BatteryRank
Power StationsRankingsWhat Can It Run?CompareToolsGuidesHow we score
← Compare

EcoFlow DELTA Pro Ultra X vs Zendure SuperBase V6400

EcoFlow DELTA Pro Ultra X — front view

EcoFlow DELTA Pro Ultra X

80BatteryRank score · Excellent
Check price on Amazon
Decision readout
Better station

EcoFlow DELTA Pro Ultra X leads by 34 points overall.

Zendure SuperBase V6400 — front view

Zendure SuperBase V6400

46BatteryRank score · Limited
Check price on Amazon
What changes the decision

By the BatteryRank Engineering Team

01 · Score evidence

Score breakdown

80
EcoFlow DELTA Pro Ultra X
Overall
46
Zendure SuperBase V6400
78
POWER
EcoFlow DELTA Pro Ultra X +26
52

Battery-side usable capacity and how much you can run at once.

97
TRUST
EcoFlow DELTA Pro Ultra X +62
35

Owner reputation, safety record, warranty, and build durability.

89
CHARGING
EcoFlow DELTA Pro Ultra X +46
43

Wall and solar recharge speed.

39
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 X
Rated (on the box)
12,288 Wh. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04

The marketing number — total cell capacity.

AC delivered (est.)
10,445 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

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. Show sourceclaimed sourceus.zendure.com ↗2026-07-04

The marketing number — total cell capacity.

AC delivered (est.)
5,472 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.

03 · Same assumptions

Same-device runtime

Estimated runtime for the same sourced devices on EcoFlow DELTA Pro Ultra X and Zendure SuperBase V6400
DeviceEcoFlow DELTA Pro Ultra XZendure SuperBase V6400Assumption
CPAP (humidifier off)about 145.1 nightsabout 76.0 nights9 W ·
CPAP (heated humidifier on)about 23.3 nightsabout 12.2 nights56 W ·
Refrigerator (full-size)about 166 hoursabout 87 hours180 W × 35% duty cycle ·
Wi-Fi router + modemabout 580 hoursabout 304 hours18 W ·
Laptop (65W charger)about 321 hoursabout 168 hours65 W × 50% duty cycle ·
Phone (one full charge)about 522 full chargesabout 273 full charges20 W ·

One device at a time; estimates use each station's usable AC energy. Build your own load →

04 · Sourced hardware

Key specs, side by side

Key sourced specifications for EcoFlow DELTA Pro Ultra X and Zendure SuperBase V6400
SpecEcoFlow DELTA Pro Ultra XZendure SuperBase V6400
AC-delivered capacity
10,445 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04
5,472 Whest.. Show sourceestimated sourceus.zendure.com ↗2026-07-04
Continuous power output
12,000 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
3,800 W. Show sourceclaimed sourceus.zendure.com ↗2026-07-04
Surge power output—
5,000 W. Show sourceclaimed sourceus.zendure.com ↗2026-07-04
Max solar input
10,000 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
3,000 W. Show sourceclaimed sourceus.zendure.com ↗2026-07-04
AC charge time (0–100%)—
120 min. Show sourceclaimed sourceus.zendure.com ↗2026-07-04
Weight
135.5 kg. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
—
Rated cycle life—
3,000 cycles. Show sourceclaimed sourceus.zendure.com ↗2026-07-04

Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.

Where these rank

Where to buy

Affiliate links: we may earn a commission if you buy, at no extra cost to you. Commission never affects our rankings.

Quick answers

Is the EcoFlow DELTA Pro Ultra X better than the Zendure SuperBase V6400?
EcoFlow DELTA Pro Ultra X leads by 34 points overall.
Which has more usable capacity, the EcoFlow DELTA Pro Ultra X or Zendure SuperBase V6400?
The EcoFlow DELTA Pro Ultra X, by 4,973 Wh — 10,445 Wh versus 5,472 Wh, a 91% advantage. At a 60 W load that is roughly 82.9 extra hours before the battery is empty. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices, which is always less than the number on the box.
Which has more AC output, the EcoFlow DELTA Pro Ultra X or Zendure SuperBase V6400?
The EcoFlow DELTA Pro Ultra X: 12,000 W versus 3,800 W continuous. That gap matters only if a load sits between the two numbers — below 3,800 W both run it, above 12,000 W neither does. Only the Zendure SuperBase V6400 publishes a sourced surge figure (5,000 W); the EcoFlow DELTA Pro Ultra X has no sourced surge figure, so startup capability is only half-answered here — check the missing side before planning around a motor or compressor load.
How does runtime compare between the EcoFlow DELTA Pro Ultra X and Zendure SuperBase V6400?
On the same sourced load — a refrigerator (full-size) — the EcoFlow DELTA Pro Ultra X runs longer: 165.8 hours against 86.9. These are planning estimates from each model's AC-delivered capacity, not stopwatch tests; real duty cycle and temperature move them.
Which model should I buy for my use case?
On the sub-scores that describe each use case: the EcoFlow DELTA Pro Ultra X for home backup. One model leads every use case we score here, which makes this an unusually clean choice.

Keep deciding

Scores computed from sourced data · prices timestamped · tap or focus a figure to view its source

Some links on this page are affiliate links — we may earn a commission if you buy through them, at no extra cost to you.