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Anker SOLIX C1000 vs EcoFlow DELTA 3 Plus

The EcoFlow DELTA 3 Plus delivers more usable capacity than the Anker SOLIX C1000 (about 910 Wh vs 897 Wh). A typical refrigerator runs about 13.5 h on the Anker SOLIX C1000 and 13.7 h on the EcoFlow DELTA 3 Plus.

Specs verified 2026-10-18. Every value below links to its source.

Where they differ

Better on 2 of 7

Anker SOLIX C1000

  • Anker SOLIX C1000: lower list price (599.99 USD vs 799 USD, EcoFlow DELTA 3 Plus).
  • Anker SOLIX C1000: lower price per usable Wh ($0.67 vs $0.88, EcoFlow DELTA 3 Plus), the fairest value measure across sizes.
Check Anker SOLIX C1000 price on Amazon

Better on 5 of 7

EcoFlow DELTA 3 Plus

  • EcoFlow DELTA 3 Plus: more usable capacity (910 Wh vs 897 Wh, Anker SOLIX C1000).
  • EcoFlow DELTA 3 Plus: higher surge rating (3,600 W vs 2,400 W, Anker SOLIX C1000).
  • EcoFlow DELTA 3 Plus: lighter (27.6 lb vs 28.4 lb, Anker SOLIX C1000).
  • EcoFlow DELTA 3 Plus: faster AC charging (1,500 W vs 1,300 W, Anker SOLIX C1000).
  • EcoFlow DELTA 3 Plus: more solar input (1,000 W vs 600 W, Anker SOLIX C1000).
Check EcoFlow DELTA 3 Plus price on Amazon
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Specs side by side

SpecAnker SOLIX C1000EcoFlow DELTA 3 Plus
Rated capacity1,056 Wh[source]Tech Specs 'Capacity: 1056Wh'. This is the original C1000 (A1761), not the C1000X (separate page, /products/a1761111) or the C1000 Gen 2 (1,024 Wh). The US page shows the unit as 'Sold Out' on 2026-10-18.1,024 Wh[source]Manual spec table: 'Rated Capacity | 1024Wh (51.2V⎓20Ah)'. Not the same product as the DELTA 3 Classic or DELTA 3.
Usable capacity (measured)897 Wh[source]OutdoorGearLab (US unit, AC output) measured 897 Wh, about 85% of rated. ComputerBase (EU 230 V unit) measured 993 Wh at 500 W and 954 Wh at 2,000 W; the lower figure is used.910 Wh[source]StorageReview: 'The unit discharged 0.91kWh (910Wh) during testing' (100% to 0%, discharge efficiency ~88.9%). Load and AC/DC not stated; US 120 V unit. No other measured figure found (searched OutdoorGearLab, The Solar Lab, How-To Geek, TechRadar on 2026-10-19).
AC continuous output1,800 W[source]'AC Continuous Output: 1800W Pure Sine Wave'.1,800 W[source]Manual: 'Pure sine wave, total 1800W, surge 3600W ... US/CA: 120V'. X-Boost (resistive loads up to 2600 W at 120 V per the manual's X-Boost table) is separate; the product page says 'Max Device(s) Power (with X-Boost) 2200W'.
AC surge output2,400 W[source]'AC Surge Output: 2400W' (SurgePad, for heat-generating devices).3,600 W[source]Manual: 'total 1800W, surge 3600W'.
240 V outputNo[source]Official spec data 'AC Output Voltage: 120V'; no 240 V output.No[source]Manual AC output: 'US/CA: 120V'; no 240 V output.
Battery chemistryLiFePO4[source]'LiFePO4 (Lithium Iron Phosphate)'.LiFePO4[source]Manual: 'Cell Chemistry | LFP (LiFePO₄)'.
Cycle life3,000 cycles to 80% capacity[source]'Battery Life Cycles: 3,000 (80% Capacity)'.4000 cycles to 80%[source]Manual: 'Cycle Life | 80%+ capacity after 4000 cycles'.
AC charging1,300 W[source]'AC Input Recharge: 1,300W Max'; full charge in 58 min (UltraFast).1,500 W[source]Product page: '1500W AC Input, Full Charge in 56 Minutes'; specs 'AC Charging 1500W'. Manual: 'AC Input Socket US/CA/JP: 100-120V～15A'.
Max solar input600 W[source]'600W Max, 11-60V MPPT'.1,000 W[source]Manual: 'Solar Input: 11-60V⎓15A, 500W Max per port, total 1000W'.
ExpandableYes[source]'Increase the capacity of C1000 with an extra 1,056Wh' via the BP1000 expansion battery (1 max).Yes[source]'1–5kWh expandable with DELTA 3 Extra Battery, DELTA 2 Extra Battery, DELTA 2 Max Extra Battery, or DELTA Pro 3 Extra Battery via an Alternator Charger XT150 Output Cable.' One extra battery port (XT150).
UPS / EPS switchover20 ms[source]Tech Specs 'UPS Switch Time: <20ms'.10 ms[source]Manual: 'The power station acts as a standby UPS with a transfer time of 10 ms.' Product page: 'UPS <10ms'.
Weight28.44 lb[source]'Net Weight: 28.44 lb / 12.9 kg'.27.6 lb[source]Manual: 'Net Weight | Approx. 12.5 kg (27.6 lbs)'.
Warranty5 years[source]'Warranty: 5-Year Warranty'.5 years[source]US warranty policy: 'DELTA 3 Plus | 5 years'. Product page: 'Warranty 5 years'.
List price$599.99[source]Seen 2026-10-18: unit 'Sold Out', so the page shows no price; the store's product data lists the standalone variant at $599.99 with no compare-at price. No sale price shown.$799[source]Regular (compare-at) price $799 for the bare 'DELTA 3 Plus' variant, sale price $719, seen 2026-10-19.
Usable capacity used for runtimes897 Wh910 Wh

Runtime on one charge

ApplianceAnker SOLIX C1000EcoFlow DELTA 3 Plus
Refrigerator13.5 h13.7 h
Chest freezer36.5 h37 h
CPAP (no humidifier)19.9 h20.2 h
CPAP with heated humidifier10 h10.1 h
Sump pump (1/3 hp)1.4 h1.4 h
Sump pump (1/2 hp)1 h1 h
Gas furnace blower (1/2 hp)1.6 h1.7 h
Window AC (5,000 BTU)2.6 h2.6 h
Microwave1 h1 h
Coffee maker0.7 h0.8 h
Laptop charger15 h15.2 h
Phone charger44.9 h45.5 h
Wi-Fi router / modem2.5 days2.5 days
TV (LED, 32-55 inch)13.2 h13.4 h
LED light bulb (each)4.2 days4.2 days
Space heater0.6 h0.6 h
Oxygen concentrator (home, 5 L/min)2.6 h2.6 h
Starlink (Standard kit)10.2 h10.3 h
Desktop PC + monitor10 h10.1 h
Electric blanket (queen)3.5 h3.5 h
Box fan (20 inch)10.8 h11 h
Dehumidifier (35-50 pint)1.8 h1.9 h
Portable air conditioner (8,000-10,000 BTU)0.7 h0.8 h
Electric kettle0.6 h0.6 h
Portable induction cooktop (single burner)0.5 h0.5 h
Air fryer0.6 h0.6 h
Mini fridge (compact, ~3 cu ft)35.9 h36.4 h
Garage door opener1.2 h1.3 h

Runtime = usable capacity ÷ average draw, the same formula for both models (no idle draw added to either), after checking continuous output and startup surge. Usable capacity is an independent test's measured figure, or 80% of rated where none exists. See the methodology.