Anker SOLIX C1000 Gen 2 vs EcoFlow DELTA 3 Plus
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Our verdict
These are the most direct rivals in the 1 kWh class. Pick the Anker SOLIX C1000 Gen 2 if you want the most power in the lightest package: 2,000 W continuous (vs 1,800 W), 24.9 lb (vs 27.6 lb) and a 49-minute wall recharge, the fastest we list. It also has the lower list price ($599.99 vs $799).
Pick the EcoFlow DELTA 3 Plus if you’ll rely on solar or want to grow the system: it accepts up to 1,000 W of solar (vs 600 W), expands to about 5 kWh with extra batteries, has a higher 3,600 W surge rating and one more AC outlet. Both use LiFePO4 cells rated for 4,000 cycles. For a fixed-size backup or camping unit, the C1000 Gen 2 is the better value; for a system you’ll build out with panels and batteries, the DELTA 3 Plus.
Based on manufacturer specs and list prices checked Oct 11, 2026.
Where the Anker SOLIX C1000 Gen 2 wins
- More continuous output (2,000 vs 1,800 W)
- Lighter (24.9 vs 27.6 lb)
- Faster wall charging (49 vs 56 min)
- More battery per list-price dollar (1.71 vs 1.28 Wh/$)
Where the EcoFlow DELTA 3 Plus wins
- Higher surge for motor start-ups (3,600 vs 3,000 W)
- Faster solar charging (1,000 vs 600 W input)
- More AC outlets (6 vs 5)
Spec by spec
| Spec | Anker SOLIX C1000 Gen 2 | EcoFlow DELTA 3 Plus |
|---|---|---|
| Battery capacity | 1,024 Wh | 1,024 Wh |
| Continuous AC output | 2,000 W (better) | 1,800 W |
| Surge / peak output | 3,000 W | 3,600 W (better) |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Rated charge cycles | 4,000 | 4,000 |
| Lifetime energy (capacity × cycles) | 4,096 kWh | 4,096 kWh |
| Weight | 24.9 lb (better) | 27.6 lb |
| Energy per pound | 41.1 Wh/lb (better) | 37.1 Wh/lb |
| AC outlets | 5 | 6 (better) |
| Max USB-C output | — | 140 W |
| Max solar input | 600 W | 1,000 W (better) |
| Wall charge to 100% | 49 min (better) | 56 min |
| Expandable to | — | 5,000 Wh |
| List price at maker | $599.99 | $799 |
| Runs a full-size fridge | 16.6 h | 16.6 h |
| CPAP nights (40 W, 8 h) | 2 | 2 |
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