For buyers who want a light, fast-charging 2 kWh unit with strong USB-C and an RV outlet.
Amazon $899.98 Anker $999.99The Anker SOLIX C2000 Gen 2 is the better portable power station overall, rated 4.2 to 3.8. The Anker SOLIX C2000 Gen 2 leads on battery life and solar input.
For buyers who want 2 kWh of fast-charging backup at a mid-range price and do not need heavy solar input.
Amazon $899 EcoFlow $899Prices were last checked October 20, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Anker SOLIX C2000 Gen 2 for battery life (LiFePO4, 4,000 cycles vs LiFePO4, 5-year warranty) and solar input (800 W max solar input vs 500 W max solar input).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 3 Max |
|---|---|---|
| Overall rating | 4.2/5 | 3.8/5 |
| Value 25% | 79 $0.44 per rated Wh | 79 $0.44 per rated Wh |
| Tested capacity 15% | 84 88% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 85 LiFePO4, 4,000 cycles | 70 LiFePO4, 5-year warranty |
| AC output 15% | 54 2,400 W continuous AC | 54 2,400 W continuous AC |
| Charging speed 10% | 80 0-100% on AC in 1 h 28 min | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 100 108 Wh per kg (41.7 lb (18.9 kg)) | 100 101 Wh per kg (44.8 lb (20.3 kg)) |
| Solar input 5% | 28 800 W max solar input | 11 500 W max solar input |
| Features 5% | 80 UPS (10 ms), expandable, 140 W USB-C | 75 UPS (10 ms), 100 W USB-C, app |
Independent capacity tests
Anker SOLIX C2000 Gen 2
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| CNET | 1,812 Wh | 88.5% | 480W load logged with HOBOware; round-trip efficiency 74.02%; recharge 1 h 28 min; ran a test fridge about 27.4 h |
EcoFlow DELTA 3 Max
No independent test published yet.
Specifications
| Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 3 Max | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 2,048 Wh |
| Tested usable capacity | 1,812 Wh (88%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | - |
| Expandable | Yes, up to 4,000 Wh | - |
| Output | ||
| AC output | 2,400 W (4,000 W surge) | 2,400 W (4,800 W surge) |
| Boost mode (resistive loads) | - | 3,400 W |
| AC outlets | 6 total | 4 total |
| 120V 20A outlets (NEMA 5-20R) | 5 | 4 |
| RV 30A outlet (TT-30R) | 1 | - |
| USB-C ports | 3 (up to 140 W each) | 3 (up to 100 W each) |
| USB-A ports | 1 | 1 |
| 12 V car outlet | Yes | Yes |
| UPS / pass-through | Yes (10 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | 1 h 28 min (100% in 88 min on AC; 58 min with AC + solar at 2600W (manufacturer)) | - |
| Max solar input | 800 W | 500 W |
| Solar input voltage | 11-60V | - |
| Car charging | 800 W | - |
| Build | ||
| Weight | 41.7 lb (18.9 kg) | 44.8 lb (20.3 kg) |
| Dimensions | 18.1 x 9.8 x 10.1 in | 494 x 239 x 305 mm |
| App | - | Wi-Fi + Bluetooth |
| Warranty | - | 5 years |
