Anker SOLIX F3800 vs EcoFlow DELTA Pro: High-Power Home Backup

Verdict: The Anker SOLIX F3800 ($2,999) wins on raw output — 6,000W continuous vs 3,600W, 12,000W surge vs 7,200W, and 240V support the Delta Pro lacks. The EcoFlow DELTA Pro ($2,499) wins on capacity (3,200Wh vs 3,400Wh is similar) and expandability (25kWh vs 26.9kWh also similar). For loads above 3,600W continuous — electric ranges, dryers, large AC — the F3800 is the only choice. For whole-home battery backup with maximum expandability, the Delta Pro’s ecosystem is more mature.

Specs Side-by-Side

Spec	Anker SOLIX F3800	EcoFlow DELTA Pro
Price	$2,999	$2,499
Capacity (usable)	3,400 Wh	3,200 Wh
Continuous output	6,000W	3,600W
Surge	12,000W	7,200W
240V output	✓ Yes	✗ No
Solar input	2,400W	1,600W
UPS mode	✓ Yes	✓ Yes
Max expansion	26.9 kWh	25 kWh
Weight	84.1 lbs	45 lbs

The 240V Advantage

The F3800’s 240V output is a game-changer for whole-home backup. It can power electric dryers (5,000W), electric ranges (8,000W), and central AC systems that require 240V circuits. The DELTA Pro is limited to 120V — it cannot power these loads regardless of its output wattage.

When the DELTA Pro Makes Sense

At $500 less and 39 lbs lighter, the DELTA Pro works better when you need portability alongside backup capability. Its ecosystem is more established — smart home integration, EcoFlow’s app, and compatibility with more solar panels. If your loads are all 120V and under 3,600W continuous, the DELTA Pro saves $500.

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