EcoFlow RIVER 2 Pro vs Anker SOLIX C300
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
Anker SOLIX C300 costs $420 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow RIVER 2 Pro holds 167% more energy (768Wh vs 288Wh), so it runs the same load proportionally longer.
- EcoFlow RIVER 2 Pro has 1000W more surge headroom (1600W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker SOLIX C300 is 8.4 lb lighter (8.6 lb vs 17 lb).
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
The one you actually carry. At 17 lb it is light enough for one hand, yet unlike the true pocket units it has the 800W of output needed to run small appliances rather than just charge devices.
Best for: Backpackers, photographers and festival-goers who care about weight above all.
Where it falls short:
- 800W output limits you to electronics and small loads
- 220W solar input means slow off-grid top-ups
Anker's smallest. 288Wh at $179 with three USB-C ports — aimed squarely at people charging modern devices, not running appliances.
Best for: Content creators and travelers with a bag full of USB-C gear.
Where it falls short:
- 300W output is device-only territory
- 100W solar input
| Spec | EcoFlow RIVER 2 Pro | Anker SOLIX C300 |
|---|---|---|
| Price | $599 | $179 |
| Capacity | 768 Wh | 288 Wh |
| Continuous output | 800 W | 300 W |
| Surge output | 1600 W | 600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 17 lb | 8.6 lb |
| Max solar | 220 W | 100 W |
| Recharge time (faster wins) | 1h 10m | 1h |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | Anker SOLIX C300 |
|---|---|---|
| Refrigerator | 10.9 hrs | ❌ |
| Mini fridge | 20.7 hrs | 7.8 hrs |
| Chest freezer | 8.2 hrs | ❌ |
| CPAP machine | 16.3 hrs | 6.1 hrs |
| Sump pump | ❌ | ❌ |