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Anker SOLIX C1000 vs EcoFlow DELTA 3

Anker SOLIX C1000 — front view

Anker SOLIX C1000

60BatteryRank score · Balanced
Check price on Amazon
Decision readout
Better station

EcoFlow DELTA 3 leads by 8 points overall.

EcoFlow DELTA 3 — front view

EcoFlow DELTA 3

68BatteryRank score · Balanced
What changes the decision

By the BatteryRank Engineering Team

01 · Score evidence

Score breakdown

60
Anker SOLIX C1000
Overall
68
EcoFlow DELTA 3
60
POWER
EcoFlow DELTA 3 +5
65

Battery-side usable capacity and how much you can run at once.

69
TRUST
EcoFlow DELTA 3 +17
86

Owner reputation, safety record, warranty, and build durability.

58
CHARGING
EcoFlow DELTA 3 +8
66

Wall and solar recharge speed.

37
LIVABILITY
EcoFlow DELTA 3 +23
60

Lightweight, portable, and quiet enough to live with.

Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.

02 · Usable energy

Capacity truth

The watt-hours on the box aren't what reaches your devices. Same scale, both units.

Anker SOLIX C1000
Rated (on the box)
1,056 Wh. Show sourceclaimed sourceankersolix.com ↗2026-07-04

The marketing number — total cell capacity.

AC deliveredmeasured
860 Wh. Show sourceverified source~860 Wh usable (~81% of 1,056 Wh rated) (OutdoorGearLab)2026-07-04

~860 Wh usable (~81% of 1,056 Wh rated) (OutdoorGearLab) · 19% below the label

EcoFlow DELTA 3
Rated (on the box)
1,024 Wh. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04

The marketing number — total cell capacity.

AC delivered (est.)
870 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.

03 · Same assumptions

Same-device runtime

Estimated runtime for the same sourced devices on Anker SOLIX C1000 and EcoFlow DELTA 3
DeviceAnker SOLIX C1000EcoFlow DELTA 3Assumption
CPAP (humidifier off)about 11.9 nightsabout 12.1 nights9 W ·
CPAP (heated humidifier on)about 1.9 nightsabout 1.9 nights56 W ·
Refrigerator (full-size)about 14 hoursabout 14 hours180 W × 35% duty cycle ·
Wi-Fi router + modemabout 48 hoursabout 48 hours18 W ·
Laptop (65W charger)about 26 hoursabout 27 hours65 W × 50% duty cycle ·
Phone (one full charge)about 43 full chargesabout 43 full charges20 W ·

One device at a time; estimates use each station's usable AC energy. Build your own load →

04 · Sourced hardware

Key specs, side by side

Key sourced specifications for Anker SOLIX C1000 and EcoFlow DELTA 3
SpecAnker SOLIX C1000EcoFlow DELTA 3
AC-delivered capacity
860 Whverified. Show sourceverified source~860 Wh usable (~81% of 1,056 Wh rated) (OutdoorGearLab)2026-07-04
870 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04
Continuous power output
1,800 W. Show sourceclaimed sourceankersolix.com ↗2026-07-04
1,800 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Surge power output
2,400 W. Show sourceclaimed sourceankersolix.com ↗2026-07-04
3,600 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Max solar input
600 W. Show sourceclaimed sourceankersolix.com ↗2026-07-04
500 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
AC charge time (0–100%)
58 min. Show sourceclaimed sourceankersolix.com ↗2026-07-04
56 min. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Weight
12.9 kg. Show sourceclaimed sourceankersolix.com ↗2026-07-04
12.5 kg. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Rated cycle life
3,000 cycles. Show sourceclaimed sourcecdn.solarpowersupply.eu ↗2026-07-04
4,000 cycles. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Only show differences
  • AC-delivered capacity860 Wh870 Wh
  • Surge power output2,400 W3,600 W
  • Max solar input600 W500 W
  • AC charge time (0–100%)58 min56 min
  • Weight12.9 kg12.5 kg
  • Rated cycle life3,000 cycles4,000 cycles

Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.

Where these rank

Where to buy

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Quick answers

Is the Anker SOLIX C1000 better than the EcoFlow DELTA 3?
EcoFlow DELTA 3 leads by 8 points overall.
Which has more usable capacity, the Anker SOLIX C1000 or EcoFlow DELTA 3?
Neither, in any way you would notice: 860 Wh against 870 Wh is a 1.2% gap, which is smaller than the swing you get from running the same load on a cold morning. Treat them as the same size and decide on output, weight, or today's price instead. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices.
Which has more AC output, the Anker SOLIX C1000 or EcoFlow DELTA 3?
Neither — both are rated 1,800 W continuous, so any load one can run, the other can too. Surge headroom follows the same order: 2,400 W against 3,600 W, and surge is what decides whether a compressor or pump actually starts.
How does runtime compare between the Anker SOLIX C1000 and EcoFlow DELTA 3?
They run within 1.2% of each other on the same load — about 13.7 hours each on a refrigerator (full-size). Runtime will not separate these two; the deciding factor is somewhere else.
Which is lighter, the Anker SOLIX C1000 or EcoFlow DELTA 3?
They are effectively the same to carry — 12.9 kg against 12.5 kg. Neither is meaningfully easier to move, so portability should not decide this one.
Which model should I buy for my use case?
On the sub-scores that describe each use case: the EcoFlow DELTA 3 for home backup, cpap & bedroom, camping & rv. One model leads every use case we score here, which makes this an unusually clean choice.

Keep deciding

Scores computed from sourced data · prices timestamped · tap or focus a figure to view its source

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