Portable power stations are becoming essential for campers, van lifers, outdoor enthusiasts, and homeowners looking for reliable backup power solutions. EcoFlow has established itself as a leading brand, offering high-performance power stations designed to suit different energy needs.
Among its most popular models, the EcoFlow River 2 and the EcoFlow Delta 2 stand out as two of the most efficient and versatile options. However, they serve different purposes, with distinct differences in capacity, power output, recharging speed, and portability.
In this detailed comparison, we will analyze the EcoFlow River 2 vs. EcoFlow Delta 2, helping you decide which power station is the right investment for your energy needs.
Contents
Differences EcoFlow River 2 vs EcoFlow Delta 2
Below is a summary of the specifications:
Battery Capacity and Expandability
Battery capacity plays a critical role in determining how long a power station can run your devices.
The EcoFlow River 2 has a 256Wh battery, making it ideal for short outdoor trips, weekend camping, and powering smaller devices such as smartphones, laptops, small fans, and lights. However, it does not support battery expansion, meaning once the battery is depleted, recharging is necessary to continue using the station.
On the other hand, the EcoFlow Delta 2 features a 1,024Wh battery, which is four times the capacity of the River 2. This larger capacity allows the Delta 2 to power larger appliances such as mini-fridges, coffee makers, and power tools. Moreover, it supports expandable battery options, allowing users to connect additional EcoFlow Smart Batteries, extending the total battery capacity up to 3,000Wh. This makes the Delta 2 a more versatile option for users who need longer runtimes or plan to power more demanding devices.
Winner: EcoFlow Delta 2
With a larger base capacity and the option for expandability, the EcoFlow Delta 2 is the superior option for users needing more power for heavy-duty applications.

Power Output and Device Compatibility
The power output of a power station determines which devices it can run efficiently.
The EcoFlow River 2 offers 300W continuous output with a 600W surge capacity. This power is suitable for charging small electronics, running portable fans, and powering devices like mini-fridges or CPAP machines. However, it is not capable of handling high-wattage devices like microwaves, space heaters, or large air conditioners.
In contrast, the EcoFlow Delta 2 provides a 1,800W continuous output and a 2,400W surge capacity, making it capable of powering larger appliances such as refrigerators, coffee makers, and air conditioners. Its two AC outlets provide flexibility for powering multiple devices at once, making the Delta 2 an ideal solution for home backup, RV use, or off-grid living.
Winner: EcoFlow Delta 2
With its significantly higher output and surge capacity, the EcoFlow Delta 2 is the best choice for users who need to run high-wattage appliances or multiple devices simultaneously.
Charging Speed and Solar Compatibility
Charging speed is an important feature, especially when you’re relying on a portable power station for continuous energy while on the move. Both the EcoFlow River 2 and EcoFlow Delta 2 offer rapid charging, making them convenient for users who need to recharge quickly.
The EcoFlow River 2 can charge from 0% to 80% in just 1 hour, and takes 1.5 hours to reach a full 100% charge. It also supports 220W solar input, enabling it to recharge fully in about 3-4 hours under optimal sunlight conditions.
The EcoFlow Delta 2 also offers 1-hour AC charging for 0% to 100%, though it takes 1.3 hours to charge fully. Like the River 2, the Delta 2 supports 220W solar input, enabling it to recharge in a similar timeframe when exposed to optimal sunlight. However, the Delta 2 excels when it comes to powering larger devices, making its charging efficiency more relevant for users who need high power for extended periods.
Winner: EcoFlow River 2
While both stations offer similar charging speeds, the EcoFlow River 2 is more efficient in terms of total charging time, particularly for users needing to recharge smaller devices quickly.

Portability and Weight
Portability is an essential factor for users who need to move their power station regularly. A lightweight and compact design can make a big difference, especially for camping or road trips.
The EcoFlow River 2 is incredibly lightweight, weighing just 3.5 kg, making it easy to carry and store. Its compact design ensures that it can fit into smaller spaces in vehicles or carry-on luggage, which is perfect for short trips or light outdoor use.
The EcoFlow Delta 2, on the other hand, weighs 7.5 kg, which is significantly heavier due to its larger capacity and higher power output. While it is still portable, its added weight makes it less convenient for users who prioritize easy transport.
Winner: EcoFlow River 2
For users who value portability, the EcoFlow River 2 is the best choice due to its lighter weight and more compact design.
Durability and Battery Lifespan
Durability is essential for any power station, particularly if it will be used in outdoor environments or for frequent use. Both the EcoFlow River 2 and EcoFlow Delta 2 utilize LiFePO₄ (LFP) battery technology, known for its long lifespan, safety, and thermal stability. Both power stations are rated for 3,000+ charge cycles before reaching 80% capacity, ensuring long-term reliability.
Winner: Tie
Both models offer outstanding durability and battery lifespan, thanks to the LiFePO₄ technology, making them both great choices for long-term use.
Quick Rundown Of EcoFlow River 2
Quick Rundown Of EcoFlow Delta 2
Conclusion
The choice between the EcoFlow River 2 and the EcoFlow Delta 2 depends largely on your energy needs and usage scenarios.
The EcoFlow River 2 is best for users who need a compact, affordable, and lightweight power station for small devices, short trips, or light usage. It offers great value for those who don’t require a large battery capacity or high power output.
On the other hand, the EcoFlow Delta 2 is ideal for those who need more power, expandability, and the ability to run multiple devices or larger appliances. It is a better option for home backup, RV use, or heavy-duty power needs.
Final Recommendation
- Choose the River 2 if you’re looking for a budget-friendly, portable solution for light tasks.
- Choose the Delta 2 if you need expandability, greater power output, and the ability to handle larger devices or multiple devices simultaneously.
For those seeking heavy-duty performance and expandability, the EcoFlow Delta 2 is the clear winner.