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EcoFlow DELTA Pro Ultra vs Zendure SuperBase V6400

EcoFlow DELTA Pro Ultra — front view

EcoFlow DELTA Pro Ultra

57BatteryRank score · Balanced
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Decision readout
Better station

EcoFlow DELTA Pro Ultra leads by 11 points overall.

Zendure SuperBase V6400 — front view

Zendure SuperBase V6400

46BatteryRank score · Limited
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What changes the decision

By the BatteryRank Engineering Team

01 · Score evidence

Score breakdown

57
EcoFlow DELTA Pro Ultra
Overall
46
Zendure SuperBase V6400
55
POWER
EcoFlow DELTA Pro Ultra +3
52

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

64
TRUST
EcoFlow DELTA Pro Ultra +29
35

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

N/A
CHARGING
Incomplete data
43

Wall and solar recharge speed.

44
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. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04

The marketing number — total cell capacity.

AC delivered (est.)
5,222 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 and Zendure SuperBase V6400
DeviceEcoFlow DELTA Pro UltraZendure SuperBase V6400Assumption
CPAP (humidifier off)about 72.5 nightsabout 76.0 nights9 W ·
CPAP (heated humidifier on)about 11.7 nightsabout 12.2 nights56 W ·
Refrigerator (full-size)about 83 hoursabout 87 hours180 W × 35% duty cycle ·
Wi-Fi router + modemabout 290 hoursabout 304 hours18 W ·
Laptop (65W charger)about 161 hoursabout 168 hours65 W × 50% duty cycle ·
Phone (one full charge)about 261 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 and Zendure SuperBase V6400
SpecEcoFlow DELTA Pro UltraZendure SuperBase V6400
AC-delivered capacity
5,222 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04
5,472 Whest.. Show sourceestimated sourceus.zendure.com ↗2026-07-04
Continuous power output
7,200 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
3,800 W. Show sourceclaimed sourceus.zendure.com ↗2026-07-04
Surge power output
10,800 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
5,000 W. Show sourceclaimed sourceus.zendure.com ↗2026-07-04
Max solar input
5,600 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
82.4 kg. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
—
Rated cycle life
3,500 cycles. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
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 better than the Zendure SuperBase V6400?
EcoFlow DELTA Pro Ultra leads by 11 points overall.
Which has more usable capacity, the EcoFlow DELTA Pro Ultra or Zendure SuperBase V6400?
Neither, in any way you would notice: 5,222 Wh against 5,472 Wh is a 4.8% gap, which is smaller than the swing you get from running the same load on a cold morning. Treat them as the same size and decide on output, weight, or today's price instead. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices.
Which has more AC output, the EcoFlow DELTA Pro Ultra or Zendure SuperBase V6400?
The EcoFlow DELTA Pro Ultra: 7,200 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 7,200 W neither does. Surge headroom follows the same order: 10,800 W against 5,000 W, and surge is what decides whether a compressor or pump actually starts.
How does runtime compare between the EcoFlow DELTA Pro Ultra and Zendure SuperBase V6400?
They run within 4.8% of each other on the same load — about 82.9 hours each on a refrigerator (full-size). Runtime will not separate these two; the deciding factor is somewhere else.
Which model should I buy for my use case?
On the sub-scores that describe each use case: the EcoFlow DELTA Pro Ultra 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

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