Anker Portable Power Station SOLIX C300, vs EF ECOFLOW DELTA 2 Smart Extra Battery,
Updated July 2026 — Anker Portable Power Station SOLIX C300, wins on portability, EF ECOFLOW DELTA 2 Smart Extra Battery, wins on user control and power output.
The Anker Portable Power Station SOLIX C300 is a more portable and budget-friendly option, while the EF ECOFLOW DELTA 2 Smart Extra Battery offers significantly higher capacity and output for demanding needs.
Why Anker Portable Power Station SOLIX C300, is better
Price
SOLIX C300 is $249.99 compared to DELTA 2's $379.00.
Portability
SOLIX C300 is 15% smaller and easier to carry.
Noise Level
SOLIX C300 operates at a quiet 25dB.
Why EF ECOFLOW DELTA 2 Smart Extra Battery, is better
Power Capacity
DELTA 2 offers up to 2048Wh compared to SOLIX C300's 288Wh.
Output Power
DELTA 2 has a 1800W output versus SOLIX C300's 300W.
Versatile Charging
DELTA 2 supports more charging methods and faster charging.
Overall score
Specifications
| Spec | Anker Portable Power Station SOLIX C300, | EF ECOFLOW DELTA 2 Smart Extra Battery, |
|---|---|---|
| Battery Type | LiFePO4 | LiFePO4 |
| Charge Time | 50 mins to 80% | 80 mins to 80% |
| Warranty | 5 years | N/A |
| Cycles | 3000 | 3000+ |
| Ports | 8 | 15 |
Dimension comparison
Overview of the Anker Portable Power Station SOLIX C300 and EF ECOFLOW DELTA 2 Smart Extra Battery
The Anker Portable Power Station SOLIX C300 is priced at $249.99, making it a more budget-friendly option compared to the EF ECOFLOW DELTA 2 Smart Extra Battery, which costs $379.00. While both are built on advanced LiFePO4 battery technology, they cater to different needs and capacities, influencing their suitability for various users.
The SOLIX C300 delivers a capacity of 288Wh and a continuous output of 300W, making it ideal for outdoor activities such as camping and traveling. In contrast, the DELTA 2 Smart Extra Battery substantially boosts the capacity of the DELTA 2 power station to 2048Wh and features a higher output of 1800W, making it more appropriate for home backup power or extensive outdoor use.
Power Capacity Comparison
When it comes to power capacity, the EF ECOFLOW DELTA 2 Smart Extra Battery significantly outshines the Anker Portable Power Station SOLIX C300. The DELTA 2 provides a robust 1024Wh, which can be expanded to 2048Wh when combined with the extra battery. This means users can easily handle a wider range of devices and applications, from home appliances to power tools.
In contrast, the SOLIX C300 offers a more compact capacity of 288Wh. While this is sufficient for charging small devices like phones and laptops, it may not meet the demands of larger appliances or more extended usage scenarios. Therefore, if power capacity is your primary concern, the DELTA 2 is the clear winner.
Charging Options and Speed
Both products offer versatile charging methods, but the speed and options differ. The Anker Portable Power Station SOLIX C300 can achieve an impressive 80% charge in just 50 minutes via a wall outlet, and it also supports multiple recharging methods, including solar panels and car charging. This flexibility is beneficial for users who need to recharge on the go.
On the other hand, the EF ECOFLOW DELTA 2 Smart Extra Battery can charge from 0 to 80% in just 80 minutes using a wall outlet, which is slightly slower than the SOLIX C300. However, it also supports charging via solar panels, car outlets, and even a Smart Generator. This range of options might appeal to those looking for versatility in outdoor settings.
Portability and Design
Portability is a significant factor for users who plan to take their power stations on the go. The Anker Portable Power Station SOLIX C300 is designed with travel in mind, being 15% smaller than similar products, which enhances its portability. Additionally, it has a travel-friendly design that allows for easy carrying, making it a great choice for spontaneous adventures.
Conversely, the EF ECOFLOW DELTA 2 Smart Extra Battery is designed as an expansion battery rather than a standalone portable solution. While it provides substantial power, its size and weight make it less convenient for transport compared to the more compact SOLIX C300. For those who prioritize portability, the SOLIX C300 stands out.
Noise Levels
A unique feature of the Anker Portable Power Station SOLIX C300 is its remarkably quiet operation. Emitting only 25dB of noise from a distance of 3.3 feet, it allows users to enjoy nature without disturbance, making it an excellent choice for camping or quiet outdoor activities.
In contrast, the EF ECOFLOW DELTA 2 Smart Extra Battery does not specify noise levels, which may suggest a more conventional operation that might not be as quiet as the SOLIX C300. For users sensitive to noise or seeking a peaceful outdoor experience, the quiet operation of the SOLIX C300 is a notable advantage.
Bestselling Status
The Anker Portable Power Station SOLIX C300 currently boasts a sales rank of 2705, indicating its popularity among consumers. This suggests a solid reputation and a level of trust among users, which can be reassuring for potential buyers.
The EF ECOFLOW DELTA 2 Smart Extra Battery, however, has a higher sales rank of 11964, which could imply that it might not be as widely chosen as the SOLIX C300. While sales rank does not always equate to quality, it can provide insight into consumer preference and market reception.
Durability and Lifespan
Durability and lifespan are critical considerations when investing in a power station. The Anker Portable Power Station SOLIX C300 is built to last, featuring LiFePO4 batteries designed for up to 3,000 cycles, and it comes with a 5-year warranty. This level of durability ensures that users can rely on it for years of service.
Similarly, the EF ECOFLOW DELTA 2 Smart Extra Battery also boasts a lifespan of over 3,000 cycles, indicating strong durability. However, it does not mention a warranty period, which could be a deciding factor for some consumers. Both products promise longevity, but the SOLIX C300 provides added peace of mind with its warranty.
Which should you buy?
Choosing between the Anker Portable Power Station SOLIX C300 and the EF ECOFLOW DELTA 2 Smart Extra Battery ultimately depends on your specific needs. If you're looking for a portable, travel-friendly option with a lower price point at $249.99, the SOLIX C300 is an excellent choice. It excels in portability, charging speed, and quiet operation, making it suitable for outdoor adventures.
However, if you require higher power capacity for home backup or extensive outdoor uses, the EF ECOFLOW DELTA 2 Smart Extra Battery, despite its higher price of $379.00, would be the better option. It offers substantial power capabilities and versatile charging methods.
In summary, consider your primary usage scenarios, power needs, and budget when making your decision.

