Bluetti Elite 400
45BatteryRank score · Limited
$1,399as of
Insufficient price history← CompareCheck price on Amazon 
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Bluetti Elite 400 vs EcoFlow DELTA Pro 3
Decision readout
Better station
EcoFlow DELTA Pro 3 leads by 30 points overall.
Better buy today
No purchase urgency: the performance leader is not at a Good or Great price today.
EcoFlow DELTA Pro 3
75BatteryRank score · Excellent
$2,399as of
Fair priceWhat changes the decision
- Home backup: EcoFlow DELTA Pro 3 — more AC-delivered capacity and higher AC output
- Camping & RV: Bluetti Elite 400 — lighter and easier to carry
01 · Score evidence
Score breakdown
45
Bluetti Elite 400
Overall
75
EcoFlow DELTA Pro 3
37
POWER
EcoFlow DELTA Pro 3 +49
86
Battery-side usable capacity and how much you can run at once.
56
TRUST
EcoFlow DELTA Pro 3 +18
74
Owner reputation, safety record, warranty, and build durability.
56
CHARGING
Incomplete data
N/A
Wall and solar recharge speed.
38
LIVABILITY
Bluetti Elite 400 +9
29
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 400
Rated (on the box)
3,840 Wh. Show source
claimed sources4.bluettipower.com ↗2026-07-27The marketing number — total cell capacity.
AC delivered (est.)
2,938 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat 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. Show source
claimed sourceus.ecoflow.com ↗2026-07-04The marketing number — total cell capacity.
AC deliveredmeasured
3,790 Wh. Show source
verified source3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated2026-07-043790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated · 7% below the label
03 · Same assumptions
Same-device runtime
| Device | Bluetti Elite 400 | EcoFlow DELTA Pro 3 | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 40.8 nights | about 52.6 nights | 9 W · |
| CPAP (heated humidifier on) | about 6.6 nights | about 8.5 nights | 56 W · |
| Refrigerator (full-size) | about 47 hours | about 60 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 163 hours | about 211 hours | 18 W · |
| Laptop (65W charger) | about 90 hours | about 117 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 146 full charges | about 189 full charges | 20 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
| Spec | Bluetti Elite 400 | EcoFlow DELTA Pro 3 |
|---|---|---|
| AC-delivered capacity | 2,938 Whest.. Show sourceestimated sources4.bluettipower.com ↗2026-07-27 | 3,790 Whverified. Show sourceverified source3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated2026-07-04 |
| Continuous power output | 2,600 W. Show sourceclaimed sources4.bluettipower.com ↗ | 4,000 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Surge power output | 5,200 W. Show sourceclaimed sources4.bluettipower.com ↗ | 8,000 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Max solar input | 1,000 W. Show sourceclaimed sources4.bluettipower.com ↗ | 2,600 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Weight | 39 kg. Show sourceclaimed sources4.bluettipower.com ↗ | 51.5 kg. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Rated cycle life | 3,000 cycles. Show sourceclaimed sources4.bluettipower.com ↗ | 4,000 cycles. Show sourceclaimed sourceus.ecoflow.com ↗ |
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.
05 · Tracked street price
Price & fair-price verdict
Bluetti Elite 400
$1,399as of Insufficient price history
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- 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 400 better than the EcoFlow DELTA Pro 3?
- EcoFlow DELTA Pro 3 leads by 30 points overall. No purchase urgency: the performance leader is not at a Good or Great price today.
- Which has more usable capacity, the Bluetti Elite 400 or EcoFlow DELTA Pro 3?
- The EcoFlow DELTA Pro 3, by 852 Wh — 2,938 Wh versus 3,790 Wh, a 29% advantage. At a 60 W load that is roughly 14.2 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 400 or EcoFlow DELTA Pro 3?
- The EcoFlow DELTA Pro 3: 2,600 W versus 4,000 W continuous. That gap matters only if a load sits between the two numbers — below 2,600 W both run it, above 4,000 W neither does. Surge headroom follows the same order: 5,200 W against 8,000 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the Bluetti Elite 400 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 46.6. 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 400 or EcoFlow DELTA Pro 3?
- The Bluetti Elite 400, by 12.5 kg (39 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 400 for camping & rv. They split, so the honest answer depends on which of those you are actually buying for.
Keep deciding
- Full scorecard, specs & price for Bluetti Elite 400 →
- Full scorecard, specs & price for EcoFlow DELTA Pro 3 →
- See more alternatives to Bluetti Elite 400 →
- See more alternatives to EcoFlow DELTA Pro 3 →
- What size do you need? →
- Browse all rankings →
- Check device runtime evidence →
- Compare outage and trip load plans →
- Browse complete power kits →
- Capacity vs output explained →
- Battery cycle-life thresholds →
- UPS behavior explained →