EcoFlow · DELTA series
EcoFlow DELTA 3 Ultra Plus
Three kilowatt-hours, 74 pounds, and twice the Ultra’s solar appetite on the same tank: the DELTA 3 Ultra Plus tops the DELTA 3 line with 32 wins in 42 head-to-heads, unbeaten by any Anker. A weekend camp takes four fifths of the tank. Reviewers agree on one word, quiet, and mean it under load, where the older DELTAs got loud.
3.1 kWh · 3,600 W · 74.3 lb · 4,000 cycles · 49 head-to-heads
4,799
Power Score · Appliance Class
- 3.1 kWh
- capacity
- 3,600 W
- output
- 74.3 lb
- weight
- 4,000
- rated cycles
Should you buy it right now?
Fair price today: $1,579 is what it normally sells for. It clears 5 of 6 real-world jobs and wins 35 of 49 matchups.
Real-world jobs
5 of 6
Falls short only on Van Life Daily
Head-to-head record
35–14
49 adjudicated matchups
Verdicts by Gunner Gustafson and the Test Desk·Figures computed 2026-10-04
01 · Six real-world jobs
What the DELTA 3 Ultra Plus actually runs
The load profiles every comparison on the site is scored on, computed for this unit alone: energy needed against the usable tank after inverter losses, and whether the inverter holds and starts the biggest single load.
Weekend Camping
Clears it2 nights · Two nights off-grid with essential comfort
2,100Wh needed · 80% of the tank · 511Wh spare
Peak 75W: starts and holds
8-Hour Blackout
Clears it8 hours · Keep the essentials running through a night without power
1,645Wh needed · 63% of the tank · 966Wh spare
Peak 150W: starts and holds
CPAP Overnight
Clears it8 hours · Sleep therapy without interruption — the #1 medical use case
320Wh needed · 12% of the tank · 2,291Wh spare
Peak 40W: starts and holds
Remote Workday
Clears it8 hours · Full work day off-grid without power anxiety
910Wh needed · 35% of the tank · 1,701Wh spare
Peak 60W: starts and holds
Tailgate Party
Clears it4 hours · Game day power for the crew
670Wh needed · 26% of the tank · 1,941Wh spare
Peak 400W: starts and holds
Van Life Daily
Falls short24 hours · A full day of mobile living — the ultimate endurance test
4,685Wh needed · 179% of the tank · 2,074Wh short
Peak 150W: starts and holds
02 · Head-to-head record
35 wins in 49 written matchups
Every matchup is a full verdict scored on the six jobs above plus price, longevity and portability. This is the set shoppers search for, not a random sample.
Win share
35–14
- vs EcoFlow12–3
- vs BLUETTI7–6
- vs Anker7–2
- vs Jackery5–3
- vs Goal Zero3–0
- vs DJI1–0
winsDELTA 3 Ultra Plus vs EcoFlow DELTA 3 Max
1,014 searches reached this matchup
winsDELTA 3 Ultra Plus vs Anker SOLIX F3000
539 searches reached this matchup
winsDELTA 3 Ultra Plus vs EcoFlow DELTA Pro 3
502 searches reached this matchup
winsDELTA 3 Ultra Plus vs EcoFlow DELTA 3 Max Plus
484 searches reached this matchup
winsDELTA 3 Ultra Plus vs EcoFlow DELTA 3 1000 Air
322 searches reached this matchup
winsDELTA 3 Ultra Plus vs EcoFlow DELTA Pro
217 searches reached this matchup
03 · From the verdicts
Who it is for, and when a rival won instead
Each line is lifted from a written matchup where it decided the verdict, and links to the page it came from. Repeated across many matchups means it is the unit’s signature, not one author’s opinion.
Buy the DELTA 3 Ultra Plus if…
You want the faster 10ms UPS and EcoFlow's richer app, including Storm Guard auto-charging [A12].
Decided 7 matchups · read one →
You want more margin on every scenario, not just the one that fails outright. An 8-hour blackout finishes at 63% used instead of 94%.
Decided 3 matchups · read one →
Anyone who wants a longer scenario margin across camping, blackout, and workday loads
Decided 3 matchups · read one →
You need a station that goes in a truck bed or a van for trips and still covers the house in an outage: at 74.3 lb, the Ultra Plus is the one you can lift.
Decided 2 matchups · read one →
A rival won when…
You want the widest scenario coverage from a single unit without adding a second battery.
Decided 9 matchups · read one →
You want a lighter, more portable unit — 48.5 lbs is a one-hand carry the Ultra Plus's 77.2 lbs isn't.
Decided 3 matchups · read one →
A home that already has rooftop solar and wants to keep it: EcoFlow says the TITAN Series couples to compatible existing solar through the Smart Home Panel 10 and a CT sensor [B20].
Decided 3 matchups · read one →
You carry it. Across a parking lot to a tailgate, in from the car at a campsite, up to a second-floor apartment. 23.8 lbs is a one-hand lift and it stays one [B1].
Decided 2 matchups · read one →
04 · Price history
What the DELTA 3 Ultra Plus actually sells for
The number on the buy button, read twice a day, one point per day. Never the sticker, never a “was” price.
Read from us.ecoflow.com twice a day since July 17 · 80 days
Carried on 76% of days tracked · dips reach $1,499
Built from the Oct 4, 7 PM UTC read.
$1,599
Usual price
76% of days tracked
$1,499
Best we've seen
August 4
$1,579
Today
at usual
$1,599
Highest seen
0 days above usual
How to read this
- Usual is the price the unit carried most of the time, tested for how long it held rather than how often we looked. A weekend promotion cannot move it.
- Best is the lowest price we have read on the store itself. Typed coupon codes, member-only prices and marketplace listings are not counted; anything applied automatically at checkout is.
- A gap in the line is a day we could not read a price. We never draw across one, and we never show the store’s own “was” price.
Method on the methodology page.
Share the numbers
EcoFlow DELTA 3 Ultra Plus: usually $1,599, best $1,499 (Aug 4), today $1,579 on us.ecoflow.com. Tracked twice a day since Jul 17. https://stationarena.com/products/ecoflow-delta-3-ultra-plus#price-history
Alerts for the DELTA 3 Ultra Plus
One email when it drops below $1,599, comes back in stock, or a newer model in this line appears. Nothing else.
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Black Friday · 38 days out
Will the EcoFlow DELTA 3 Ultra Plus go on sale for Black Friday?
Price to beat $1,499Nobody knows until EcoFlow moves, but we know what a real deal would be: anything under $1,499, the lowest price we have recorded (August 4). Last Black Friday it was reported at $1,499 at EcoFlow store. It has sat at least 5% under its usual $1,599 on 19 of the 80 days we have tracked. We read the store twice a day, and the moment it drops it shows on our Black Friday deals page.
05 · Voices
What 2 owner reports say about the DELTA 3 Ultra Plus
Owner reports are paraphrased from public YouTube comments and each links to its source; reviewer consensus is counted from cited excerpts, never quoted; our own verdicts are quoted. Specs on this page never come from any of them.
- 100%
- positive
- 2
- self-declared owners
- 1
- measured reports
- 1
- videos
- 52%
- EcoFlow norm
- 2026–2026
- reporting period
2 for, 0 against
tenure rarely stated
numbers, not impressions
1 channel
across 1,668 reports
2026-08-17 to 2026-08-17
Weighted read
100% positive weighted · corpus 51% · above the norm
Raw counts reward whoever writes most, and people write when something breaks. Here each report is weighted by what the complaint costs a buyer (a failure outranks an app gripe) and by its evidence (a measured owner report outranks a shopper’s opinion), then compared with every report in the corpus.
- Failures, returns, support0 against · 0 for
- How it performs0 against · 1 for
- How it feels to use0 against · 1 for
By topic, against the EcoFlow norm
Bars count this unit’s reports; the tick is the share of positive reports for the same topic across every EcoFlow unit in the corpus.
- Price & value1 measured100% positive · brand 58%1
- Capacity & runtime100% positive · brand 81%1
left: negative · right: positive
What owners praise
What owners complain about
- Nothing on this side yet.
Reviewer consensus
10/14 positive excerpts, 5 sources
Professional reviewers consistently describe the fan noise as very quiet even under heavy load, comparable to EcoFlow's premium DELTA Pro Ultra line.
thesolarlab.com · postperspective.com · appleinsider.com · digitaltrends.com · storagereview.com · researched 2026-07-09
EcoFlow, brand-wide
52% positive across 1,668 reports. The brand-wide complaint is shipping & availability (91% negative); the brand-wide praise is capacity & runtime (81% positive).
From the test desk
“Take the DELTA 3 Ultra Plus if your real draw regularly pushes past 2,048Wh.”
“Buy the DELTA 3 Ultra Plus at $1,599.”
“Buy the DELTA 3 Ultra Plus unless you specifically need the Pro 3's extra 1,024Wh of capacity or its higher continuous output for whole-home backup.”
06 · Where each number comes from
Spec sheet, in four cards
Every field carries its source: green is the manufacturer’s own document, blue was adjudicated after sources disagreed, grey is the catalogue as imported. Then compare it line by line with the units people actually weigh it against.
Battery
3072
Capacity (Wh)
- ChemistryLiFePO4
- Charging Cycles4000
- Battery Expansion FeasibilityYes
Power out
3600
Output (W)
- Surge Peak7200W
- AC Outlets4
- 240V Outlets0
- 30A RV Outlets1
- 12V Car Outlets1
- USB-C Ports2
- USB-A Ports2
- USB-C Charging Outputs140W
Charging
1600
Solar Input (W)
- Solar Input TypeXT60
Living with it
74.3
Weight (lbs)
- Noise Level (db)30
- UPSYes (10ms)
- App ControlYes
- Warranty (Years)5
Compare it with
DELTA 3 Ultra Plus vs
leads on 4 · trails on 2
| Spec | DELTA 3 Ultra Plus | DELTA 3 Max | Gap |
|---|---|---|---|
| Usual price | $1,599 | $899 ● | +$700 |
| Capacity (Wh) | 3072 ● | 2048 | +1024 |
| Output (W) | 3600 ● | 2400 | +1200 |
| Surge (W) | 7200W ● | 4800W | +2400 |
| Rated cycles | 4000 | 4000 | 0 |
| Solar input (W) | 1600 ● | 500 | +1100 |
| Weight (lb) | 74.3 | 50.7 ● | +23.6 |
| Noise (dB) | 30 | 30 | 0 |
| AC outlets | 4 | 4 | 0 |
| USB-C ports | 2 | 2 | 0 |
| Warranty (yr) | 5 | 5 | 0 |
| Chemistry | LiFePO4 | LiFePO4 | |
| UPS | Yes (10ms) | Yes (10ms) |
● marks the better figure where direction is clear. Price is each unit’s usual price.
Read the full verdict →07 · EcoFlow DELTA line
Where it sits in the line
Capacity bars are to scale across the line; prices are each unit’s usual price, not today’s.
DELTA 3 1000 Air
960 Wh · $309
DELTA 2
1 kWh · $499
DELTA 3
1 kWh · $629
DELTA 3 Classic
1 kWh · $499
DELTA 3 Plus
1 kWh · $719
DELTA 3 1500
1.5 kWh · $599
DELTA 2 Max
2 kWh · $1,049
DELTA 3 Max
2 kWh · $899
DELTA 3 Max Plus
2 kWh · $1,199
DELTA 3 Ultra
3.1 kWh · $1,399
DELTA 3 Ultra Plus
3.1 kWh · $1,599
Not yet on sale: EcoFlow’s new flagship line: one 5 kWh battery, up to 7,200 W and 240 V split-phase, in three versions from $2,499, as EcoFlow lists them. EcoFlow TITAN: What the Launch Page Doesn’t Tell You
Not yet on sale: A 4 kW, 3,072 Wh jobsite power station in a sealed metal body with a built-in RCD, aimed at the European contractor who cannot run a combustion generator. EcoFlow PowerRock 4000 Debuts: A 7.2 kW Battery for the Jobsite
08 · At its usual price
Cost of ownership
Cycle life is the manufacturer’s rating to 80% capacity; the lifetime figure is that rating times the nameplate capacity.
$0.52
per Wh
at $1,599
$0.13
per lifetime kWh
12,288 kWh over 4,000 cycles
11.0 yr
if cycled daily
38 yr at weekends only
5 yr
warranty
$320 per covered year
09 · From the matchups
Questions people ask
Is the DELTA 3 Ultra Plus worth $700 more than the DELTA 3 Max?
If your draw regularly exceeds 2,048Wh, yes — it wins four of six modeled scenarios outright, including Weekend Camping where the Max falls short. If it doesn't, the Max is cheaper on every ownership metric the engine tracks: $0.10 against $0.12 per lifetime kWh and $160 against $300 per warranty-year.
Is the DELTA 3 Ultra Plus new? Is there long-term owner data on it?
It's a recent release, and independent long-term forum data from buyers is still thin. Most of the evidence available comes from professional review coverage rather than months of field use, which is worth factoring in if you're relying on long-term reliability data to decide.
Is the Anker SOLIX F3000 worth picking over the EcoFlow DELTA 3 Ultra Plus to save $99?
Only if you're charging from a big solar array. The F3000 takes 2,400W of solar to the EcoFlow's 1,600W, and that's the one advantage the $99 can't buy back. On the other differences, the DELTA 3 Ultra Plus is ahead: 17.2 lb lighter, a rated 10 ms transfer instead of 20, a published 30 dB noise rating, and 140W over USB-C to the Anker's 100W.
Which is quieter, the DELTA 3 Ultra Plus or the SOLIX F3000?
EcoFlow rates the DELTA 3 Ultra Plus at 30 dB. Anker doesn't publish a decibel figure for the F3000, so there's no like-for-like number to compare. Reviewers call both quiet under heavy load, with the EcoFlow compared favorably with EcoFlow's own DELTA 2 Max and DELTA Pro Ultra [A1][A2] and the F3000 described as a marked improvement on earlier SOLIX models [B5].
Is the DELTA Pro 3 worth $1,200 more than the DELTA 3 Ultra Plus?
Only if you specifically need its extra 1,024Wh of capacity or higher 4,000W continuous output, whole-home backup, a heavier daily draw, a dedicated circuit. Everywhere else it's a weaker buy: it holds less surge reserve (6,000W against 7,200W, a 1.5x ratio against 2.0x), costs 67% more per lifetime kilowatt-hour, and its composite power score is only 5% higher despite the price more than doubling.
Some links are affiliate links; they never change the price you pay or which price we show. Owner reports are paraphrased from public comments and link to their source.