Anker SOLIX C1000 Gen 2 vs EcoFlow DELTA 3 Classic
Two of the mid-size power stations (700–1,500 wh) in our best 1000wh portable power stations (700–1,500 wh) for 2026 comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: The fastest wall recharge in the 1 kWh class
Check price at AmazonBest for: A 1,800 W, 1 kWh station with 10 ms UPS
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Anker SOLIX C1000 Gen 2 | EcoFlow DELTA 3 Classic | Weight |
|---|---|---|---|
| Battery capacityUsable runtime scales with watt-hours. A 1,000 Wh station runs a 100 W load for roughly 8–9 hours once inverter losses are counted. | 1024 Wh | 1024 Wh | 25% |
| Continuous AC outputThe rated (continuous) inverter output decides which appliances you can plug in. We use the rated figure, not surge or 'boost' modes. | 2000 W | 1800 W | 20% |
| Max solar inputHigher solar input means faster recharging off-grid, if you have enough panels to use it. | 600 W | 500 W | 15% |
| WeightLighter is easier to carry to a campsite or between rooms. | 11.3 kg | 12.1 kg | 15% |
| Max AC charging powerMore AC input watts means a faster wall recharge before a trip or storm. | 1600 W | 1400 W | 10% |
| Rated cycle lifeHow many full cycles the maker rates the battery for. Thresholds differ (70% vs 80% remaining capacity), so read the note under each product. | 4000 cycles | Not listed | 10% |
| Surge / peak outputShort bursts for motor start-up (fridges, pumps). Skipped when the maker doesn't publish a surge figure. | 3000 W | Not listed | 5% |
| Chemistry | LFP | LFP (LiFePO4) | info |
| Cycle rating | At least 80% capacity after 4,000 cycles | Not listed | info |
| AC output | 2,000 W (3,000 W peak) | 1,800 W total (X-Boost 2,600 W) | info |
| AC input | 1,200 W standard; 1,600 W UltraFast (app) | 1,400 W max | info |
| Solar input | 600 W, 60 V max | 500 W max | info |
| UPS | Under 10 ms | 10 ms | info |
| Ports | 10 | Not listed | info |
| USB-C | Up to 140 W | 100 W + 30 W | info |
| Weight | 24.9 lb | 12.1 kg + 0.3 kg (EcoFlow listing) | info |
| Expansion | Not expandable (Anker FAQ) | Not listed | info |
| Capacity | Not listed | 1,024 Wh (51.2 V, 20 Ah) | info |
| Warranty | Not listed | 5 years (3 + 2 with app registration) | info |
| VoltPick score | 6.7/10 | 5.9/10 | 100% |
Where each one comes out ahead
Anker SOLIX C1000 Gen 2
Better published figure on: Continuous AC output, Max solar input, Weight, Max AC charging power.
What we like
- 1,600 W UltraFast recharge (49 min to 100%, Anker figure)
- 10 ms UPS
- 4,000-cycle rating to 80%
- AC + solar charging together
Watch out for
- Not expandable
- UltraFast mode needs the battery above 20 °C (68 °F)
EcoFlow DELTA 3 Classic
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- 1,800 W output with X-Boost up to 2,600 W
- 10 ms UPS
- 500 W solar input
Watch out for
- EcoFlow's spec table doesn't list a cycle rating or surge figure
Verdict
Both 1,024 Wh with 10 ms UPS. Anker outputs more (2,000 W), charges faster and is about 1 kg lighter; EcoFlow publishes a 500 W solar input and X-Boost up to 2,600 W for heating loads.
- Anker SOLIX C1000 Gen 2: Anker SOLIX: C1000 Gen 2 specs
- EcoFlow DELTA 3 Classic: EcoFlow: DELTA 3 Classic specs