EcoFlow RIVER 2 ProvsAnker SOLIX C300
Choosing between the EcoFlow EcoFlow RIVER 2 Pro and Anker Anker SOLIX C300 comes down to your priorities: the EcoFlow RIVER 2 Pro delivers 768Wh with 800W continuous output, while the Anker SOLIX C300 offers 288Wh and 300W. We analyze capacity, output power, battery longevity, portability, and value to help you pick the right one.
Specifications Comparison
Key Differences Explained
Battery Capacity
The EcoFlow RIVER 2 Pro packs 768Wh — 2.7x the Anker SOLIX C300's 288Wh. That extra 480Wh means significantly longer runtime for appliances like mini-fridges, CPAP machines, or power tools.
Output Power
With 800W continuous output, the EcoFlow RIVER 2 Pro can handle heavier loads than the Anker SOLIX C300's 300W. This matters for high-draw appliances like microwaves, hair dryers, or power tools that demand consistent wattage.
Cost per Watt-Hour
At $0.41/Wh, the EcoFlow RIVER 2 Pro offers 53% better value per watt-hour than the Anker SOLIX C300 ($0.87/Wh). This metric helps you understand the raw cost of stored energy, regardless of other features.
Portability
At 8.2 lbs, the Anker SOLIX C300 is 9.2 lbs lighter than the EcoFlow RIVER 2 Pro (17.4 lbs). For camping, tailgating, or emergency kits where you need to carry your power station, that weight difference adds up quickly.
The Bottom Line
The Anker SOLIX C300 wins 3 out of 7 comparison categories against the EcoFlow RIVER 2 Pro's 2. It stands out with 288Wh capacity and 300W output at $249.99. However, the EcoFlow RIVER 2 Pro may still be the better choice if you prefer the EcoFlow ecosystem.
Choose EcoFlow RIVER 2 Pro if...
- You need maximum battery capacity — 768Wh gives you 167% more runtime than the Anker SOLIX C300
- You need to power high-wattage appliances up to 800W
Choose Anker SOLIX C300 if...
- Budget is a priority — save $65.01 compared to the EcoFlow RIVER 2 Pro
- Portability matters — at 8.2 lbs, it's 9.2 lbs lighter


