Bottom line: The Anker Solix C1000 Gen 2 wins on paper and on price — 2,000W output (vs 1,800W), a 49-minute recharge (vs 80 minutes), 4,000-cycle battery life (vs 3,000), lighter weight, and ~$200 cheaper street. The EcoFlow Delta 2 fights back with 6 AC outlets, expandability to 3kWh, and EcoFlow’s more mature app ecosystem. For most buyers in 2026, the Anker is the smarter buy — unless you plan to expand capacity later.
[AFFILIATE LINK: Anker Solix C1000 Gen 2] [AFFILIATE LINK: EcoFlow Delta 2]
This is the comparison shoppers actually face: Anker’s second-generation 1kWh station against EcoFlow’s proven workhorse. Both pack ~1kWh of LiFePO4 storage. Both are all over Amazon deal pages. Here’s how they differ where it counts.
We compared manufacturer specs, verified owner reviews, and published test data. As always: research-based comparison, no fabricated hands-on claims.
Spec Comparison
| Spec | Anker Solix C1000 Gen 2 | EcoFlow Delta 2 |
|---|---|---|
| Capacity | 1,024Wh | 1,024Wh |
| Continuous AC output | 2,000W | 1,800W |
| Surge output | 3,000W peak | 2,700W (X-Boost ~2,200W) |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | 3,000 to 80% |
| AC outlets | 5–6 (region varies) | 6 |
| USB-C ports | 2 (up to 140W) | 2 (100W) |
| Weight | 24.9 lbs | 27 lbs |
| Full AC recharge | ~49 min (HyperFlash) | ~80 min (X-Stream) |
| Solar input | 600W max | 500W max |
| Expandable | Limited | Yes (to ~3kWh) |
| UPS switchover | 10ms | <30ms (EPS mode) |
| Warranty | 5 years | 5 years |
| Typical street price | ~$500–600 | ~$700–800 |
Power Output: Anker Takes It
2,000W continuous vs 1,800W — and the gap matters more than it looks. That extra 200W is the difference between running a microwave and a fridge simultaneously vs. choosing one. The Anker’s 3,000W peak also edges the Delta 2’s 2,700W surge for motor startups.
If your loads are modest (fridge + phones + fan), both handle it easily. If you push toward 1,800W+, the Anker has headroom the Delta 2 doesn’t.
Winner: Anker Solix C1000 Gen 2.
Battery Longevity: Anker Again
4,000 cycles to 80% vs 3,000 cycles to 80% — same end-of-life threshold, so this one is directly comparable. The Anker’s battery should last roughly a third longer under identical use. For a unit that sits in a Florida garage 11 months a year, both will last a decade; for daily cyclers (van life, off-grid), the Anker’s edge is real.
Winner: Anker Solix C1000 Gen 2.
Charging Speed: Anker by a Mile
49 minutes vs 80 minutes for a full charge isn’t close. Anker’s HyperFlash pulls 1,600W from the wall (enable it in the app); EcoFlow’s X-Stream pulls 1,200W. When the grid flickers back on between storm bands, faster is better — period. The Anker also accepts more solar (600W vs 500W).
Winner: Anker Solix C1000 Gen 2.
Outlets and Expandability: EcoFlow’s Counterpunch
Here’s where the Delta 2 claws back. Six AC outlets vs the Anker’s fewer — during an outage, your power station is the household power strip, and outlet count is daily usability. More importantly, the Delta 2 accepts EcoFlow extra batteries up to ~3kWh total. The Anker has no meaningful expansion path.
If you’re building a system that grows — add a battery next year for multi-day outages — the Delta 2 is the platform. If you want one box that does one job brilliantly, the Anker’s simplicity wins.
Winner: EcoFlow Delta 2 (on expandability; outlets are a wash in practice).
Portability: Anker
24.9 lbs vs 27 lbs, and the Gen 2 is 14% smaller than comparable units. Hauling it from garage to kitchen in the dark, you’ll feel every pound.
Winner: Anker Solix C1000 Gen 2.
Price: Anker, Decisively
~$500–600 street for the Anker Gen 2 vs ~$700–800 for the Delta 2. You’re paying $200+ more for the EcoFlow’s expandability and app — worth it if you’ll use them, wasted if you won’t.
Winner: Anker Solix C1000 Gen 2.
The Verdict
Buy the Anker Solix C1000 Gen 2 if: you want the best specs-per-dollar in the 1kWh class right now. More power, faster charging, longer battery life, lighter, cheaper — it wins 5 of 7 categories. The honest pick for most hurricane-prep buyers in 2026.
[AFFILIATE LINK: Anker Solix C1000 Gen 2]
Buy the EcoFlow Delta 2 if: you plan to expand capacity with extra batteries later, you want 6 AC outlets, or you’re already in the EcoFlow ecosystem (app, panels, accessories). It’s the better platform; the Anker is the better box.
[AFFILIATE LINK: EcoFlow Delta 2]
One caveat: EcoFlow’s newer Delta 3 Plus (~$700) narrows this gap with 4,000-cycle life and IP65 rating — if you’re choosing between the Anker Gen 2 and the Delta 3 Plus instead, see our best portable power stations roundup.
Frequently Asked Questions
Is the Anker Solix C1000 Gen 2 good for CPAP?
Excellent — 10ms UPS switchover, ~20+ hours at 40W draw, and quiet operation. See our CPAP backup guide.
Can either run a full-size fridge?
Yes — both handle a standard fridge (~150W average) for roughly 6 hours per charge. The Anker’s extra 200W of headroom helps when the compressor kicks on alongside other loads.
Which app is better?
EcoFlow’s app is more mature — more granular controls, storm-guard mode, energy scheduling. Anker’s app covers the essentials (HyperFlash toggle, monitoring, UPS settings) and is improving fast. Neither is required for basic operation.
Should I get the Gen 1 C1000 instead? It’s cheaper.
The Gen 1 (1,800W, 3,000 cycles, 28.4 lbs) has been spotted as low as ~$397 — a steal if you find it. But at typical street prices the Gen 2’s upgrades (2,000W, 4,000 cycles, lighter) are worth the small premium.