Portable power stations have become essential for camping, outdoor adventures, emergency backup, and off-grid living. Among the most compact and efficient options available today, the Anker Solix C300 vs EcoFlow River 2 stand out as two strong competitors. Both models offer lightweight designs, fast charging capabilities, and reliable power output, but they cater to slightly different needs.
In this in-depth comparison, we will analyze battery capacity, power output, charging speed, portability, and overall performance to determine which of these two compact power stations is the better choice for your specific needs.
Contents
Differences Anker Solix C300 vs EcoFlow River 2
Below is a summary of the specifications:
Battery Capacity and Lifespan
The Anker Solix C300 has a 299Wh LiFePO₄ battery, slightly larger than the 256Wh found in the EcoFlow River 2. Both power stations use long-lasting LFP battery technology, which provides over 3,000 charge cycles before degrading to 80% capacity.
Since the Anker Solix C300 has a higher battery capacity, it lasts longer on a single charge, making it a better option for users who need more runtime for small appliances, CPAP machines, or cameras.
Winner: Anker Solix C300
With more stored energy per charge, the Solix C300 offers better long-term usage.

Power Output and Device Compatibility
Both the Anker Solix C300 and the EcoFlow River 2 provide 300W of continuous power output, with a 600W surge capacity, allowing them to power laptops, smartphones, drones, and small appliances.
The EcoFlow River 2 has an advantage in USB-A ports, offering three instead of two, making it slightly better for users who need to charge multiple small devices simultaneously. However, for general device compatibility, both power stations perform equally well.
Winner: Tie
Both models provide equal output power, making them suitable for similar applications.
Charging Speed and Solar Input
One of the most significant differences between these two models is charging speed.
The EcoFlow River 2 supports fast AC charging of 360W, allowing it to reach 100% in just one hour. It also accepts up to 110W of solar input, making it faster for solar charging.
The Anker Solix C300, on the other hand, has a maximum input of 100W, resulting in slower charging times of 2.4 hours on AC power. If you need quick turnaround times, the EcoFlow River 2 is the clear winner.
Winner: EcoFlow River 2
The faster AC charging and better solar input give the EcoFlow River 2 the edge.

Portability and Weight
Both the Anker Solix C300 and the EcoFlow River 2 weigh 7.7 lbs (3.5 kg), making them easy to carry for outdoor trips, camping, and emergency use.
Both models have compact dimensions that allow them to fit into backpacks, car trunks, or storage spaces. Since portability is nearly identical, there is no clear winner in this category.
Winner: Tie
Both power stations offer the same weight and portability.
Durability and Battery Lifespan
Both models use LiFePO₄ (LFP) battery chemistry, known for long-lasting durability, higher safety standards, and better efficiency. The 3,000+ charge cycles ensure that users can recharge their units daily for nearly a decade without significant degradation.
Both brands also include high-quality build materials, making these sturdy and reliable choices for outdoor or home use.
Winner: Tie
Both models offer excellent durability and long-lasting battery life.
Quick Rundown Of Anker Solix C300
Quick Rundown Of EcoFlow River 2
Conclusion
Both Anker Solix C300 and EcoFlow River 2 offer great features for compact power stations, but the choice depends on your priorities.
If you prioritize longer runtime and need a slightly larger battery, the Anker Solix C300 is the better option. It is ideal for CPAP users, photographers, and those who need a bit more power per charge.
If you prioritize fast charging and solar input, the EcoFlow River 2 is the clear winner. It is perfect for users who need rapid recharges and better off-grid performance.
Final Recommendation
- Choose the Anker Solix C300 if you need longer battery life per charge and don’t mind slower charging speeds.
- Choose the EcoFlow River 2 if you prioritize fast charging and better solar input for quick recharges.
For overall performance and versatility, the EcoFlow River 2 edges out as the better choice.