EcoFlow · DELTA series
EcoFlow DELTA 3 1500
The DELTA 3 1500 sits halfway between the DELTA 3 Plus and the DELTA 2 Max, 512 watt-hours from each, and reviewers say the insides are a hybrid too, DELTA 2 hardware under a DELTA 3 shirt, hence their doubts. It wins 10 of 13 head-to-heads. Two owners wrote in; one metered 89 percent of the rated tank.
1.5 kWh · 1,800 W · 36 lb · 3,000 cycles · 26 head-to-heads
3,548
Power Score · Appliance Class
- 1.5 kWh
- capacity
- 1,800 W
- output
- 36 lb
- weight
- 3,000
- rated cycles
Should you buy it right now?
EcoFlow has retired the DELTA 3 1500. The closest current model is the DELTA 3 Max. The history below still helps with used-market pricing.
Typical while sold
$599
No longer sold
Real-world jobs
3 of 6
Falls short on Weekend Camping, 8-Hour Blackout and Van Life Daily
Head-to-head record
10–15–1
26 adjudicated matchups
Verdicts by Ian Schneider and the Test Desk·Figures computed 2026-10-04
01 · Six real-world jobs
What the DELTA 3 1500 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
Falls short2 nights · Two nights off-grid with essential comfort
2,100Wh needed · 161% of the tank · 794Wh short
Peak 75W: starts and holds
8-Hour Blackout
Falls short8 hours · Keep the essentials running through a night without power
1,645Wh needed · 126% of the tank · 339Wh short
Peak 150W: starts and holds
CPAP Overnight
Clears it8 hours · Sleep therapy without interruption — the #1 medical use case
320Wh needed · 25% of the tank · 986Wh spare
Peak 40W: starts and holds
Remote Workday
Clears it8 hours · Full work day off-grid without power anxiety
910Wh needed · 70% of the tank · 396Wh spare
Peak 60W: starts and holds
Tailgate Party
Clears it4 hours · Game day power for the crew
670Wh needed · 51% of the tank · 636Wh 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 · 359% of the tank · 3,379Wh short
Peak 150W: starts and holds
02 · Head-to-head record
10 wins in 26 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
10–15–1
- vs EcoFlow3–7–1
- vs BLUETTI3–2
- vs Anker0–3
- vs DJI1–2
- vs Jackery2–1
- vs Goal Zero1–0
losesDELTA 3 1500 vs EcoFlow DELTA 3 Classic
400 searches reached this matchup
losesDELTA 3 1500 vs Jackery Explorer 1500 v2
228 searches reached this matchup
winsDELTA 3 1500 vs EcoFlow DELTA 3 Plus
187 searches reached this matchup
winsDELTA 3 1500 vs DJI Power 1000
170 searches reached this matchup
losesDELTA 3 1500 vs EcoFlow RIVER 2 Pro
155 searches reached this matchup
winsDELTA 3 1500 vs BLUETTI Elite 100 V2
122 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 1500 if…
You already own one and it still works. Nothing here is an argument to replace a running unit. 36 lbs, 1,800W, 3,000 cycles minimum: none of that changed when the listing came down.
Decided 11 matchups · read one →
You want the same 1,536Wh for $400 less and half the weight — 36 pounds you can move one-handed.
Decided 5 matchups · read one →
You've found leftover retailer stock. Judge it on the specs here rather than on the assumption that discontinued means bargain, and weigh it against the failure reports posters raised about this platform [A1][A2].
Decided 4 matchups · read one →
Buyers who want the most usable watt-hours per dollar, with room to add EcoFlow expansion batteries later.
Decided 3 matchups · read one →
A rival won when…
You want the proven, better-documented unit and will pay $400 and carry 72 pounds for it.
Decided 9 matchups · read one →
You're buying for the blackout. 1,741Wh usable clears the eight-hour profile with 96Wh left where the 1500 stops 339Wh short, and that single flip is the whole reason to spend $899.
Decided 3 matchups · read one →
Buy it if you need the 30A RV outlet, which the DELTA 3 1500 does not carry at all.
Decided 3 matchups · read one →
You want a first power station rather than a project: $349, five years of cover, a 3,000-cycle pack, and nothing to assemble, expand or plan around.
Decided 3 matchups · read one →
04 · Price history
What the DELTA 3 1500 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 18 · 11 days · 68 gaps
Carried on 100% of days tracked · dips reach $599
Built from the Oct 4, 7 PM UTC read.
$599
Usual price
100% of days tracked
$599
Best we've seen
July 28
$599
Today
at usual
$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 1500: usually $599, best $599 (Jul 28), today $599 on us.ecoflow.com. Tracked twice a day since Jul 18. https://stationarena.com/products/ecoflow-delta-3-1500#price-history
Alerts for the DELTA 3 1500
One email when it drops below $599, comes back in stock, or a newer model in this line appears. Nothing else.
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Black Friday · 31 days out
Will the EcoFlow DELTA 3 1500 go on sale for Black Friday?
Price to beat $599Nobody knows until EcoFlow moves, but in 11 days we have tracked it, it has never been discounted, so any real cut would be a first. 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 1500
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
- 2
- measured reports
- 1
- videos
- 52%
- EcoFlow norm
- 2025–2025
- reporting period
2 for, 0 against
tenure rarely stated
numbers, not impressions
1 channel
across 1,668 reports
2025-01-24 to 2025-01-24
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.
- Capacity & runtime1 measured100% positive · brand 81%1
- Price & value1 measured100% positive · brand 58%1
left: negative · right: positive
Reviewer consensus
0/5 positive excerpts, 1 sources
Forum posters flagged the Delta 3 1500 as less reliable than EcoFlow's earlier Delta 2, both from direct failure reports and from its unusual hybrid Delta 2/Delta 3 hardware platform.
diysolarforum.com · researched 2026-07-17
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 Classic.”
“Same 1,536Wh battery, and the Jackery is the better one to keep.”
“For most buyers the DELTA 3 1500 is the better deal: it holds 1,536Wh against the Plus's 1,024Wh, costs $100 less, and works out cheaper per lifetime kilowatt-hour at $0.13 against $0.17 — even though the Plus is rated…”
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
1536
Capacity (Wh)
- ChemistryLiFePO4
- Charging Cycles3000
- Battery Expansion FeasibilityYes
Power out
1800
Output (W)
- Surge Peak3600W
- AC Outlets6
- 240V Outlets0
- 30A RV Outlets0
- 12V Car Outlets1
- USB-C Ports2
- USB-A Ports4
- USB-C Charging Outputs140W
Charging
500
Solar Input (W)
- Solar Input TypeNot Specified
Living with it
36
Weight (lbs)
- Noise Level (db)Not Specified
- UPSYes (15ms)
- App ControlYes
- Warranty (Years)5
Compare it with
DELTA 3 1500 vs
leads on 2 · trails on 2
| Spec | DELTA 3 1500 | DELTA 3 Classic | Gap |
|---|---|---|---|
| Usual price | $599 | $499 ● | +$100 |
| Capacity (Wh) | 1536 ● | 1024 | +512 |
| Output (W) | 1800 | 1800 | 0 |
| Surge (W) | 3600W | 3600W | 0 |
| Rated cycles | 3000 | 3000 | 0 |
| Solar input (W) | 500 | 500 | 0 |
| Weight (lb) | 36 | 26.7 ● | +9.3 |
| Noise (dB) | Not Specified | 30 | |
| AC outlets | 6 ● | 3 | +3 |
| USB-C ports | 2 | 2 | 0 |
| Warranty (yr) | 5 | 5 | 0 |
| Chemistry | LiFePO4 | LiFePO4 | |
| UPS | Yes (15ms) | 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.
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.
$0.39
per Wh
at $599
$0.13
per lifetime kWh
4,608 kWh over 3,000 cycles
8.2 yr
if cycled daily
29 yr at weekends only
5 yr
warranty
$120 per covered year
09 · From the matchups
Questions people ask
Is the EcoFlow DELTA 3 1500 discontinued?
Yes. EcoFlow has folded it out of the range, its product page forwards to the base DELTA 3, and the one listing left is a sold-out solar bundle. Nothing EcoFlow currently sells sits at the 1500's 1,536Wh. The DELTA 3 Max is the nearest live unit to what it covered.
What should I buy instead of the DELTA 3 1500?
There are two directions, because the size in the middle is gone. If your loads fit inside 1,024Wh, the DELTA 3 Classic on this page runs the same 1,800W inverter and the same 3,600W surge the 1500 did, in a body 9.3 lbs lighter. If they don't, the DELTA 3 Max is the step up and the unit EcoFlow records as the 1500's successor.
Should I buy leftover or refurbished DELTA 3 1500 stock?
Go in with your eyes open. The specs are real and still good: 1,536Wh, an 1,800W inverter, 3,600W of surge and a 3,000-cycle pack. But the independent record on this exact model is thin and mostly secondhand [A0], and the single forum thread that discusses it carried a relayed account of three units failing inside about eight months [A1] alongside a general sense that the DELTA 3 line drew more failure reports than the DELTA 2 [A2]. Confirm who honours the five-year warranty before you buy, since that's the part a discontinued unit most often loses.
Is the Jackery Explorer 1500 v2 worth $100 more than the EcoFlow DELTA 3 1500?
If you'll keep it, yes. Same 1,536Wh, but the Jackery is rated for 4,000 cycles against 3,000, which makes it cheaper to own over its life ($0.11 per lifetime kWh against $0.13) and it's 4 lbs lighter to carry [B1]. The DELTA 3 wins on sticker price, 500W solar input, and expansion, so a solar-first or budget-first buyer can still justify it.
DELTA 3 1500 or DELTA 3 Plus — which should I buy?
The 1500 for most people: it holds 512Wh more, costs $100 less, and is cheaper per lifetime kilowatt-hour. Choose the Plus if you recharge from solar — its 1,000W input against the 1500's 500W refills far faster off-grid — or if the lighter 27 lb build and quicker UPS outweigh capacity for you.
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.