Anker SOLIX C1000 vs EcoFlow RIVER 3 Plus
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
EcoFlow RIVER 3 Plus costs $670 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX C1000 holds 269% more energy (1056Wh vs 286Wh), so it runs the same load proportionally longer.
- Anker SOLIX C1000 has 1200W more surge headroom (2400W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 3 Plus is 18.5 lb lighter (9.9 lb vs 28.44 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 default recommendation for most people. It clears the 1kWh bar, recharges in under an hour, and undercuts almost everything with comparable specs.
Best for: First-time buyers who want one unit for camping and short outages without overpaying.
Where it falls short:
- 2400W surge won't start a sump pump or well pump
- Only 1056Wh — a fridge-plus-devices outage tops out around a day
Doubles the River 3's output for $90 more, and adds an expansion battery port. The better buy of the two unless weight is everything.
Best for: Campers who want one unit that covers devices plus the occasional small appliance.
Where it falls short:
- 286Wh alone is a single evening of real use
- 220W solar input is modest
| Spec | Anker SOLIX C1000 | EcoFlow RIVER 3 Plus |
|---|---|---|
| Price | $999 | $329 |
| Capacity | 1056 Wh | 286 Wh |
| Continuous output | 1800 W | 600 W |
| Surge output | 2400 W | 1200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 28.44 lb | 9.9 lb |
| Max solar | 600 W | 220 W |
| Recharge time (faster wins) | 58 min | 1h |
Runtime head-to-head
| Appliance | Anker SOLIX C1000 | EcoFlow RIVER 3 Plus |
|---|---|---|
| Refrigerator | 15.0 hrs | 4.1 hrs |
| Mini fridge | 28.5 hrs | 7.7 hrs |
| Chest freezer | 11.2 hrs | 3.0 hrs |
| CPAP machine | 22.4 hrs | 6.1 hrs |
| Sump pump | ❌ | ❌ |