Head to head
EcoFlow RIVER 2 vs Anker SOLIX C300
Anker SOLIX C300 stores more energy (288 Wh).
| EcoFlow RIVER 2 | Anker SOLIX C300 | |
|---|---|---|
| Capacity | 256 Wh | 288 Wh |
| Usable at 85% | 218 Wh | 245 Wh |
| Continuous output | 300 W | 300 W |
| Motor surge used | Not applied to motors | Not applied to motors |
| Resistive boost | X-Boost 600 W | SurgePad 600 W |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,000 to 80%+ | Not published |
| Weight | 7.7 lb | Not published |
| Dimensions | 9.6 × 8.5 × 5.7 | Not published |
| Outlets | 2 AC outlets, 300 W shared. The comparison also describes USB-A, USB-C, and DC ports without a port count. | AC outlets rated 300 W. USB-C and USB-A ports are described; the AC outlet count, weight, and cycle count are not in the spec text on the product page. |
| Launch price | Not verified | Not verified |
| Source | Manufacturer page | Manufacturer page |
Check a current price
These buttons are placeholders. A real affiliate URL, when one exists, is read from links.json.
Check priceOpens the manufacturer page. No affiliate link is set in links.json.
Check priceOpens the manufacturer page. No affiliate link is set in links.json.
Questions
How do the EcoFlow RIVER 2 and the Anker SOLIX C300 compare?
Anker SOLIX C300 stores more energy (288 Wh).
Which one runs longer?
EcoFlow RIVER 2 has 218 Wh usable in Willrun's math (256 Wh × 0.85). Anker SOLIX C300 has 245 Wh usable. Runtime still depends on the appliance's average draw.
Can cycle life be ranked between them?
The cycle quotes do not share a published endpoint, or one of them is missing. Willrun does not rank 70% retention against 80% retention.
Where do the numbers come from?
US/CA comparison table: 256 Wh, 2 AC outlets at 300 W, X-Boost 600 W, 7.7 lb, LiFePO4, 3,000 cycles to 80%+. EcoFlow describes the 600 W figure as surge with X-Boost. Willrun treats it as a resistive boost, not motor-start capacity. The manual language for X-Boost says it suits heating devices. Product page: 288 Wh and 300 W, with 600 W surge in the headline. The FAQ says the AC outlets deliver 300 W rated and 600 W with SurgePad. Willrun treats 600 W as SurgePad, not a separate motor-start rating. Weight and cycle life were not in that text.