In today’s fast-paced world, portable power stations have become essential for outdoor adventures, emergency backup, and off-grid living. Among the most popular models, the Anker 535 vs EcoFlow River 2 stand out as compact, efficient, and highly portable power solutions. While both offer reliable battery technology, fast charging, and multiple output options, they cater to different user needs.
In this comprehensive comparison, we will analyze battery capacity, output power, charging speed, portability, and overall performance to determine which model is the best investment for your power needs.
Contents
Differences Anker 535 vs EcoFlow River 2
Below is a summary of the specifications:
Battery Capacity and Expandability
Battery capacity is one of the most important factors when choosing a portable power station, as it determines how long your devices can run before needing a recharge.
The Anker 535 features a 512Wh battery, which is twice the capacity of the EcoFlow River 2. This makes it better suited for longer trips, emergency backup, or running small appliances for extended periods.
On the other hand, the EcoFlow River 2 comes with a 256Wh battery, which is more compact and lightweight but may require more frequent recharging if used for high-energy devices.
Winner: Anker 535
With double the battery capacity, the Anker 535 is the better choice for users who need longer power runtimes.

Power Output and Device Compatibility
Power output determines which devices and appliances a power station can support.
The Anker 535 provides 500W of continuous power and 750W surge capacity, making it suitable for running laptops, mini-fridges, lights, and even some kitchen appliances.
The EcoFlow River 2, in contrast, has a 300W continuous output with a 600W surge capacity, meaning it can power basic devices like phones, tablets, small fans, and LED lights, but struggles with higher-wattage appliances.
Winner: Anker 535
With higher power output and better surge capacity, the Anker 535 is the superior choice for running multiple devices or high-power appliances.
Charging Speed and Solar Input
Fast charging is essential for keeping your power station ready to go.
The EcoFlow River 2 stands out with rapid AC charging, reaching 100% in just one hour. This is significantly faster than the Anker 535, which takes 2.5 hours to charge fully.
Solar input is another key factor. The Anker 535 supports up to 200W solar charging, while the EcoFlow River 2 only supports 110W. This means the Anker 535 can recharge faster using solar panels, making it better suited for off-grid and outdoor use.
Winner: Tie
The EcoFlow River 2 wins in AC charging speed, while the Anker 535 is better for solar recharging.

Portability and Weight
For users who prioritize lightweight and easy-to-carry designs, portability is a crucial factor.
The EcoFlow River 2 weighs just 7.7 lbs (3.5 kg), making it one of the most portable power stations available. It is ideal for travel, camping, and short-term use.
The Anker 535, at 16.7 lbs (7.6 kg), is more than twice the weight of the EcoFlow River 2. While still portable, it is less convenient for users who need an ultra-lightweight power source.
Winner: EcoFlow River 2
With its ultra-lightweight design, the EcoFlow River 2 is the better option for users prioritizing portability.
Durability and Battery Lifespan
Both models use LiFePO₄ (LFP) battery technology, known for long lifespan, safety, and efficiency. Each power station offers 3,000+ charge cycles, ensuring years of reliable performance.
Winner: Tie
Both models have exceptional durability and long-lasting battery technology.
Quick Rundown Of Anker 535
Quick Rundown Of EcoFlow River 2
Conclusion
The Anker 535 is the better choice for users who need more battery capacity, higher power output, and better solar charging. It is ideal for camping, home backup, and powering small appliances for extended periods.
The EcoFlow River 2, on the other hand, is perfect for users who prioritize portability, fast AC charging, and lightweight design. It is best suited for travelers, weekend campers, and those who need a compact power station for essential devices.
Final Recommendation
- Choose the Anker 535 if you need higher battery capacity, better power output, and extended runtime.
- Choose the EcoFlow River 2 if you need a lightweight, travel-friendly power station with super-fast AC charging.
For versatility and performance, the Anker 535 is the superior choice.