle power-hungry appliances.
This portable generator is built with durability and reliability in mind, featuring a rugged design, water-resistant exterior, and sturdy handle, making it suitable for outdoor use and harsh environments. It is also compact and lightweight, making it easy to transport and carry with you on your adventures.
In summary, the EcoFlow River 600W Portable Solar Generator is a versatile, powerful, and eco-friendly energy solution that offers the convenience of multiple charging options, a long-lasting lithium iron phosphate battery, and a variety of output ports. It is designed with durability, reliability, and convenience in mind, making it a must-have for those who seek uninterrupted power on-the-go.
The Ecoflow EFRC521 River 600W Portable Solar Generator is a versatile power solution that combines a battery generator with solar charging capabilities. Let's discuss its pros and cons to help you make an informed decision.
Pros:1. Solar Compatibility: The EFRC521 can be charged using solar panels, making it an eco-friendly option for those who want to minimize their carbon footprint.
2. Compact and Portable: With a weight of 12.5 lbs (5.67 kg) and dimensions of 11.8 x 8.3 x 9.4 inches (30 x 21.1 x 23.9 cm), this generator is easy to transport and can fit in small spaces.
3. Diverse Outputs: The generator offers various charging options, including USB-A, USB-C, 12V, and 110V outlets. This makes it suitable for charging a wide range of devices.
4. Battery Management System: The EFRC521 comes with a built-in Battery Management System (BMS) that protects the battery from overcharging, over-discharging, and short-circuiting.
5. Rechargeable Lithium-ion Battery: The 51Ah lithium-ion battery can be recharged over 3000 times, providing a long lifespan compared to lead-acid batteries.
6. Quiet Operation: The generator operates quietly, making it ideal for camping or other situations where noise levels are a concern.
Cons:1. Limited Power Output: With a maximum power output of 600W, this generator may not be suitable for powering high-demand appliances or tools.
2. Solar Charging Efficiency: Although the EFRC521 can be charged using solar panels, the charging efficiency is relatively low, taking several hours to fully charge the battery.
3. Limited Expansion: The generator does not come with built-in ports for additional solar panels, limiting its ability to charge faster or from multiple sources.
4. Price: The Ecoflow EFRC521 is priced higher than some competing portable power stations, which may deter some potential buyers.
Conclusion:The Ecoflow EFRC521 River 600W Portable Solar Generator is a versatile and eco-friendly power solution that offers multiple charging options and a long-lasting battery. Its compact size and quiet operation make it an excellent choice for camping, tailgating, or emergency power backup. However, its limited power output and solar charging efficiency, as well as its higher price point, may deter some buyers.
Recommendation:If you're looking for a compact, portable power solution for charging smartphones, laptops, or small appliances, the Ecoflow EFRC521 is an excellent choice. Its solar compatibility and long-lasting battery make it a great eco-friendly option for those who want to minimize their carbon footprint. However, if you require a higher power output, you may want to consider a more powerful portable generator or solar panel system.
Details:
No UPC n/a serial# da06220b12dr cosmetic condition: this device is used in fair condition. There are many visible scratches and scuffs from everyday use. To coordinate pickup. Functionality condition: this device is in fully working, used condition.
Functionality condition: this device is in fully working, us condition. It has been tested to ensure all aspects are working as they should. Pay more point loam. Please view our close up photos, as these are taken of the actual item being offered for sale.
Free shipping. Model river 2 600W. Cosmetic condition: this device is using fair condition.
specifications slashgenerators:
- brand: Ecoflow
- mpn: Efr421
- model: 2 600w
- manufacturer warranty: No
- serial number: No Visible Serial
- type: Battery Generator
offer slashgenerators:
- started: august 7, 2025
- options: ship-to-home
- sold #: 15
- prices: $129.99–$658.26
- item condition:
- New
- Used
- For parts or not working
- Open box
- in stock #: 5
- availability: in stock
returns slashgenerators:
- paid by: seller
- time: 30 days
- method: money back
- policy: returns accepted
payments slashgenerators:
- credit card: discover
- wallet: paypal
- other
shipping slashgenerators:
- class: standard
- type: fixed
- transit: 5-11 days
- service: usps ground advantage
- carrier: usps
seller slashgenerators:
- city: la jolla, california
- # reviews: 232
- rating: 96.8%
general slashgenerators:
- category: Home & Garden > Yard, Living > Outdoor Power Equipment > Generators
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