BLUETTI AC180 Solar vs EcoFlow DELTA 3 Plus

BLUETTI AC180 Solar and EcoFlow DELTA 3 Plus hold almost the same battery and sell to the same person, which means the decision comes down to the details around the pack rather than the pack itself.

Two machines aimed at the same buyer

BLUETTI AC180 Solar holds about 13% more battery — 1152Wh against 1024Wh — and that is what decides how long either one lasts on the same load.

Both invert to 1800W, 4 outlets, so the same appliances are on and off the table for either.

EcoFlow DELTA 3 Plus is the lighter of the two at Approx. 12.5kg（27.6 lb）, by 7.7 lb.

EcoFlow DELTA 3 Plus refills faster from the wall, accepting 1500W against 1440W.

EcoFlow DELTA 3 Plus is rated for more charge cycles (4000 cycles to 80+% against 3,500+ cycles to 80%) — though makers do not all test to the same remaining capacity, so read those two numbers side by side rather than as a ranking.

Drawn from 8 specifications each maker publishes, of which 7 differ. We have not handled either machine — see our methodology.

Side by side

Specification	BLUETTI AC180 Solar	EcoFlow DELTA 3 Plus
Battery capacity	1152Whbetter	1024Wh
AC output	1800W, 4 outlets	1800W
AC input	1440W	1500Wbetter
Cell chemistry	LiFePO4	LFP
Cycle life	3,500+ cycles to 80%	4000 cycles to 80+%better
Weight	35.3 lbs	Approx. 12.5kg（27.6 lb）better
Dimensions	13.4x9.7x12.5 in	Approx. 398x202x283.6mm（16x8.0x11 in）
Warranty	5 Years	5 years

What that capacity actually runs

Watt-hours are hard to picture, so here is each pack as runtime on the loads a machine this size is usually bought for. Both columns assume 85% inverter efficiency — the conservative end of what these are rated at — so read every figure as a floor.

Load	BLUETTI AC180 Solar	EcoFlow DELTA 3 Plus
Laptop (60W)	16 hours	15 hours
CPAP, no humidifier (40W)	1.0 days	22 hours
12V camping fridge (45W average)	22 hours	19 hours
Starlink or router (55W)	18 hours	16 hours
Full-size fridge (150W average)	6.5 hours	5.8 hours

From solar alone, at 70% of the panel input each maker quotes — a realistic day rather than a lab figure — the BLUETTI AC180 Solar needs about 3.3 hours of good sun to refill .

Published by only one of them

A figure missing from a spec sheet is not a zero — it is a number the maker chose not to state. These appear on one page and not the other, so they cannot be compared, only noted.

BLUETTI AC180 Solar — Max solar input: 500W
BLUETTI AC180 Solar — AC outlets: 4 x 120V/15A
BLUETTI AC180 Solar — USB-C output: 1 × 100W max
BLUETTI AC180 Solar — USB-A output: 2 × 15W max
BLUETTI AC180 Solar — Operating temperature: 4°F-104°F (86°F-104°F: 1,500W Max.)
EcoFlow DELTA 3 Plus — Noise: 600W<30db;1200W<40db

Where this comparison stops

Everything above is what the makers publish, not what either machine did in front of us. We own neither, so there is no noise measurement, no thermal behaviour under sustained load, and no view on how either holds up after two years. Makers also measure differently — cycle life at 80% capacity is not the same test as cycle life at 70% — so figures that look comparable sometimes are not. Treat this as a way to build a shortlist quickly, and read the caveats on our methodology page before you let a number decide.

Check current prices

Neither figure above is a price. These two move independently and often, and whichever is discounted this week is usually the answer when the specifications are as close as they are here.

BLUETTI AC180 Solar on Amazon — search results for this model, as we do not have its listing on file
EcoFlow DELTA 3 Plus on Amazon — search results for this model, as we do not have its listing on file

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