Bluetti AC240
61BatteryRank score
$899as of 2026-07-11
Fair price← CompareCheck price on Amazon 
Check price on Amazon
Bluetti AC240 vs EcoFlow DELTA 3 Max
Decision readout
Better station
Too close to call overall — choose by how and where you use it.
Better buy today
No price tie-breaker today — choose based on fit and the sourced details.
EcoFlow DELTA 3 Max
66BatteryRank score
$749as of 2026-07-11
Good priceWhat changes the decision
- Home backup: EcoFlow DELTA 3 Max — more usable capacity and AC output
- CPAP & bedroom: EcoFlow DELTA 3 Max — quieter under load
- Camping & RV: EcoFlow DELTA 3 Max — lighter and easier to carry
01 · Score evidence
Score breakdown
61
Bluetti AC240
Overall
66
EcoFlow DELTA 3 Max
51
POWER
EcoFlow DELTA 3 Max +16
67
Usable capacity and how much you can run at once.
72
TRUST
Bluetti AC240 +4
68
Owner reputation, safety record, warranty, and build durability.
91
CHARGING
Bluetti AC240 +39
52
Wall and solar recharge speed.
28
LIVABILITY
EcoFlow DELTA 3 Max +46
74
Lightweight, portable, and quiet enough to live with.
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
02 · Usable energy
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
Bluetti AC240
Rated (on the box)1,536 Wh
The marketing number — total cell capacity.
Usable (at the outlet)measured1,300–1,679 Wh
~1,300-1,679 Wh (StorageReview / Trusted Reviews) · 3% below the label
EcoFlow DELTA 3 Max
Rated (on the box)2,048 Wh
The marketing number — total cell capacity.
Usable (at the outlet, est.)1,741 Wh
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
03 · Sourced hardware
Key specs, side by side
| Spec | Bluetti AC240 | EcoFlow DELTA 3 Max |
|---|---|---|
| Usable capacity | 1,536 Wh | 2,048 Wh |
| Continuous power output | 2,400 W | 2,400 W |
| Surge power output | 3,600 W | 4,800 W |
| Max solar input | 1,200 W | 500 W |
| AC charge time (0–100%) | — | 68 min |
| Weight | 33 kg | 20.3 kg |
| Rated cycle life | 3,500 cycles | 4,000 cycles |
Manufacturer-claimed unless marked verified (FCC/UL/DOE/lab). Hover any figure for its source. The better reading in each row is highlighted — lower wins for weight and recharge time.
04 · Tracked street price
Price & fair-price verdict
Bluetti AC240
$899as of 2026-07-11Fair price
EcoFlow DELTA 3 Max
$749as of 2026-07-11Good price
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- EcoFlow DELTA 3 Max #6 of 10 in Best for RV & Van Life · #9 of 10 in Best for CPAP