Anker SOLIX C1000 vs EcoFlow DELTA 3 Max

Side-by-side on the specs that decide it — surge, capacity, runtime and price.

Both models' specs verified against manufacturer listings · Last updated July 29, 2026

The short answer

Anker SOLIX C1000 costs $100 less. Whether that gap is worth closing depends on what you need to run.

EcoFlow DELTA 3 Max holds 94% more energy (2048Wh vs 1056Wh), so it runs the same load proportionally longer.
EcoFlow DELTA 3 Max has 2400W more surge headroom (4800W vs 2400W) — that decides whether a fridge, pump or AC compressor will actually start.
Anker SOLIX C1000 is 26.7 lb lighter (28.44 lb vs 55.1 lb).
EcoFlow DELTA 3 Max is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.

Anker SOLIX C1000

The default recommendation for most people. It clears the 1kWh bar, recharges in under an hour, and undercuts almost everything with comparable specs.

Best for: First-time buyers who want one unit for camping and short outages without overpaying.

Where it falls short:

2400W surge won't start a sump pump or well pump
Only 1056Wh — a fridge-plus-devices outage tops out around a day

EcoFlow DELTA 3 Max

The value leader in the 2kWh class. Same 4800W surge as the DELTA 2 Max at $500 less, with 1000 more cycles.

Best for: Home backup buyers who want compressor-starting surge without paying flagship prices.

Where it falls short:

55 lb is a two-hand lift
Only marginally lighter than heavier rivals

Spec	Anker SOLIX C1000	EcoFlow DELTA 3 Max
Price	$999	$1099
Capacity	1056 Wh	2048 Wh
Continuous output	1800 W	2400 W
Surge output	2400 W	4800 W
Battery	LiFePO4	LiFePO4
Rated cycles	3,000	4,000
Weight (lighter wins)	28.44 lb	55.1 lb
Max solar	600 W	1000 W
Recharge time (faster wins)	58 min	1h 22m

Runtime head-to-head

Appliance	Anker SOLIX C1000	EcoFlow DELTA 3 Max
Refrigerator	15.0 hrs	29.0 hrs
Mini fridge	28.5 hrs	55.3 hrs
Chest freezer	11.2 hrs	21.8 hrs
CPAP machine	22.4 hrs	43.5 hrs
Sump pump	❌	2.2 hrs

Anker SOLIX C1000
Price → EcoFlow DELTA 3 Max
Price →