Anker SOLIX C1000 vs EcoFlow DELTA Pro 3

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 $2700 less. Whether that gap is worth closing depends on what you need to run.

EcoFlow DELTA Pro 3 holds 288% more energy (4096Wh vs 1056Wh), so it runs the same load proportionally longer.
EcoFlow DELTA Pro 3 has 5600W more surge headroom (8000W vs 2400W) — that decides whether a fridge, pump or AC compressor will actually start.
Anker SOLIX C1000 is 84.6 lb lighter (28.44 lb vs 113 lb).
EcoFlow DELTA Pro 3 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 Pro 3

The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.

Best for: Whole-home backup buyers who want maximum solar recharge speed.

Where it falls short:

$3,699 is a serious investment
Overkill unless you're backing up a whole home

Spec	Anker SOLIX C1000	EcoFlow DELTA Pro 3
Price	$999	$3699
Capacity	1056 Wh	4096 Wh
Continuous output	1800 W	4000 W
Surge output	2400 W	8000 W
Battery	LiFePO4	LiFePO4
Rated cycles	3,000	4,000
Weight (lighter wins)	28.44 lb	113 lb
Max solar	600 W	2600 W
Recharge time (faster wins)	58 min	1h 40m

Runtime head-to-head

Appliance	Anker SOLIX C1000	EcoFlow DELTA Pro 3
Refrigerator	15.0 hrs	58.0 hrs
Mini fridge	28.5 hrs	110.5 hrs
Chest freezer	11.2 hrs	43.5 hrs
CPAP machine	22.4 hrs	87.0 hrs
Sump pump	❌	4.4 hrs

Anker SOLIX C1000
Price → EcoFlow DELTA Pro 3
Price →