Two series, many possibilities. DELTA and RIVER power stations from EcoFlow offer mobile energy for a variety of needs. But what are the differences between the two product lines—and which is the right choice for different applications?
We provide a concise overview of the most important features, strengths and areas of application of the two series.
DELTA Series - Power for large projects

The DELTA series is aimed at anyone who needs a lot of power and capacity – whether for home use, as an emergency power solution, or for energy-hungry devices while camping or in a van.
Highlights of the DELTA series:
- High output power (up to 3600 W) – suitable for refrigerators, air conditioners, tools and more
Large battery capacity (up to over 3.5 kWh) – perfect for longer self-sufficiency
Expandable with additional batteries (e.g. DELTA Pro Extra Battery)
230 V AC outputs with true sine wave – for sensitive electronics
Fast charging via AC, solar, vehicle or EcoFlow Smart Generator
Smart energy management via app
Area of application:
Ideal for power-intensive applications , emergency power supply at home , tools , events , long off-grid trips or as a central power source in self-sufficient projects.
RIVER series - compact, lightweight, flexible

The RIVER series offers significantly more compact power stations for those who want to stay mobile without sacrificing energy. It's aimed at outdoor enthusiasts, vanlife fans, or anyone looking for a flexible, portable power solution for on the go.
Highlights of the RIVER series:
- Compact design, low weight – easy to transport
Modular expansion for many models (e.g. with additional battery)
Up to 1600 W output power in X-Boost mode
Ideal for laptops, cameras, cool boxes, drones and small household appliances
App control Solar compatibility
Area of application:
Perfect for day trips , camping , photography , light consumer use on the go or as a complementary solution in a van .
Which power station is suitable for whom?
The choice between the EcoFlow RIVER and DELTA series depends largely on individual energy needs, the type of use, and preferred application scenarios. Both series offer high-quality mobile energy supplies – but with different focuses.
RIVER Series – For mobile, flexible power supply on the go
The RIVER series is designed for anyone looking for a portable, compact, and versatile power solution for on-the-go use. It's particularly well-suited for:
- Outdoor enthusiasts who need power for drones, cameras, laptops, or small coolers while hiking, camping, or on weekend trips.
- Vanlife fans who live in small spaces and rely on lightweight equipment, but still don't want to do without energy for lighting, small household appliances or entertainment electronics.
- Photographers and content creators who work in remote locations and need a quiet, compact power source for their equipment.
- Travelers and festival-goers who want to be independent of the nearest power outlet but don't want to carry heavy equipment.
- Security-conscious users who want a small emergency power solution for routers, smartphones or lights in an emergency.
Thanks to the modular design (e.g. with the RIVER 3 Plus or Max), the capacity can be flexibly adjusted – a great advantage for users with varying energy requirements.
DELTA Series – For high demands, stationary applications & emergency power
The DELTA series is designed for users who require more performance and storage capacity. It's the right choice if:
- Power-hungry devices such as tools, kettles, microwaves, air conditioners or refrigerators need to be operated – for example in the garden, at events, on construction sites or in a van.
- Emergency power supply in the household is an issue – thanks to the high capacity and UPS function (under 10 ms), the internet connection, a refrigerator or even parts of the heating system can be operated for hours.
- Whether you're planning a self-sufficient lifestyle or long trips, the capacity of the DELTA 3, for example, can be expanded to up to 5 kWh with additional batteries. Ideal for off-grid projects.
- Large solar systems are to be used – all models are solar-capable and enable fast charging with multiple panels.
- Professionals in the trades or event sector need a reliable, powerful energy source that also protects sensitive devices thanks to a true sine wave.
With a higher weight and larger dimensions, the DELTA series is optimized less for mobility than for performance and capacity – ideal for stationary use or as a central power hub in a camper.
DELTA or RIVER - The decision at a glance:
Here is a brief summary of the biggest differences between the two series:
| feature | DELTA series | RIVER Series |
| Performance | High (up to 3600 W) | Medium (up to 800–1600 W) |
| capacity | Large – also usable as emergency power |
Small to medium – mobile optimized |
| Size | Large, stationary & rollable | Compact, lightweight & portable |
| Mission | House, workshop, large equipment | Outdoor, travel, mobile devices |
| Target group | Home users, professionals | Travelers, vanlifers, outdoor enthusiasts |
The latest additions to the RIVER and DELTA series are the RIVER 3 and DELTA 3 series, respectively. You can see how they differ and what their special features are here:
| Model | capacity | Continuous power | Top performance | Weight | Special features |
| RIVER 3 | 245 Wh | 300 W | 600 W | approx. 3.5 kg | Compact, quiet (<30 dB), IP54 certified, UPS function |
| RIVER 3 Plus | 286 Wh | 300 W | 600 W | approx. 4.7 kg | Expandable to 858 Wh, UPS function |
| RIVER 3 Max | 572 Wh | 600 W | 1200 W | approx. 8 kg | UPS function, IP54 certified |
| RIVER 3 Max Plus | 858 Wh | 600 W | 1200 W | approx. 10.3 kg | Combination of RIVER 3 Plus and additional battery, UPS function, IP54 certified |
| DELTA 3 | 1024 Wh | 1800 W | 3600 W | approx. 12.5 kg | Expandable to 5 kWh, UPS function (<10 ms), quiet operation (<30 dB) |
| DELTA 3 Plus | 1024 Wh | 1800 W | 3600 W | approx. 12.5 kg | Expandable to 5 kWh, UPS function (<10 ms), quiet operation (<30 dB) |
| DELTA 3 1500 | 1536 Wh | 1800 W | 3600 W | approx. 16.5 kg | UPS function, quiet operation (<35 dB) |
| DELTA 3 Pro | 4096 Wh | 4000 W | 8000 W | approx. 51.5 kg | Expandable up to 12 kWh, quiet operation (<35 dB), UPS function |
Conclusion
Both series offer state-of-the-art technology, smart controls, and high efficiency – the DELTA series is the right choice for anyone requiring maximum performance and storage capacity . The RIVER series scores with compactness, flexibility , and an excellent weight-to-performance ratio for on-the-go use.
👉 Both series are available in our shop!






