Bluetti AC180 vs EcoFlow DELTA 3 Max
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
Bluetti AC180 costs $300 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Max holds 78% more energy (2048Wh vs 1152Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Max has 2100W more surge headroom (4800W vs 2700W) — that decides whether a fridge, pump or AC compressor will actually start.
- Bluetti AC180 is 17.7 lb lighter (37.4 lb vs 55.1 lb).
- EcoFlow DELTA 3 Max is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
Bluetti AC180
A solid mid-size unit that competes on price rather than any standout spec. 1152Wh is a useful step above the 1kWh crowd.
Best for: Buyers who catch it on sale and want slightly more than 1kWh.
Where it falls short:
- 37.4 lb is heavy for its capacity
- 2700W surge is mid-pack
- Not expandable
EcoFlow DELTA 3 Max
The value leader in the 2kWh class. Same 4800W surge as the DELTA 2 Max at $500 less, with 1000 more cycles.
Best for: Home backup buyers who want compressor-starting surge without paying flagship prices.
Where it falls short:
- 55 lb is a two-hand lift
- Only marginally lighter than heavier rivals
| Spec | Bluetti AC180 | EcoFlow DELTA 3 Max |
|---|---|---|
| Price | $799 | $1099 |
| Capacity | 1152 Wh | 2048 Wh |
| Continuous output | 1800 W | 2400 W |
| Surge output | 2700 W | 4800 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,500 | 4,000 |
| Weight (lighter wins) | 37.4 lb | 55.1 lb |
| Max solar | 500 W | 1000 W |
| Recharge time (faster wins) | 1h 30m | 1h 22m |
Runtime head-to-head
| Appliance | Bluetti AC180 | EcoFlow DELTA 3 Max |
|---|---|---|
| Refrigerator | 16.3 hrs | 29.0 hrs |
| Mini fridge | 31.1 hrs | 55.3 hrs |
| Chest freezer | 12.2 hrs | 21.8 hrs |
| CPAP machine | 24.5 hrs | 43.5 hrs |
| Sump pump | ❌ | 2.2 hrs |