EcoFlow DELTA Pro Ultra
59BatteryRank score
$4,099as of 2026-07-11
Good price← CompareCheck price on Amazon 
Check price on Amazon
EcoFlow DELTA Pro Ultra vs Zendure SuperBase V6400
Decision readout
Better station
Compare the sourced facts — a complete score is not available for both stations.
Better buy today
No price tie-breaker today — choose based on fit and the sourced details.
Zendure SuperBase V6400
N/ABatteryRank score
$4,999as of 2026-07-11
Fair priceWhat changes the decision
- Home backup: EcoFlow DELTA Pro Ultra — more usable capacity and AC output
01 · Score evidence
Score breakdown
59
EcoFlow DELTA Pro Ultra
Overall
N/A
Zendure SuperBase V6400
54
POWER
EcoFlow DELTA Pro Ultra +25
29
Usable capacity and how much you can run at once.
66
TRUST
EcoFlow DELTA Pro Ultra +29
37
Owner reputation, safety record, warranty, and build durability.
N/A
CHARGING
Incomplete data
53
Wall and solar recharge speed.
56
LIVABILITY
Incomplete data
N/A
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 Pro Ultra
Rated (on the box)6,144 Wh
The marketing number — total cell capacity.
Usable (at the outlet, est.)5,222 Wh
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
Zendure SuperBase V6400
Rated (on the box)6,438 Wh
The marketing number — total cell capacity.
Usable (at the outlet, est.)4,925 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 | EcoFlow DELTA Pro Ultra | Zendure SuperBase V6400 |
|---|---|---|
| Usable capacity | 6,144 Wh | — |
| Continuous power output | 7,200 W | 3,800 W |
| Surge power output | 10,800 W | 5,000 W |
| Max solar input | 5,600 W | 3,000 W |
| AC charge time (0–100%) | — | 120 min |
| Weight | 82.4 kg | — |
| Rated cycle life | 3,500 cycles | 3,000 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 Pro Ultra
$4,099as of 2026-07-11Good price
Zendure SuperBase V6400
$4,999as of 2026-07-11Fair price
Each verdict compares today's price against that model's own tracked history — never MSRP theater.