BLUETTI AC240 vs EcoFlow DELTA 3 1500
BLUETTI AC240 and EcoFlow DELTA 3 1500 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
Both hold effectively the same battery (1,536Wh and 1536Wh), so runtime is not what separates them. Everything below is.
BLUETTI AC240 has the higher ceiling, 2,400W, 2 outlets against 3600W (surge 3600W) — enough to matter only if your load list sits right between the two.
EcoFlow DELTA 3 1500 is 37 lb lighter, which at this size is the difference between carrying it and moving it.
BLUETTI AC240 takes 1,200W of solar against 500W, which only matters if a panel is your way back to full — and matters a great deal if it is.
BLUETTI AC240 refills faster from the wall, accepting 2,200W against 1500W.
Drawn from 8 specifications each maker publishes, of which 8 differ. We have not handled either machine — see our methodology.
Side by side
| Specification | BLUETTI AC240 | EcoFlow DELTA 3 1500 |
|---|---|---|
| Battery capacity | 1,536Wh | 1536Wh |
| AC output | 2,400W, 2 outletsbetter | 3600W (surge 3600W) |
| Max solar input | 1,200Wbetter | 500W |
| AC input | 2,200Wbetter | 1500W |
| Weight | 33kg / 72lbs | 36 lbs/ 16.5kgbetter |
| Dimensions | 16.5 × 11.6 × 16.1in | 15.7 x 8.3 x 11.1 in(40 x 21 x 28 cm) |
| USB-C output | 2 × 100W max | 100W max |
| USB-A output | 2 × 18W max | 12W max |
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 AC240 | EcoFlow DELTA 3 1500 |
|---|---|---|
| Laptop (60W) | 22 hours | 22 hours |
| CPAP, no humidifier (40W) | 1.4 days | 1.4 days |
| 12V camping fridge (45W average) | 1.2 days | 1.2 days |
| Starlink or router (55W) | 24 hours | 24 hours |
| Full-size fridge (150W average) | 8.7 hours | 8.7 hours |
From solar alone, at 70% of the panel input each maker quotes — a realistic day rather than a lab figure — the BLUETTI AC240 needs about 1.8 hours of good sun to refill , and the EcoFlow DELTA 3 1500 about 4.4 hours.
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 AC240 — Cycle life: 3,500+ cycles to 80%
- BLUETTI AC240 — AC outlets: 2 x 120V/20A Outlets
- BLUETTI AC240 — Warranty: 6 Years
- EcoFlow DELTA 3 1500 — DC output: 126W max
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 AC240 on Amazon — search results for this model, as we do not have its listing on file
- EcoFlow DELTA 3 1500 on Amazon — search results for this model, as we do not have its listing on file
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Specifications retrieved 2026-09-17 from bluettipower.com and us.ecoflow.com. Figures change without notice; check the maker's page before buying.