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EcoFlow DELTA 3 Plus vs Anker SOLIX C1000 Gen 2

The two best-known 1 kWh power stations of 2026. Both hold about 1 kWh, recharge from the wall in under an hour by their makers' figures, and switch over fast enough to run as a UPS. The differences are expansion, solar input and price.

Specs and prices from the manufacturers' US sites, checked .

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The short answer

The Anker C1000 Gen 2 is cheaper ($549.99 vs $719 when we checked) and has more continuous output (2,000 W vs 1,800 W). The EcoFlow DELTA 3 Plus can grow: it takes EcoFlow extra batteries up to 5 kWh, accepts 1,000 W of solar against Anker's 600 W, and EcoFlow states a 5-year warranty and LFP chemistry, which Anker's US page does not state for the Gen 2.

Choose the EcoFlow DELTA 3 Plus if you might add batteries later, plan to charge mostly from solar, or want the stated 5-year warranty.

Choose the Anker SOLIX C1000 Gen 2 if you want the lowest price for 1 kWh, slightly more output, and won't need to expand.

Specs side by side

EcoFlow DELTA 3 Plus versus Anker SOLIX C1000 Gen 2 specifications
SpecEcoFlow DELTA 3 PlusAnker SOLIX C1000 Gen 2
Capacity1.02 kWh1.02 kWh
Continuous AC output1,800 W2,000 W
Surge / peak3,600 W3,000 W
Battery chemistryLFPNot stated
Rated cycles4,000 to 80%4,000 to 80%
Weight (lb)27.624.9
Expands to5 kWhNo
Max solar input1,000 W600 W
AC outlets6Not stated
UPS switchover10 ms10 ms
Voltage120V120V
Warranty (years)5Not stated
Price on maker's site*$719list $799$549.99list $699.99
Price per kWh$702$537
Where to buyEcoFlow DELTA 3 Plus at EcoFlow (opens in a new tab)Anker SOLIX C1000 Gen 2 at Anker (opens in a new tab)

EcoFlow DELTA 3 Plus: worth knowing

  • Same battery as the DELTA 3 but with two solar inputs (1,000 W total).
  • EcoFlow says a full AC recharge takes 56 minutes.

Anker SOLIX C1000 Gen 2: worth knowing

  • Anker says a full AC recharge takes 49 minutes.
  • Not expandable; Anker's US page does not state the battery chemistry.

Bold green marks the better figure where higher or lower is clearly better.

*Prices and specifications are from each manufacturer's US website, checked . Prices change often, sometimes daily during sales; the seller's page is the final word. Cycle ratings are the maker's own figures, measured to different end points, so treat them as rough guides.

How we compared

We compare only figures the manufacturers publish for their US models, and we link each one below. We have not lab-tested these units. Capacity is the rated battery capacity; usable AC energy is lower, typically by 10 to 20 percent, because of inverter losses. Cycle ratings are each maker's claim to its own end point. See how we choose products.

Specifications and prices are copied from manufacturer websites on the date shown and change often. Confirm them with the seller before buying. See our disclaimer.

Sources

  1. EcoFlow DELTA 3 Plus product page — checked October 15, 2026
  2. Anker SOLIX C1000 Gen 2 product page — checked October 15, 2026

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