Anker SOLIX C300 DC Power Bank Station, Outdoor vs EF ECOFLOW Portable Power Station River 2 Max 500,
Updated July 2026 — full head-to-head comparison.
Price Comparison
The Anker SOLIX C300 DC Power Bank Station is priced at $179.99, while the EF ECOFLOW Portable Power Station River 2 Max 500 comes in at $298.98. This makes the Anker approximately 40% cheaper than the EF ECOFLOW option. For those on a budget, the Anker may present a more appealing choice, especially considering both products serve similar functions. Despite the price difference, the features and capabilities of each power station warrant a closer examination to help you determine which one offers the best value for your needs.
Power Capacity
The Anker SOLIX C300 offers a capacity of 288Wh, while the EF ECOFLOW River 2 Max 500 provides a larger capacity of 499Wh. This means the EF ECOFLOW has about 73% more energy storage, making it a better option for users needing to power multiple devices or larger appliances. The Anker's 300W output is also lower than the EF ECOFLOW's 1000W capability, which allows the latter to run more demanding equipment simultaneously. If you require higher capacity for extended trips or power-hungry devices, the EF ECOFLOW clearly stands out in this comparison.
Charging Speed
In terms of charging speed, the EF ECOFLOW River 2 Max 500 boasts an impressive one-hour AC recharge time, which is significantly faster than the Anker SOLIX C300, which can reach 80% in one hour using a dual PD 3.1 USB-C port. The quick recharge of the EF ECOFLOW makes it particularly suitable for users who need to get back to using their devices quickly. Additionally, the EF ECOFLOW can also recharge in as little as 2.3 hours using solar power, providing flexibility in outdoor environments where AC outlets are not available.
Portability
When it comes to portability, the Anker SOLIX C300 is designed to be compact, being about 30% smaller than similar power stations. However, the EF ECOFLOW River 2 Max 500 is also lightweight, weighing only 13.3 lbs, making it easy to transport for outdoor activities like camping or RV trips. While both options prioritize portability, the Anker's smaller design may cater to users looking for a more compact solution, while the EF ECOFLOW offers a balance between size and higher capacity, which some users may find more useful.
Battery Type and Longevity
Both power stations feature LiFePO4 batteries, known for their safety and longevity. The Anker SOLIX C300 ensures durability with a three-year guarantee, while the EF ECOFLOW River 2 Max 500 promises over ten years of use with its advanced BMS protection. This longer lifespan of the EF ECOFLOW may be a significant factor for users looking for a long-term investment. Although both batteries are reliable, the difference in expected longevity could sway potential buyers toward the EF ECOFLOW if they prioritize a longer-lasting solution.
Versatility of Ports
The Anker SOLIX C300 offers seven device charging ports, including multiple USB-C and USB-A options, making it versatile for various devices. The EF ECOFLOW River 2 Max 500, in contrast, can support up to 11 devices simultaneously, featuring a range of ports from AC outlets to USB-C connections. This capacity for more simultaneous connections makes the EF ECOFLOW a superior choice for larger groups or situations where multiple devices need charging at the same time, enhancing its usability for outdoor gatherings or emergencies.
Solar Charging Capability
Both power stations support solar charging, but they differ in terms of efficiency and requirements. The Anker SOLIX C300 recommends using a 100W solar panel, while the EF ECOFLOW can recharge in as fast as 2.3 hours with a 220W solar input. This ability to recharge more quickly with solar power gives the EF ECOFLOW an advantage for users looking to harness clean energy efficiently. If solar charging is a significant consideration, the EF ECOFLOW's capabilities may be more appealing.
Which should you buy?
Choosing between the Anker SOLIX C300 and the EF ECOFLOW River 2 Max 500 ultimately depends on your specific needs. If budget is a primary concern, the Anker is about 40% cheaper and still provides essential power capabilities. However, if you need higher capacity, faster charging, and more versatility in device connections, the EF ECOFLOW is worth the extra investment. For outdoor enthusiasts who prioritize quick recharging and a longer-lasting battery, the EF ECOFLOW stands out as the superior option.

