EcoFlow DELTA 3 Max vs Anker SOLIX C2000 Gen 2
EcoFlow DELTA 3 Max (2,048 Wh, 2,400 W) vs Anker SOLIX C2000 Gen 2 (2,048 Wh, 2,400 W). Their batteries are about the same size, so the differences are in output, charging and features. Here is where each one comes out ahead, based on the manufacturers' published specs.
Each row has its own scale, and the longer bar fills the row. Figures are the manufacturers' published specs.
Choose the DELTA 3 Max for…
- starting pumps and compressors: 4,800 W vs 4,000 W surge
Choose the C2000 Gen 2 for…
- faster solar charging: up to 800 W vs 500 W of panels
- room to grow: expands to 4,096 Wh with extra batteries
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Our verdict
Two 2,048 Wh units, both rated for 2,400 W continuous, both with a 10 ms switchover. Runtime is identical: about 30 hours on a typical fridge and 58 on a CPAP in our calculator. But the Anker comes out ahead on most of the details.
The SOLIX C2000 Gen 2 takes 800 W of solar against 500 W, has six AC outlets (including a TT-30 for an RV) against four, has faster 140 W USB-C ports and weighs 41.7 lb against 44.8 lb. It can also add one extra battery for 4,096 Wh in total. The DELTA 3 Max can't be expanded.
The EcoFlow's edge is surge: 4,800 W against 4,000 W. That's useful if you need to start something with a big motor, like a well pump on a 120 V circuit or a large compressor.
EcoFlow doesn't publish a cycle-life figure for the DELTA 3 Max, which makes the long-term picture harder to judge. Unless that higher surge is the thing you need, we'd pick the C2000 Gen 2.
How we compared: the makers' published specs plus our runtime calculations. We haven't bench-tested these units ourselves.
Specs side by side
✓ marks the better figure where higher or lower is clearly better. Cycle-life claims use different end-of-life definitions (70% or 80% capacity), so we don't rank them.
| Spec | EcoFlow DELTA 3 Max | Anker SOLIX C2000 Gen 2 |
|---|---|---|
| Capacity | 2,048 Wh | 2,048 Wh |
| Continuous output | 2,400 W | 2,400 W |
| Surge output | 4,800 W | 4,000 W |
| Max solar input | 500 W | 800 W |
| Max AC charging power | 1,800 W | 1,800 W |
| Weight | 44.8 lb | 41.7 lb |
| Wh per pound | 45.7 | 49.1 |
| Expandable | No | Up to 4,096 Wh |
| 240 V output | No | No |
| UPS / EPS switchover | 10 ms | 10 ms |
| AC outlets | 4 | 6 |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Cycle life (maker claim) | — | 4,000 to 80% |
| Warranty | 5 years | 5 years |
| Buy | Check price on Amazon | Check price on Amazon |
How long each one runs everyday devices
Nonstop runtime for one device at a time, at typical average wattage with 85% inverter efficiency. ✓ marks the longest.
| Spec | EcoFlow DELTA 3 Max | Anker SOLIX C2000 Gen 2 |
|---|---|---|
| Phone charging · 10 W avg | 7.7 days | 7.7 days |
| Wi-Fi router + modem · 15 W avg | 4.8 days | 4.8 days |
| CPAP · 30 W avg | 2.4 days | 2.4 days |
| Laptop · 50 W avg | 35 hours | 35 hours |
| TV · 100 W avg | 17 hours | 17 hours |
| Starlink Standard · 90 W avg | 19 hours | 19 hours |
| Refrigerator · 58 W avg | 30 hours | 30 hours |
| Chest freezer · 29 W avg | 2.5 days | 2.5 days |
| Window AC · 225 W avg | 7.7 hours | 7.7 hours |
| Sump pump · 210 W avg | 8.3 hours | 8.3 hours |
| Microwave · 1,500 W avg | 1.2 hours | 1.2 hours |
| Space heater · 750 W avg | 2.3 hours | 2.3 hours |
Specs from EcoFlow, Jackery, BLUETTI, Anker, DJI and Goal Zero documents, as of September 2026. See each model's page for sources: EcoFlow DELTA 3 Max · Anker SOLIX C2000 Gen 2.
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