BLUETTI AC180 vs EcoFlow DELTA 2
BLUETTI AC180 (1,152 Wh, 1,800 W) vs EcoFlow DELTA 2 (1,024 Wh, 1,800 W). The AC180 has the bigger battery, so it runs your devices longer. Here is where each one comes out ahead, based on the manufacturers' published specs.
Each row has its own scale, and the longer bar fills the row. Figures are the manufacturers' published specs.
Choose the AC180 for…
- UPS use: 20 ms switchover vs 30 ms
- longer runtime: 13% more battery (1,152 Wh vs 1,024 Wh)
- fast wall charging: 1,440 W vs 1,200 W AC input
Choose the DELTA 2 for…
- room to grow: expands to 3,000 Wh with extra batteries
- portability: 8.3 lb lighter (27 lb)
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Our verdict
These two are rated identically for output, 1,800 W continuous and 2,700 W surge, so anything one can run, the other can too. The difference is in the battery and in what you carry.
The AC180 has 1,152 Wh against the DELTA 2's 1,024 Wh. In our calculator that's about 17 hours on a typical fridge against 15, and 33 hours on a CPAP against 29. It also charges faster from the wall (1,440 W against 1,200 W) and switches over in 20 ms against 30 ms, which is a little friendlier to computers.
The DELTA 2 is the lighter and more flexible of the two. It weighs 27 lb, about 8 lb less than the AC180 (BLUETTI's own pages list the AC180 anywhere from about 35 to 37 lb). It has six AC outlets against four, two USB-C ports against one, and it can take an extra battery for up to 3,000 Wh. The AC180 can't be expanded.
Before you buy a DELTA 2, check stock and support: EcoFlow no longer sells it in its US store, and the DELTA 3 has taken its place. If you can get one new with full warranty, it's still a good unit. Otherwise, the AC180 is the easier buy.
How we compared: the makers' published specs plus our runtime calculations. We haven't bench-tested these units ourselves.
See them in action
Official videos from each maker, so expect a sales pitch. They load from YouTube only when you press play.
Play the BLUETTI AC180 video: BLUETTI AC180 | 1800W portable power to give you more power options
Play the EcoFlow DELTA 2 video: Introducing EcoFlow DELTA 2 | Not Just a Battery
Specs side by side
✓ marks the better figure where higher or lower is clearly better. Cycle-life claims use different end-of-life definitions (70% or 80% capacity), so we don't rank them.
| Spec | BLUETTI AC180 | EcoFlow DELTA 2 Older |
|---|---|---|
| Capacity | 1,152 Wh | 1,024 Wh |
| Continuous output | 1,800 W | 1,800 W |
| Surge output | 2,700 W | 2,700 W |
| Max solar input | 500 W | 500 W |
| Max AC charging power | 1,440 W | 1,200 W |
| Weight | 35.3 lb | 27 lb |
| Wh per pound | 32.7 | 37.9 |
| Expandable | No | Up to 3,000 Wh |
| 240 V output | No | No |
| UPS / EPS switchover | 20 ms | 30 ms |
| AC outlets | 4 | 6 |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Cycle life (maker claim) | 3,500 to 80% | 4,000 to 80% |
| Warranty | 5 years | 5 years |
| Buy | Check price on Amazon | Check price on Amazon |
How long each one runs everyday devices
Nonstop runtime for one device at a time, at typical average wattage with 85% inverter efficiency. ✓ marks the longest.
| Spec | BLUETTI AC180 | EcoFlow DELTA 2 Older |
|---|---|---|
| Phone charging · 10 W avg | 4.3 days | 3.8 days |
| Wi-Fi router + modem · 15 W avg | 2.7 days | 2.4 days |
| CPAP · 30 W avg | 33 hours | 29 hours |
| Laptop · 50 W avg | 20 hours | 17 hours |
| TV · 100 W avg | 9.8 hours | 8.7 hours |
| Starlink Standard · 90 W avg | 11 hours | 9.7 hours |
| Refrigerator · 58 W avg | 17 hours | 15 hours |
| Chest freezer · 29 W avg | 34 hours | 30 hours |
| Window AC · 225 W avg | 4.4 hours | 3.9 hours |
| Sump pump · 210 W avg | 4.7 hours | 4.1 hours |
| Microwave · 1,500 W avg | 39 min | 35 min |
| Space heater · 750 W avg | 1.3 hours | 1.2 hours |
Specs from EcoFlow, Jackery, BLUETTI, Anker, DJI and Goal Zero documents, as of September 2026. See each model's page for sources: BLUETTI AC180 · EcoFlow DELTA 2.
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