Updated August 2026 · Head-to-head

Anker SOLIX C1000 Gen 2 vs EcoFlow DELTA 2 (2026): Which Should You Buy?

The two best ~1kWh power stations compared: Anker's newer, faster C1000 Gen 2 against EcoFlow's proven, expandable DELTA 2.

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Best Overall

Anker SOLIX C1000 Gen 2

4.8

~$799 approx.

The best balance of power, portability, and charge speed you can buy.

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Best Ecosystem

EcoFlow DELTA 2

4.5

~$649 approx.

Proven, expandable, and constantly discounted — the smart-home favorite.

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Our Verdict

Spec-for-spec these are the closest rivals in this guide: ~1kWh of LiFePO4, 1,800W inverters, six AC outlets each. The C1000 Gen 2 is the newer design — faster wall charging (49 vs ~80 minutes), noticeably quieter fans, 140W USB-C, and higher solar input. The DELTA 2's trump card is expandability: snap-on batteries take it from 1kWh to 3kWh later, and years of mature firmware plus frequent discounts make it a savvy buy.

At equal prices, take the C1000 Gen 2 — it's simply the more refined unit. But prices are rarely equal: the DELTA 2 dips aggressively during sales, and if you foresee growing into multi-day backup, its expansion path is something Anker can't match at this tier.

Choose the Anker SOLIX C1000 Gen 2 if…

You want the fastest charging, quietest operation, and best USB-C — the better standalone unit.

Choose the EcoFlow DELTA 2 if…

You want to expand capacity later, or catch it on one of its frequent deep discounts.

Spec-by-Spec

SpecAnker SOLIX C1000 Gen 2EcoFlow DELTA 2
Approx. price~$799~$649
Our rating4.8/54.5/5
Capacity1,024Wh LiFePO41,024Wh LiFePO4 (expandable to 3,040Wh)
AC output1,800W continuous / 2,400W surge1,800W (X-Boost 2,200W)
Wall recharge~49 min (ultra-fast mode)0–80% in ~50 min
Solar inputUp to 600WUp to 500W
PortsAC ×6, USB-C ×2 (140W), USB-A ×2, 12VAC ×6, USB-C ×2 (100W), USB-A ×4, 12V
Weight~25 lbs~27 lbs

Strengths and Trade-offs

Anker SOLIX C1000 Gen 2

Pros

  • 0–100% wall charge in as little as 49 minutes
  • 1,800W output (2,400W surge) runs nearly any household appliance
  • LiFePO4 cells rated for 3,000+ cycles — a decade of use
  • Compact and light for its class (~25 lbs)

Cons

  • Fan is audible during ultra-fast charging
  • Expansion battery sold separately

EcoFlow DELTA 2

Pros

  • Expandable from 1,024Wh to 3kWh with add-on batteries
  • 1,800W output with X-Boost mode for resistive loads up to 2,200W
  • Excellent app with detailed energy monitoring
  • Mature product — deep discounts are common

Cons

  • Fan noise under load is louder than newer rivals
  • Design is a generation older than the C1000 Gen 2

Read the full reviews: Anker SOLIX C1000 Gen 2 · EcoFlow DELTA 2 — or see all our picks in The Best Portable Power Stations of 2026.