Anker SOLIX C1000 Portable Power Station, 1800W vs EF ECOFLOW DELTA 2 Smart Extra Battery,
Updated July 2026 — Anker SOLIX C1000 Portable Power Station, 1800W wins on output, EF ECOFLOW DELTA 2 Smart Extra Battery, wins on charge time and weight.
The Anker SOLIX C1000 offers superior charging speed and versatility, making it the better choice for most users. However, the DELTA 2 Smart Extra Battery is a more budget-friendly option for existing DELTA 2 owners.
Why Anker SOLIX C1000 Portable Power Station, 1800W is better
Charging Speed
Anker charges to 80% in 43 minutes.
Power Output
Anker has a surge capacity of 2400W.
Portability
Anker is 15% smaller than comparable units.
Why EF ECOFLOW DELTA 2 Smart Extra Battery, is better
Price
DELTA 2 is $50 cheaper.
Battery Expansion
DELTA 2 can expand capacity to 2048Wh.
User Monitoring
DELTA 2 has an onboard LCD screen.
Overall score
Specifications
| Spec | Anker SOLIX C1000 Portable Power Station, 1800W | EF ECOFLOW DELTA 2 Smart Extra Battery, |
|---|---|---|
| Battery Capacity | 1056Wh | 1024Wh |
| Peak Output | 2400W | 1800W |
| Charge Time (0-80%) | 43 min | 80 min |
| Battery Cycles | 3000 | 3000+ |
| Weight | 25 lbs | 30 lbs |
Dimension comparison
Overview of the Products
The Anker SOLIX C1000 Portable Power Station and the EF ECOFLOW DELTA 2 Smart Extra Battery both serve as reliable energy solutions, but they cater to different needs. The Anker SOLIX C1000 is primarily a standalone power station, while the DELTA 2 Smart Extra Battery is designed to expand the capacity of the DELTA 2 power station. The Anker unit is priced at $429.99, while the ECOFLOW option is more budget-friendly at $379.00, making it about 17% cheaper.
Charging Speed and Convenience
Charging speed is a significant factor for users who need power on the go. The Anker SOLIX C1000 boasts an impressive UltraFast recharging capability, achieving 80% battery capacity in just 43 minutes, with a full charge in under an hour. This feature positions it as an excellent choice for situations requiring quick energy replenishment. In contrast, the DELTA 2 Smart Extra Battery can charge from 0-80% in 80 minutes, which is slower compared to the Anker. Thus, if rapid charging is a priority, the Anker SOLIX C1000 stands out.
Battery Longevity and Reliability
Both products offer remarkable battery longevity with their LiFePO4 battery technology, ensuring they last for years. The Anker SOLIX C1000 provides an impressive lifespan of 3,000 cycles over a decade, while the DELTA 2 Smart Extra Battery also claims to last for years with 3,000+ cycles. While both units promise durability, the Anker's decade-long lifespan may provide added peace of mind for users looking for long-term reliability.
Power Output and Versatility
When it comes to power output, the Anker SOLIX C1000 leads with a surge capacity of 2400W and a continuous output of 1800W. This allows it to power 99% of appliances through 11 versatile ports, making it highly versatile for outdoor camping and home backup. The DELTA 2 Smart Extra Battery, while capable of powering 90% of home appliances with a combined output of 1800W when paired with the DELTA 2, does not offer the same range of ports as the Anker. Consequently, for users needing to power multiple devices simultaneously, the Anker may be the better option.
Portability and Design
The Anker SOLIX C1000 is designed to be 15% smaller than comparable 1kWh units, enhancing its portability for outdoor adventures. This compact design makes it an essential companion for camping and traveling. The DELTA 2 Smart Extra Battery, while portable, is primarily an expansion battery and is meant to complement the DELTA 2 power station rather than function independently. Therefore, if portability is a critical factor for outdoor activities, the Anker SOLIX C1000 is the clear winner.
User Control and Monitoring
User control and monitoring features differ between the two products. The Anker SOLIX C1000 offers customization of charging speeds and real-time tracking of power statistics via the Anker app. This level of control allows users to tailor their charging experience effectively. On the other hand, the DELTA 2 Smart Extra Battery includes an onboard LCD screen and an EcoFlow app for monitoring remaining charge and output hours. While both systems offer monitoring, the Anker's app appears to provide more customization options.
Intended Use Cases
The intended use cases for the two products highlight their differing functionalities. The Anker SOLIX C1000 is suitable for home backup during power outages, outdoor camping, and various off-grid scenarios thanks to its powerful output and extensive port options. Meanwhile, the DELTA 2 Smart Extra Battery is ideal for those who already own the DELTA 2 and need to expand its capacity for home backup or outdoor use. Thus, the choice largely depends on whether a user needs a standalone power station or an expansion battery.
Which should you buy?
Choosing between the Anker SOLIX C1000 Portable Power Station and the EF ECOFLOW DELTA 2 Smart Extra Battery ultimately depends on your specific needs. If you prioritize rapid charging, a compact design, and extensive output capabilities for diverse applications, the Anker SOLIX C1000 at $429.99 may be the right choice. However, if you are looking for a budget-friendly option to expand your existing DELTA 2 setup and do not require the same level of versatility, the DELTA 2 Smart Extra Battery at $379.00 could be more suitable. Both products have their strengths, so aligning your choice with your intended use is crucial.

