Head-to-head comparison
Anker Solix vs EcoFlow: C1000 Gen 2 vs Delta 3 Plus
The two fastest-charging 1kWh power stations, $140 apart. Where Anker's output-per-dollar beats EcoFlow, and where EcoFlow's ecosystem wins it back.
Published 2026-07-21
| Anker SOLIX C1000 Gen 2 | EcoFlow Delta 3 Plus | |
|---|---|---|
| Price (2026-07-21) | $549.99 | $689 (list $799) |
| Rated capacity | 1,024Wh | 1,024Wh |
| Usable (est. 85%) | ~870Wh | ~870Wh |
| $ per rated Wh | $0.54 | $0.67 |
| AC output | 2,000W (3,000W surge) | 1,800W (3,600W surge) |
| AC outlets | 5 | 6 |
| UPS switchover | 10ms | under 10ms |
| Full AC recharge | 49 min (UltraFast) | 56 min |
| Max solar input | 600W | 1,000W |
| USB-C | 2× 140W + 1× 15W | 2× 140W |
| Expandable | No | Yes — to 5kWh |
| Weight | 24.9 lb | 27.6 lb |
| Cycle life | 4,000 to 80% | 4,000 to 80% |
| Warranty | 5 years | 5 years |
Verdict — Anker SOLIX C1000 Gen 2 wins
Identical batteries, $140 apart: the Anker SOLIX C1000 Gen 2 gives you more output, less weight, and an equally fast recharge for less money, so it wins for the plain home-backup buyer. Pay EcoFlow's premium only if you'll use the 1,000W solar ceiling or the 5kWh expansion path.
This is the closest matchup on the site: two 1,024Wh LiFePO4 packs with the same rated cycle life, the same UPS-grade switchover, the same 140W USB-C ports, five-year warranties, and sub-hour wall charging. When the batteries are this identical, the decision is entirely about the $140 gap and what sits around the cells.
The value math
At $549.99 versus $689, the Anker lands at $0.54 per rated watt-hour against EcoFlow's $0.67 — for the identical amount of stored energy. Runtime on our fridge-CPAP-router estimate is the same ~11 hours for both, so every runtime dollar goes further with the Anker. It also pushes more AC power (2,000W vs 1,800W) from a box that's 2.7 pounds lighter, and its 49-minute UltraFast recharge edges EcoFlow's 56 minutes — a distinction that matters exactly when the grid flickers back between outage waves and you're racing the next one.
Where EcoFlow earns its premium
Two places, both about the future rather than the outage in front of you. Solar: the Delta 3 Plus accepts 1,000W of panel input to Anker's 600W — with real panel wattage, that's refilling in an hour of sun versus two. Expansion: EcoFlow's port takes the system to 5kWh with extra batteries; the C1000 Gen 2 has no expansion at all (Anker's own FAQ points expansion buyers back to the original C1000). If either of those is in your two-year plan, the $140 is buying infrastructure, not badge.
Who should buy which
Buy the C1000 Gen 2 if you're buying one box to keep the essentials alive during grid failures. It does that job with more output, less weight, and equal speed for $140 less — the plain-math win.
Buy the Delta 3 Plus if this is the first piece of a bigger system: serious solar, expansion batteries, the EcoFlow ecosystem. Its ceilings are higher; you're paying today for headroom you use later.
Frequently asked
- These two look identical on paper — what's actually different?
- The battery really is the same size (1,024Wh LiFePO4, 4,000 cycles to 80%, both ~10ms switchover, both sub-hour charging). The fork is in the periphery: Anker gives more AC output (2,000W vs 1,800W) for less money; EcoFlow gives a bigger solar ceiling (1,000W vs 600W) and an expansion port (to 5kWh) for more money.
- Which is the better UPS?
- Functionally a tie. EcoFlow specs 'under 10ms' and Anker specs 10ms — both are fast enough to carry a desktop, NAS, or router through a grid drop without a reboot. Either one parked under a desk is doing real work between outages.
- Is the C1000 Gen 2 the same as the original C1000?
- No. The Gen 2 is the current model: more output in a lighter box with faster charging — but Anker dropped the original's expansion-battery support. If you want an expandable Anker, that's the original C1000, which Anker still sells alongside it.
Sources
- 01checked 2026-07-21
Anker SOLIX C1000 Gen 2: $549.99, 1,024Wh LiFePO4, 2,000W/3,000W surge, 5 AC outlets, 10ms UPS, 49-minute UltraFast full recharge, 600W max solar, 2× 140W USB-C, 24.9 lb, 4,000 cycles to 80%, 5-year warranty, not expandable
https://www.ankersolix.com/products/c1000-gen2 - 02checked 2026-07-21
EcoFlow Delta 3 Plus: $689 (list $799), 1,024Wh LiFePO4, 1,800W/3,600W surge, 6 AC outlets, under-10ms UPS, 56-minute full recharge, 1,000W max solar, 2× 140W USB-C, 27.6 lb, 4,000 cycles to 80%, 5-year warranty, expandable to 5kWh
https://us.ecoflow.com/products/delta-3-plus-portable-power-station - 03checked 2026-07-21
Anker's C1000 Gen 2 FAQ recommends the original C1000 for buyers who need expandable capacity, and the original remains on sale
https://www.ankersolix.com/products/c1000