Power stations
Bluetti AC180 vs EcoFlow DELTA 3 (2026): which should you buy?
By Mike · Updated October 8, 2026 · Based on manufacturer specs and the Amazon listings
The AC180 holds about 12.5% more energy. The DELTA 3 is about 7.7 pounds lighter, can add batteries, has 6 outlets and refills from the wall without an app. If you carry it or might expand, that outweighs the extra 128Wh.
Choose the Bluetti AC180 if
- You want the most capacity in a unit you won't expand: 1,152Wh against 1,024Wh.
- It will live somewhere cold. Bluetti rates discharge down to -4°F. EcoFlow's manual says 14°F.
- You charge your phone wirelessly. It has a 15W charging pad.
- You want a published standby draw to plan runtime around. Bluetti lists about 15W. EcoFlow lists none for the DELTA 3.
Choose the EcoFlow DELTA 3 if
- You'll carry it. It's about 27.6 pounds against about 35.3.
- You might want more capacity later. It takes EcoFlow extra batteries up to 5kWh. The AC180 can't expand.
- You want a fast charge with no app. EcoFlow lists 56 minutes to full at 1,500W. The AC180's fastest times need Turbo mode, set in the app.
- You want a fast switchover for a router, modem or laptop. EcoFlow lists under 10ms. The AC180 is listed at 20ms (Amazon and Bluetti's comparison chart). Neither is zero-break.
The two units
Bluetti AC180
1,152Wh and 1,800W in about 35.3 pounds. It refills quickly in Turbo mode, and it can't take an expansion battery.
EcoFlow DELTA 3
1,024Wh and 1,800W in about 27.6 pounds. It's the only 1kWh unit here that takes an add-on battery, up to 5kWh.
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Key specs
| Bluetti AC180 | EcoFlow DELTA 3 | |
|---|---|---|
| Capacity | 1,152Wh | 1,024Wh |
| Rated AC output | 1,800W | 1,800W |
| Weight | About 35.3 lb | About 27.6 lb |
| Wh per pound | About 33 | About 37 |
| Wall charge to full | 1.3 to 1.8 hr in Turbo mode (set in the app); 1.7 to 2.2 hr in Standard mode | 56 min (1,500W) |
| Max solar input | 500W | 500W |
| Expandable | No | Yes, up to 5kWh with an EcoFlow extra battery |
| Warranty | 5 years | 5 years |
Full specs
| Bluetti AC180 | EcoFlow DELTA 3 | |
|---|---|---|
| Surge / boost | 2,700W "Power Lifting Mode" (heating devices only) | 3,600W. X-Boost (off by default, for heating devices): 2,200W per EcoFlow's spec table, 2,600W per its manual |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycle life | 3,500+ cycles to 80% | 4,000 cycles to 80% |
| Dimensions | 13.4 x 9.7 x 12.5 in | 15.7 x 8.0 x 11.2 in |
| AC outlets | 4 | 6 |
| USB-C | 1 x 100W | 2 x 100W |
| USB-A | 4 (15W total per pair) | 2 x 18W |
| Other ports | 12V car port (10A), 15W wireless charging pad | 12V car port (10A), 2 x DC5521 (3A) |
| Wall charge to 80% | 45 min in Turbo mode (set in the app) | 30 min (Amazon listing; EcoFlow's page doesn't give an 80% time) |
| Solar voltage range | 12 to 60V | 11 to 60V, 15A max |
| Car charging | Yes, 12/24V | Yes, 12V 8A through the XT60 port; about 1.3 hr with EcoFlow's 800W Alternator Charger (an add-on) |
| UPS switchover | 20ms (Amazon listing and Bluetti's own comparison chart; not on the AC180 spec table) | Under 10ms (EcoFlow calls it a standby UPS) |
| Pass-through charging | Yes | Yes |
| Standby draw (maker's figure) | About 15W | Not published |
| Fan noise (maker's claim) | About 45dB in Silent charging mode | Under 30dB at 600W, under 40dB at 1,200W |
| App | Yes (Bluetooth) | Yes (Wi-Fi and Bluetooth) |
| Discharge temperature | -4 to 104°F (1,500W max at 86°F and above) | 14 to 113°F (manual) |
| Charge temperature | 32 to 104°F | 32 to 113°F (manual) |
Where the sources disagree:
- Bluetti AC180: Weight: Bluetti's AC180 spec table says about 35.27 lb. The Amazon listing says 37.4 lb, and Bluetti's own comparison chart on the Elite 100 V2 page says 37 lb. The page uses 35.3 lb (spec table).
- Bluetti AC180: AC outlets: Bluetti's spec table lists 4 x 120V outlets. The Amazon title reads "w/ 2 1800W (2700W peak) AC Outlets". The page uses 4.
- Bluetti AC180: Charge time: the Amazon listing says "fully charged in just 1 hour at 1440W". Bluetti's FAQ gives 1.3 to 1.8 hr in Turbo mode. The page uses Bluetti's FAQ.
- Bluetti AC180: Noise: Bluetti's comparison chart on the Elite 100 V2 page says 40dB for the AC180. The AC180 page gives about 45dB in Silent mode. Neither gives full test conditions.
- Bluetti AC180: Expansion: Bluetti's FAQ says the AC180 doesn't support capacity expansion (B80/B230/B300 only recharge it in Power Bank Mode), while a marketing heading on the same page says "Capacity Grows As Needed". The page follows the FAQ.
- EcoFlow DELTA 3: X-Boost: EcoFlow's spec table says "Max Device(s) Power (with X-Boost) 2200W". The page copy, manual (120V) and Amazon listing say over 2,600W. The page shows both.
- EcoFlow DELTA 3: Charge time: EcoFlow's page says 56 min to full on 1,500W AC alone. The Amazon listing ties the 56 min to "500W solar input and 1500W max AC input" combined. The page uses EcoFlow's page.
Specs are from Bluetti's AC180 product page and comparison chart, EcoFlow's product page and user manual, and the two Amazon listings, checked October 8, 2026.
What they will run (estimates)
Hours = capacity x 0.85 x 0.90 ÷ (load + standby draw). The 0.85 covers inverter losses. The 0.90 assumes 90% of the battery is usable. That's the figure Bluetti publishes, and we apply it to every unit because the other makers publish none. Standby draw is each maker's own figure. These are estimates, not tests. Where a maker publishes no standby draw, we show a range (see the note under the table).
| Load (typical draw) | Bluetti, 1,152Wh | DELTA 3, 1,024Wh |
|---|---|---|
| Phone charges (about 15Wh each, via USB) | About 59 charges | About 52 charges |
| Wi-Fi router (15W) | About 29 hr | About 24 to 33 hr* |
| CPAP, no heated humidifier (40W) | About 16 hr | About 14 to 16 hr* |
| Mini fridge (45W average), rough estimate | About 15 hr | About 12 to 15 hr* |
| Laptop (60W) | About 12 hr | About 10 to 11 hr* |
| 50-inch TV (100W) | About 7.7 hr | About 6.6 to 7.2 hr* |
| Full-size fridge (120W average), rough estimate | About 6.5 hr | About 5.7 to 6.1 hr* |
| Microwave (1,000W) | About 0.9 hr | About 0.8 hr* |
| Space heater (1,500W) | About 0.6 hr | About 0.5 hr* |
The fridge rows are rough because compressors cycle on and off and pull a surge at startup. The phone row runs off the USB ports, so standby draw doesn't apply.
* EcoFlow doesn't publish a standby draw for the DELTA 3, so its figures assume 9 to 18W. That spans the lowest (Anker C2000 Gen 2, 9W) to the highest (Jackery, 18W) standby draw published by the makers we cover. It's our assumption, not EcoFlow's number.
One night of outage: a full-size fridge plus a CPAP draws about 160W together. The Bluetti AC180 runs that pair for about 5.0 hours, and the EcoFlow DELTA 3 about 4.4 to 4.6 hours on an assumed 9 to 18W standby draw. Neither gets through an 8-hour night, so you'd be choosing between the fridge and the CPAP before morning.
Skip it if
Skip the AC180 if you lift it often or you might want more than 1,152Wh later.
Skip the DELTA 3 if it will sit below 14°F, or if you want a published standby draw to plan runtime around.
Questions about this pair
Which one runs longer?
On capacity alone, the AC180 holds 128Wh more (about 12.5%). EcoFlow doesn't publish a standby draw for the DELTA 3, so we assume 9 to 18W. On that assumption, a fridge and CPAP (about 160W together) would run about 4.4 to 4.6 hours on the DELTA 3 against about 5.0 on the AC180. On those numbers the AC180 runs longer, by about 0.4 to 0.6 hours.
Which charges faster?
On paper, the DELTA 3: 56 minutes to full at 1,500W with no app. The AC180 lists 1.3 to 1.8 hours to full in Turbo mode, set in the app, and 1.7 to 2.2 hours in Standard mode.
Can either one run a 2,000W appliance?
Not a motor. Both are rated 1,800W. Bluetti's Power Lifting Mode (2,700W) and EcoFlow's X-Boost (2,200W or 2,600W, depending on EcoFlow's page) are for heating devices only.
Same solar?
Both take 500W.
Related comparisons
- Bluetti AC180 vs Jackery Explorer 1000 v2
- Bluetti Elite 100 V2 vs EcoFlow DELTA 3
- Anker SOLIX C1000 vs Bluetti AC180
- Jackery Explorer 2000 v2 vs Bluetti AC180
By Mike · Last checked October 8, 2026 · Based on manufacturer specs and the Amazon listings.