In the rapidly evolving world of portable power stations, two standout options for users looking for compact, efficient, and reliable power sources are the Anker Solix C300 vs EcoFlow River 3. Both of these models cater to individuals who need lightweight power solutions for camping, RV travel, emergency backup, and outdoor adventures.
However, they differ in terms of battery technology, power output, charging speed, and overall performance. In this comprehensive comparison, we evaluate the Anker Solix C300 vs. EcoFlow River 3 to help you determine which one suits your needs best.
Contents
Differences Anker Solix C300 vs EcoFlow River 3
Below is a summary of the specifications:
Battery Capacity and Lifespan
Battery capacity is a crucial factor when choosing a portable power station, as it determines how long the device can run before needing a recharge.
The Anker Solix C300 has a 300Wh battery capacity, which provides slightly longer runtimes compared to the EcoFlow River 3’s 245Wh. Both models use LiFePO₄ (LFP) battery technology, ensuring greater longevity, safety, and reliability compared to traditional lithium-ion batteries. Each battery is rated for 3,000+ charge cycles, meaning they can last for years without significant degradation.
Winner: Anker Solix C300
With more battery capacity, the Solix C300 offers a longer runtime, making it a better choice for those who need extended power on the go.

Power Output and Device Compatibility
Power output is essential when determining which devices a power station can support.
Both the Anker Solix C300 and EcoFlow River 3 provide 300W of continuous power output and 600W of surge capacity, meaning they can handle small appliances, smartphones, tablets, laptops, and portable fans. Each model includes two AC outlets, allowing users to power multiple devices simultaneously.
Since both models have similar output capacities, they perform equally well for small electronic devices.
Winner: Tie
Both power stations provide the same level of power output, making them equally effective for running small appliances and charging electronics.
Charging Speed and Solar Input
Charging speed is another critical factor, particularly for users who need quick power replenishment while off-grid.
The Anker Solix C300 supports up to 100W of solar input, while the EcoFlow River 3 offers slightly more at 110W. In terms of AC charging speeds, the EcoFlow River 3 recharges slightly faster (1.2 hours) compared to the Solix C300 (1.5 hours). However, the difference is minimal and unlikely to be noticeable in practical usage.
Winner: EcoFlow River 3
With slightly faster charging and a marginally higher solar input, the River 3 has a minor advantage in recharging efficiency.

Portability and Weight
Portability is a crucial aspect, especially for users who frequently travel, camp, or need a lightweight power source.
The EcoFlow River 3 weighs 7.7 lbs (3.5 kg), making it slightly lighter than the Anker Solix C300, which weighs 8.3 lbs (3.7 kg). While both models are compact and easy to carry, the River 3 is marginally more portable, making it an excellent choice for backpacking, outdoor trips, and travel.
Winner: EcoFlow River 3
For users who prioritize lightweight power stations, the EcoFlow River 3 is a slightly better option.
Durability and Battery Lifespan
Both models feature LiFePO₄ (LFP) battery technology, which is known for long life, safety, and heat resistance. The 3,000+ charge cycles mean that users can expect years of reliable performance from either power station.
Winner: Tie
Both power stations offer excellent durability and long-lasting battery performance.
Quick Rundown Of Anker Solix C300
Quick Rundown Of EcoFlow River 3
Conclusion
Both the Anker Solix C300 and EcoFlow River 3 are excellent portable power stations designed for small appliances, outdoor travel, and emergency backup. However, the best choice depends on your specific needs.
The Anker Solix C300 is the better choice for users who prioritize longer battery runtime and need more stored power per charge. It offers a higher 300Wh capacity, which means less frequent recharging during trips.
On the other hand, the EcoFlow River 3 is the better option for those who value lightweight portability and faster charging times. It recharges slightly faster and is easier to carry, making it ideal for frequent travelers and campers.
Final Recommendation
- Choose the Anker Solix C300 if you need longer battery life and more stored energy per charge.
- Choose the EcoFlow River 3 if you prioritize portability, faster charging, and lightweight design.
For most users, the Anker Solix C300 provides better overall value, but both models are excellent compact power stations tailored for portable energy needs.