EcoFlow DELTA 3 Ultra
59BatteryRank score
$1,299as of 2026-07-11
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EcoFlow DELTA 3 Ultra vs EcoFlow DELTA Pro 3
Decision readout
Better station
EcoFlow DELTA Pro 3 leads by 15 points overall.
Better buy today
No purchase urgency: the performance leader is not at a Good or Great price today.
EcoFlow DELTA Pro 3
74BatteryRank score
$2,599as of 2026-07-11
Fair priceWhat changes the decision
- Home backup: EcoFlow DELTA Pro 3 — more usable capacity and AC output
- Camping & RV: EcoFlow DELTA 3 Ultra — lighter and easier to carry
01 · Score evidence
Score breakdown
59
EcoFlow DELTA 3 Ultra
Overall
74
EcoFlow DELTA Pro 3
55
POWER
EcoFlow DELTA Pro 3 +28
83
Usable capacity and how much you can run at once.
61
TRUST
EcoFlow DELTA Pro 3 +12
73
Owner reputation, safety record, warranty, and build durability.
61
CHARGING
Incomplete data
N/A
Wall and solar recharge speed.
65
LIVABILITY
EcoFlow DELTA 3 Ultra +16
49
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.
EcoFlow DELTA 3 Ultra
Rated (on the box)3,072 Wh
The marketing number — total cell capacity.
Usable (at the outlet, est.)2,611 Wh
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
EcoFlow DELTA Pro 3
Rated (on the box)4,096 Wh
The marketing number — total cell capacity.
Usable (at the outlet)measured3,790 Wh
3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated · 7% below the label
03 · Sourced hardware
Key specs, side by side
| Spec | EcoFlow DELTA 3 Ultra | EcoFlow DELTA Pro 3 |
|---|---|---|
| Usable capacity | 3,072 Wh | 4,096 Wh |
| Continuous power output | 3,600 W | 4,000 W |
| Surge power output | 7,200 W | 8,000 W |
| Max solar input | 800 W | 2,600 W |
| AC charge time (0–100%) | 89 min | — |
| Weight | 32.7 kg | 51.5 kg |
| Rated cycle life | 4,000 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
EcoFlow DELTA 3 Ultra
$1,299as of 2026-07-11Good price
EcoFlow DELTA Pro 3
$2,599as of 2026-07-11Fair price
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- EcoFlow DELTA Pro 3 #2 XL / home backup in Best Portable Power Stations · #2 of 10 in Best for RV & Van Life