Bluetti Elite 300 vs EcoFlow DELTA Pro 3

Bluetti Elite 300

44BatteryRank score · Limited

Decision readout

Better station

EcoFlow DELTA Pro 3 leads by 32 points overall.

EcoFlow DELTA Pro 3

76BatteryRank score · Excellent

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What changes the decision

Home backup: EcoFlow DELTA Pro 3 — more AC-delivered capacity and higher AC output
Camping & RV: Bluetti Elite 300 — lighter and easier to carry

By the BatteryRank Engineering Team

01 · Score evidence

Score breakdown

Bluetti Elite 300

Overall

EcoFlow DELTA Pro 3

POWER

EcoFlow DELTA Pro 3 +70

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

TRUST

Bluetti Elite 300 +21

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

CHARGING

Incomplete data

N/A

Wall and solar recharge speed.

LIVABILITY

Bluetti Elite 300 +64

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 Elite 300

Rated (on the box)

3,014.4 Wh

claimed sources4.bluettipower.com ↗2026-10-02

The marketing number — total cell capacity.

AC delivered (est.)

2,562 Wh

estimated 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.

EcoFlow DELTA Pro 3

Rated (on the box)

4,096 Wh

claimed sourceus.ecoflow.com ↗2026-07-04

The marketing number — total cell capacity.

AC deliveredmeasured

3,790 Wh

verified source3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated2026-07-04

3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated · 7% below the label

03 · Same assumptions

Same-device runtime

Estimated runtime for the same sourced devices on Bluetti Elite 300 and EcoFlow DELTA Pro 3
Device	Bluetti Elite 300	EcoFlow DELTA Pro 3	Assumption
CPAP (humidifier off)	about 35.6 nights	about 52.6 nights	9 W · 2026-07-06
CPAP (heated humidifier on)	about 5.7 nights	about 8.5 nights	56 W · 2026-07-06
Refrigerator (full-size)	about 41 hours	about 60 hours	180 W × 35% duty cycle · 2026-07-06
Wi-Fi router + modem	about 142 hours	about 211 hours	18 W · 2026-07-06
Laptop (65W charger)	about 79 hours	about 117 hours	65 W × 50% duty cycle · 2026-07-06
Phone (one full charge)	about 128 full charges	about 189 full charges	20 W · 2026-07-06

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 Bluetti Elite 300 and EcoFlow DELTA Pro 3
Spec	Bluetti Elite 300	EcoFlow DELTA Pro 3
AC-delivered capacity	2,562 Whest.. Show source estimated sources4.bluettipower.com ↗2026-10-02	3,790 Whverified. Show source verified source3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated2026-07-04
Continuous power output	2,400 W. Show source claimed sources4.bluettipower.com ↗2026-10-02	4,000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04
Surge power output	—	8,000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04
Max solar input	1,200 W. Show source claimed sources4.bluettipower.com ↗2026-10-02	2,600 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04
AC charge time (0–100%)	168 min. Show source claimed sources4.bluettipower.com ↗2026-10-02	—
Weight	26.3 kg. Show source claimed sources4.bluettipower.com ↗2026-10-02	51.5 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04
Rated cycle life	—	4,000 cycles. Show source claimed sourceus.ecoflow.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

Bluetti Elite 300 #8 of 8 in Best 3,000 Wh Stations
EcoFlow DELTA Pro 3 #1 of 10 in Best for RV & Van Life · #2 XL / home backup in Best Portable Power Stations

Quick answers

Is the Bluetti Elite 300 better than the EcoFlow DELTA Pro 3?: EcoFlow DELTA Pro 3 leads by 32 points overall.
Which has more usable capacity, the Bluetti Elite 300 or EcoFlow DELTA Pro 3?: The EcoFlow DELTA Pro 3, by 1,228 Wh — 2,562 Wh versus 3,790 Wh, a 48% advantage. At a 60 W load that is roughly 20.5 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 Bluetti Elite 300 or EcoFlow DELTA Pro 3?: The EcoFlow DELTA Pro 3: 2,400 W versus 4,000 W continuous. That gap matters only if a load sits between the two numbers — below 2,400 W both run it, above 4,000 W neither does. Only the EcoFlow DELTA Pro 3 publishes a sourced surge figure (8,000 W); the Bluetti Elite 300 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 Bluetti Elite 300 and EcoFlow DELTA Pro 3?: On the same sourced load — a refrigerator (full-size) — the EcoFlow DELTA Pro 3 runs longer: 60.2 hours against 40.7. These are planning estimates from each model's AC-delivered capacity, not stopwatch tests; real duty cycle and temperature move them.
Which is lighter, the Bluetti Elite 300 or EcoFlow DELTA Pro 3?: The Bluetti Elite 300, by 25.2 kg (26.3 kg versus 51.5 kg). Both weights are manufacturer figures for the bare unit; cables and a solar panel add to whatever you actually carry.
Which model should I buy for my use case?: On the sub-scores that describe each use case: the EcoFlow DELTA Pro 3 for home backup; the Bluetti Elite 300 for camping & rv. They split, so the honest answer depends on which of those you are actually buying for.

Bluetti Elite 300 vs EcoFlow DELTA Pro 3