EcoFlow · DELTA series
EcoFlow DELTA 3
The DELTA 3 is this year’s iPhone: the DELTA 2’s kilowatt-hour and 27 pounds, a thousand more cycles, a quieter fan, what a year buys. It clears a CPAP night and a tailgate and wins 28 of 48 head-to-heads, eleven of sixteen in the family. Owners run about the norm; one refills it in an hour of strong sun.
1 kWh · 1,800 W · 27 lb · 4,000 cycles · 48 head-to-heads
3,124
Power Score · Appliance Class
- 1 kWh
- capacity
- 1,800 W
- output
- 27 lb
- weight
- 4,000
- rated cycles
Should you buy it right now?
Wait, or check the store first: $629 is 15% over its usual $549.
Real-world jobs
2 of 6
Falls short on Weekend Camping, 8-Hour Blackout, Remote Workday and Van Life Daily
Head-to-head record
28–20
48 adjudicated matchups
Verdicts by Ian Schneider and the Test Desk·Figures computed 2026-09-07
01 · Six real-world jobs
What the DELTA 3 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 · 241% of the tank · 1,230Wh short
Peak 75W: starts and holds
8-Hour Blackout
Falls short8 hours · Keep the essentials running through a night without power
1,645Wh needed · 189% of the tank · 775Wh short
Peak 150W: starts and holds
CPAP Overnight
Clears it8 hours · Sleep therapy without interruption — the #1 medical use case
320Wh needed · 37% of the tank · 550Wh spare
Peak 40W: starts and holds
Remote Workday
Falls short8 hours · Full work day off-grid without power anxiety
910Wh needed · 105% of the tank · 40Wh short
Peak 60W: starts and holds
Tailgate Party
Clears it4 hours · Game day power for the crew
670Wh needed · 77% of the tank · 200Wh 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 · 538% of the tank · 3,815Wh short
Peak 150W: starts and holds
02 · Head-to-head record
28 wins in 48 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
28–20
- vs EcoFlow11–5
- vs BLUETTI6–5
- vs Jackery3–6
- vs Anker4–3
- vs DJI2–1
- vs Goal Zero2–0
losesDELTA 3 vs DJI Power 2000
415 searches reached this matchup
winsDELTA 3 vs EcoFlow RIVER 3 MAX
380 searches reached this matchup
losesDELTA 3 vs EcoFlow DELTA 3 Classic
315 searches reached this matchup
winsDELTA 3 vs EcoFlow RIVER 3 PLUS
304 searches reached this matchup
winsDELTA 3 vs EcoFlow RIVER 3 MAX PLUS
190 searches reached this matchup
losesDELTA 3 vs Jackery Explorer 2000 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 if…
You want the lower price and don't need to clear a full remote workday off one charge.
Decided 15 matchups · read one →
You want a disclosed, genuinely quiet noise profile for a bedside or desk unit [A1].
Decided 6 matchups · read one →
Buy it if $629 is the line. It's the lower entry price, and if the extra capacity is capacity you'd never use, paying less for less is the right call.
Decided 5 matchups · read one →
Buy the DELTA 3 if you carry your power more than you park it. Twenty-seven pounds is a one-hand lift into a trunk or up a trailhead, where the Elite is a two-person or roll-only unit.
Decided 4 matchups · read one →
A rival won when…
You want the extra 2.8 years of daily-use cycle life and are willing to pay for it.
Decided 19 matchups · read one →
Buy it if you solar-charge. Its 1,000W of input refills a day's use in a morning, twice what the DELTA 3 takes in.
Decided 6 matchups · read one →
Your loads are strictly light-duty — phone, laptop, small lights — and you'll never lean on either unit's surge ceiling.
Decided 5 matchups · read one →
You're optimizing for lifetime cost, not checkout price: $0.16 per lifetime kWh against the DELTA 3's $0.17.
Decided 3 matchups · read one →
04 · Price history
What the DELTA 3 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 · 53 days
Since August 5 · above usual on 34 of 53 days
Built from the Sep 7, 5 AM UTC read.
$549
Usual price
36% of days tracked
$549
Best we've seen
August 4
$629
Today
15% over usual
$629
Highest seen
34 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: usually $549, best $549 (Aug 4), today $629 on us.ecoflow.com. Tracked twice a day since Jul 17. https://stationarena.com/products/ecoflow-delta-3#price-history
Alerts for the DELTA 3
One email when it drops below $549, comes back in stock, or a newer model in this line appears. Nothing else.
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05 · Voices
What 34 owner reports say about the DELTA 3
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.
- 52%
- positive
- 17
- self-declared owners
- 7
- measured reports
- 23
- videos
- 52%
- EcoFlow norm
- 2024–2026
- reporting period
17 for, 16 against
tenure rarely stated
numbers, not impressions
8 channels
across 1,668 reports
2024-11-14 to 2026-08-22
Weighted read
48% positive weighted · corpus 51% · about typical
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, support3 against · 0 for
- How it performs8 against · 10 for
- How it feels to use5 against · 7 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.
- Solar input2 measured80% positive · brand 51%14
- General50% positive · brand 63%22
- Price & value1 measured75% positive · brand 58%13
- UPS switchover100% positive · brand 56%3
- Capacity & runtime2 measured33% positive · brand 81%21
- Idle drain0% positive · brand 48%2
- Durability & failures0% positive · brand 26%2
- Inverter & surge1 measured100% positive · brand 56%2
- Build quality1 measured0% positive · brand 38%2
- Weight & portability0% positive · brand 60%1
- Noise100% positive · brand 44%1
- App & firmware100% positive · brand 54%1
- Expandability0% positive · brand 65%1
- Shipping & availability0% positive · brand 9%1
- Support & warranty0% positive · brand 33%1
left: negative · right: positive
When the reports were made
What owners compare it against
What owners praise
Solar inputmeasuredowner
Charges 0-100% in 1 hour on 1,000W of solar; 800W takes only 20 minutes longer.
Jasonoid - Solar Power, Batteries, and More!· 1 likessource
Inverter & surgemeasuredowner
The same pressure washer ran on their DELTA 3 with no errors.
The Solar Lab· 1 likessource
Capacity & runtimemeasuredowner
With an extra battery (2 kWh) it ran 2 fridges, a deep freeze and internet in a 2-day outage.
Jasonoid - Solar Power, Batteries, and More!source
What owners complain about
Capacity & runtimemeasuredowner
At 30% charge it ran a 12V cool box for only 30 minutes against a claimed 12 hours at full charge.
The Solar Lab· 1 likessource
Solar inputmeasuredowner
Four 12V 100W panels in series give an overload error despite a 60V input rating.
The Solar Labsource
Build qualitymeasuredowner
AC-port surge protection is rated only 150 joules versus 1,800 on his UPS, so he chained both.
Minute Man Solarsource
Reviewer consensus
2/2 positive excerpts, 4 sources
portablepowernerd.com · ecoflow delta 3 tested: 2026 hands-on review; thesolarlab.com · outputreport.com · thesolarlab.com · researched 2026-07-08
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 Power 2000 if your real loads run anywhere near or above 900Wh at once.”
“Buy DELTA 3 unless you already know your ceiling is low.”
“Buy the DELTA 3 Classic.”
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
1024
Capacity (Wh)
- ChemistryLiFePO4
- Charging Cycles4000
- 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 Ports2
- USB-C Charging Outputs100W
Charging
500
Solar Input (W)
- Solar Input TypeXT60
Living with it
27
Weight (lbs)
- Noise Level (db)30
- UPSYes (10ms)
- App ControlYes
- Warranty (Years)5
Compare it with
DELTA 3 vs
leads on 3 · trails on 4
| Spec | DELTA 3 | Power 2000 | Gap |
|---|---|---|---|
| Usual price | $549 ● | $1,299 | $-750 |
| Capacity (Wh) | 1024 | 2048 ● | -1024 |
| Output (W) | 1800 | 3000 ● | -1200 |
| Surge (W) | 3600W | Not Specified | |
| Rated cycles | 4000 | 4000 | 0 |
| Solar input (W) | 500 | 1800 ● | -1300 |
| Weight (lb) | 27 ● | 48.5 | -21.5 |
| Noise (dB) | 30 | <30 dB | 0 |
| AC outlets | 6 ● | 4 | +2 |
| USB-C ports | 2 | 4 ● | -2 |
| 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.
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.
$0.54
per Wh
at $549
$0.13
per lifetime kWh
4,096 kWh over 4,000 cycles
11.0 yr
if cycled daily
38 yr at weekends only
5 yr
warranty
$110 per covered year
09 · From the matchups
Questions people ask
Is the DJI Power 2000 worth $750 more than the EcoFlow DELTA 3?
If your loads run anywhere near or above 900Wh at once, yes - it wins every scenario here that isn't a flat tie, and it costs less per lifetime kWh delivered ($0.16 against $0.18) once you spread the price over its rated cycle life. If your real draw is a CPAP (320Wh) or a tailgate afternoon (670Wh), the DELTA 3 already covers it and the extra $750 buys capacity you won't touch.
Can the EcoFlow DELTA 3 power a CPAP machine all night?
Yes. A CPAP overnight draws about 320Wh, only 37% of the DELTA 3's usable capacity, so it covers a full night with plenty to spare. The Power 2000 covers it too, at 18% of its own capacity, but that's more machine than the job calls for.
Which charges faster from solar, the DELTA 3 or the Power 2000?
The Power 2000, despite holding twice the energy. Its 1,800W solar ceiling against the DELTA 3's 500W means a full charge from empty takes it about 1 hour 8 minutes (2,048Wh divided by 1,800W), against roughly 2 hours for the DELTA 3 (1,024Wh divided by 500W).
How much heavier is the DJI Power 2000 than the EcoFlow DELTA 3?
21.5 lbs - the Power 2000 weighs 48.5 lbs against the DELTA 3's 27 lbs. If you're the one carrying it in and out of a trunk or up stairs regularly rather than leaving it parked, that difference is worth weighing against the extra capacity.
Will either the DELTA 3 or the Power 2000 run a full weekend of camping?
Not comfortably. A weekend camping load draws about 2,100Wh, which needs 241% of the DELTA 3's usable capacity and still 121% of the Power 2000's - both fall short. Either unit is fine for a lighter trip, but a true weekend off-grid needs a bigger station or an expansion battery, not a choice between these two.
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.