BatteryRank scores the EcoFlow DELTA 3 Plus higher overall — 73 vs 70, though the other unit leads on trust.
- Best for Home backup: EcoFlow DELTA 3 Plus
- Best for CPAP & bedroom: Anker SOLIX C1000 Gen 2
- Best for Camping & RV: Anker SOLIX C1000 Gen 2
How they score
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
The marketing number — total cell capacity.
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
The marketing number — total cell capacity.
~870Wh effective at ~85% (est., same cells as DELTA 3) vs 1024 rated · 15% below the label
Key specs, side by side
| Spec | Anker SOLIX C1000 Gen 2 | EcoFlow DELTA 3 Plus |
|---|---|---|
| Usable capacity | 1,024 Wh | 1,024 Wh |
| Continuous power output | 2,000 W | 1,800 W |
| Surge power output | 3,000 W | 3,600 W |
| Max solar input | 600 W | 1,000 W |
| AC charge time (0–100%) | 49 min | 56 min |
| Weight | 11.3 kg | 12.5 kg |
| Rated cycle life | 4,000 cycles | 4,000 cycles |
Manufacturer-claimed unless marked verified (FCC/UL/DOE/lab). Hover any figure for its source.
Price & fair-price verdict
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- Anker SOLIX C1000 Gen 2 #2 of 8 in Quietest Power Stations · #3 Midsize (1 kWh class) in Best Portable Power Stations
- EcoFlow DELTA 3 Plus #1 Midsize (1 kWh class) in Best Portable Power Stations · #4 of 8 in Best for Home Backup