EcoFlow · Power station · DELTA 3 Classic

DELTA 3 Classic

Name: EcoFlow DELTA 3 Classic
Brand: EcoFlow
Price: 499 USD

4 Ways to Charge, Ready in Just 45 Mins: Charges from 0–80% in just 45 minutes with AC charging. .

1,800W rated1,024WhRechargeable batteryCheck availability

Check EcoFlow price Official listed price $499.00

EcoFlow DELTA 3 Classic Portable Power Station (1024Wh) — Product image · EcoFlow

Product decision summary

Researched by Andrew Petla · reviewed under the FMG editorial standard · Sep 15, 2026

Trace the evidence · not a hands-on review

Bottom line

Strong in its class for home essentials & rv and camping.

Best for: Home essentials & RV and camping

Running output

1,800W

Fuel / power

Rechargeable battery

Weight

26.7 lb

Strongest reasons

4 Ways to Charge, Ready in Just 45 Mins: Charges from 0–80% in just 45 minutes with AC charging. .
Peak output is higher than 75% of its class.
Running output is higher than 68% of its class.

Know before buying

Its compact output is best for prioritized essentials, not several large home loads running at once.

Scores at a glance

Class score

Starter fit

Strong in its class among 101 compact power stations.

Good fit

See score details Personalize in 60 sec

Best current buying route

$499

Observed price at EcoFlow

The only verified seller destination. Its listed price is known, but shipping and delivered cost still need confirmation. Confirm price, stock, shipping, and the exact model on the seller’s site.

Check price & availability

Affiliate links may earn us a commission at no added cost to you. Disclosure

Follow the manual’s charging, temperature, storage, and battery-safety requirements.

Price intelligence Evidence ledger Accessories & manuals

Key specifications

The numbers that drive the decision.

Published values stay labeled, and every usable metric includes class context. Missing data is shown instead of estimated.

Open complete specifications

Specification	This model	Class median	Context
Running output	1,800WHigher than 68% of its class	1,350W	Higher than 68% of its class
Peak / starting output	3,600WHigher than 75% of its class	2,400W	Higher than 75% of its class
Stored energy	1,024WhHigher than 58% of its class	1,008Wh	Higher than 58% of its class
Product weight	26.7 lbLighter than 45% of its class	25.3 lb	Lighter than 45% of its class
Published sound level	Not publishedNo class comparison available	Not enough class data	No class comparison available
Fuel / power source	Rechargeable batteryPower station	Not applicable	Power station
Best current price	$499Observed price at EcoFlow	Prices change	Observed price at EcoFlow

Class comparisons use 101 compact power stations. Runtime figures can use different loads, fuels, or test conditions; confirm the model manual before planning fuel or battery duration.

Product gallery & complete specifications Official imagery, full spec tables, use cases, and source linksView details

Infographic gallery

Output, stored energy, charging, and portability.

Scroll sideways to explore →

01 · Usable output

1,800W rated output

Battery1,800W / 3,600W

The comparison uses EcoFlow’s published rated and peak, surge, or maximum output figures.

02 · Energy & runtime

Listed capacity

1,024Wh

Published runtime guidance

Runtime depends on stored capacity and connected load

03 · Size & construction

12.1kg+0.3kg

Listed weight

398mm×200mm×283mm

Dimensions

Battery or engine: LFP(LiFePO4) battery system
Warranty: 5-Year Warranty. *Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration

04 · Charging & continuity

Charging or integration

AC Input (Charge Only): 100-120V~15A 50/60Hz 1400W Max; Maximum PV Input Power(W): 500W

Backup transfer

10ms

Noise

Quiet battery operation; fan noise varies by load

Official product gallery

Product views and factory feature graphics.

The current official image set for DELTA 3 Classic includes product views, connection diagrams, feature explanations, and compatible system configurations where EcoFlow publishes them.

EcoFlow D3C DELTA 3 Classic (1024Wh) - Grey EcoFlow DELTA 3 Classic Portable Power Station (1024Wh) — Published by EcoFlow · image 1 of 13

DELTA 3 Classic official EcoFlow image 1 — Published by EcoFlow · image 2 of 13

DELTA 3 Classic official EcoFlow image 3 — Published by EcoFlow · image 3 of 13

DELTA 3 Classic official EcoFlow image 4 — Published by EcoFlow · image 4 of 13

DELTA 3 Classic official EcoFlow image 5 — Published by EcoFlow · image 5 of 13

DELTA 3 Classic official EcoFlow image 6 — Published by EcoFlow · image 6 of 13

DELTA 3 Classic official EcoFlow image 7 — Published by EcoFlow · image 7 of 13

DELTA 3 Classic official EcoFlow image 8 — Published by EcoFlow · image 8 of 13

DELTA 3 Classic official EcoFlow image 9 — Published by EcoFlow · image 9 of 13

DELTA 3 Classic official EcoFlow image 10 — Published by EcoFlow · image 10 of 13

DELTA 3 Classic official EcoFlow image 11 — Published by EcoFlow · image 11 of 13

DELTA 3 Classic official EcoFlow image 12 — Published by EcoFlow · image 12 of 13

DELTA 3 Classic official EcoFlow image 13 — Published by EcoFlow · image 13 of 13

Complete specifications

The complete factory data available for comparison.

These pages retain EcoFlow's model-specific output, charging, battery, port, continuity, dimensions, environmental, engine, fuel, app-control, and warranty fields where published.

Follow charging, storage, and installation guidance. Whole-home connections and transfer equipment should be installed according to EcoFlow instructions and applicable electrical codes.

Comparison summary

Battery output: 1,800W rated / 3,600W peak or maximum
Stored energy: 1,024Wh
Energy source: Rechargeable battery
Dimensions: 398mm×200mm×283mm
Listed weight: 12.1kg+0.3kg
Price and availability: $499.00 official listed price; check current availability

Factory output & connection specifications

Rated Capacity: 1024Wh 51.2V 20Ah
AC Output: 120V~60Hz 1800W total
USB-A Output: USB-A: 5V=3A,9V=2A,12V=1.5A,18W Max
USB-C Output: USB-C1:5/9/12/15V=3A, 20V=5A, 100W Max. USB-C2:5/9V=3A, 15V=2A,30W Max
AC Input (Charge Only): 100-120V~15A 50/60Hz 1400W Max
Maximum PV Input Power(W): 500W

Factory charging & battery specifications

Cell Chemistry: LFP(LiFePO4)
Charge Temperature: 0°C-45°C(32°F-113°F)
Discharge Temperature: -10 to 45°C(14°F-113°F)

Factory dimensions & operating specifications

Net Weight: 12.1kg+0.3kg
Dimensions (HWD): 398mm×200mm×283mm
Optimal operating temperature: 20°C to 30°C (68°F to 86°F)
Storage Temperature: -10 to 45°C(14°F-113°F)

Factory ownership, control & protection specifications

Warranty: 5-Year Warranty. *Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration
UPS: 10ms

Additional factory specifications

X-Boost: 2600W
Communication Method: Wi-Fi & Bluetooth

Official feature details

System capability

1. 4 Ways to Charge, Ready in Just 45 Mins: Charges from 0–80% in just 45 minutes with AC charging

Power and expansion

2. 1800W Powerful Output: 3600W surge output

Charging flexibility

3. 10ms Auto-Switch: Keep critical devices like NAS systems and servers running smoothly

Battery and durability

4. 30dB Whisper-Quiet Operation: Ultra-low noise ≤30dB at 600W

Controls and continuity

5. Long-Lasting, Durable, and Reliable: Equipped with automotive-grade full-tab LFP cells, offering 10 years of reliable power, 24/7 protection BMS, and EV-grade CTC structure that protects against overnight condensation and off-road bumps during transport

Portability detail

6. Lightweight, Compact, Portable: Fits seamlessly into any setting, from your home to the great outdoors

Compatibility note

8. Up to 5-Year Warranty: Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration

Best-fit uses

Home essentials
RV and camping
Power tools and appliances
Short outages

Standout features

1,800W rated output
3,600W peak or surge output
1,024Wh listed capacity
LFP(LiFePO4)

Match capacity and output to your actual loads.

Use the independent calculator before choosing a battery system or generator.

Check my power plan

Sources: EcoFlow DELTA 3 Classic EcoFlow productsVerified September 15, 2026

Price & Availability

Compare the whole buying route.

The lowest sticker price is not always the best offer. We rank exact-model seller pages using price, stock, shipping, freshness, returns, and warranty details—then show what is still unknown.

Price and delivered cost

Shipping is included only when the seller publishes a usable amount.

Stock and freshness

Current, low-stock, preorder, and stale records are scored differently.

Purchase protections

Published return and warranty terms improve evidence confidence.

Affiliate-neutral ranking

Commission status is recorded but never adds ranking points.

Watch this model

Save it to your shortlist to retain the current price snapshot and turn price and safety watches on or off.

Best current buying route

EcoFlow DELTA 3 Classic

Review soon

Observed price

$499

at EcoFlow · Verify stock

Verify offer

Seller options

1 with price

Offer rank

57/100

Relative to listed sellers

Data confidence

55%

4 open fields

Delivered totals

0/1

Shipping included

The only verified seller destination. Its listed price is known, but shipping and delivered cost still need confirmation.

Seller data checked Sep 15, 2026.

Shipping not yet verified.

Open fields: confirmed stock, delivered cost, return window, warranty term.

Prices, local stock, shipping, taxes, installation, and seller terms can change. Confirm the exact model and final checkout total before buying. Affiliate disclosure.

Seller comparison

Every verified exact-model destination.

Browse all priced models

One exact-model seller destination is currently verified. We show the unknown fields so a single listing is never presented as a broad market comparison.

Seller

Price

Stock & shipping

Buyer protection

Confidence

Action

EcoFlow

Best overallLowest listed

$499

Final total at checkout

Verify stock

Shipping not yet verified

Returns not verified

Warranty not verified

55% complete

Checked Sep 15, 2026

Verify seller

EcoFlow

Best overallLowest listed

Review soon

$499

Final total at checkout

Availability: Verify stock
Shipping: Shipping not yet verified
Returns: Not verified
Warranty: Not verified

Verify seller

55% data confidence · checked Sep 15, 2026

Price history

A durable record, starting with verified snapshots.

We preserve each dated seller observation instead of replacing the old number. Trends use the lowest verified listed price on each observation date—not an estimated market price.

EcoFlow

$499 · Verify stock

Verify offer

Ownership

What living with it looks like.

Ownership is mostly about charge readiness, cable compatibility, storage conditions, and preserving battery health.

Ownership rule

Use the exact EcoFlow DELTA 3 Classic manual for maintenance intervals, fluids, storage limits, and warranty requirements. Similar models are not interchangeable.

Open owner’s manual Manufacturer support

Published warranty

5-Year Warranty. *Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration

Coverage can vary by use, seller, and region. Confirm eligibility and exclusions before purchase.

Service information

2 official resources

An owner or operator manual is linked below for exact service intervals.

Battery care

Low mechanical upkeep

Plan for charge-state, cable, ventilation, firmware, and storage-temperature checks.

Handling & storage

26.7 lb · Rechargeable battery

Store dry and within the manufacturer’s published temperature and charge-state limits.

Practical care plan

From delivery to long-term readiness

1
Day one
Register and record the exact unit
Save the receipt, serial number, seller, warranty terms, and all included cables before packaging is discarded.
2
First setup
Confirm charging limits and update status
Use the official manual to verify every AC, vehicle, and solar input limit. Install firmware updates only through the manufacturer’s supported process.
3
Before a trip or outage
Run a readiness check
Inspect ports and cables, confirm state of charge, test the intended loads, and make sure the recharge plan still matches the forecasted need.
4
During storage
Protect long-term battery health
Follow the model manual for storage temperature, ventilation, recharge cadence, and recommended state of charge. Do not use generic battery advice in place of its limits.

Before you buy

Five ownership questions to settle first

Confirm that 5-Year Warranty. *Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration applies to your seller, region, and intended use.
Open the official manual for DELTA 3 Classic and review setup, service intervals, warnings, and storage requirements.
Verify access to EcoFlow parts, authorized service, and a practical return path in your area.
Confirm every charging cable, solar input limit, expansion-battery match, and indoor-use restriction.
Confirm the unit, fuel or charging gear, and essential cords fit the intended storage and transport space.

Manuals and compatible accessories Compare seller protections

Evidence

See the proof behind the conclusion.

We separate sourced facts, reproducible calculations, editorial judgments, and missing evidence. That makes every important claim easier to inspect—and harder to overstate.

Published-data coverage

100%documented

8 of 8 relevant evidence fields are documented for this model.

Source-backed editorial analysis—not a hands-on or laboratory test.

Read our evidence standard Explore original market research

Source record

3 traceable sources

Last reviewed Sep 15, 2026

Hands-on testing

Checking ledger…

No manufacturer data is presented as an independent test

Verified owners

Checking reports…

Percentages stay hidden until the sample qualifies

CPSC screening

No model-text match

39 generator recall records screened

100%

Documented fields

Traceable sources

Reproducible calculations

Open evidence gaps

Original calculation

Published surge reserve

1,800W

3,600W peak − 1,800W running

100% above rated running output. This is arithmetic headroom, not a promise that every motor load will start.

Original calculation

Rated power density

67.42 running W/lb

1,800W ÷ 26.7 lb

A catalog-derived portability ratio. It does not account for handles, wheels, shape, or how the weight feels in use.

Original calculation

Listed dollars per Wh

$0.49/Wh

$499 ÷ 1,024Wh

A point-in-time catalog value ratio. It excludes tax, shipping, accessories, fuel, service, and battery expansion costs.

Original calculation

Strongest class-relative spec

75th percentile

Peak output: 3,600W ranked within 101 compact power stations

Higher than 75% of its class

Claim-by-claim evidence ledger

Evidence type	Claim	Basis	Trace
Published factSource-backed	1,800W running and 3,600W peak output are recorded for this model.	Model-specific output fields in the catalog.	Official model source
Published factSource-backed	1,024Wh of published storage capacity is recorded.	Model-specific battery capacity in the catalog.	Official model source
Published factSource-backed	Rechargeable battery power and 26.7 lb product weight are recorded.	Published configuration and dimensional data.	Official model source
Original calculationReproducible	Published surge reserve: 1,800W.	3,600W peak − 1,800W running	Calculation standard
Original calculationReproducible	Rated power density: 67.42 running W/lb.	1,800W ÷ 26.7 lb	Calculation standard
Original calculationReproducible	Listed dollars per Wh: $0.49/Wh.	$499 ÷ 1,024Wh	Calculation standard
Editorial judgmentEditorial	Strong in its class for home essentials & rv and camping.	Class score 66/100, declared best use, comparative specifications, and explicit buying cautions.	Inspect the score
Editorial judgmentEditorial	Its compact output is best for prioritized essentials, not several large home loads running at once.	Editorial risk check based on product category, weight, output, price availability, and missing fields.	Judgment standard

Source ledger

Official model source Primary specifications, product identity, and published configuration.Manuals and document lookup Search EcoFlow support materials using the complete model, item, or serial number.CPSC recall search Model-text screening against 39 generator recall records; checked 2026-09-16T02:08:27.514Z.

What this evidence cannot prove

No Find My Generator hands-on test, instrumented load test, teardown, or long-term ownership trial is claimed for this page.
Manufacturer specifications may use different fuels, loads, test distances, temperatures, or operating modes. Cross-brand comparisons inherit those differences.
The listed price is a dated snapshot and may not equal the current delivered price.

Editorial analysis for EcoFlow DELTA 3 Classic. Source record last verified Sep 15, 2026. Corrections can be submitted through the contact page with a model-specific source.

Ownership resources

Accessories, manuals, and documents.

Start with the exact EcoFlow DELTA 3 Classic model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.

Compatible accessories

Match by model and connection.

Verify exact fit

Solar charging equipment

Shop EcoFlow solar panels, charging leads, and adapters intended for its portable-power ecosystem.

Match the connector, solar input voltage, current limit, and maximum input published for DELTA 3 Classic.

View official accessory options

Verify exact fit

Charging cables and adapters

Find vehicle, wall, USB, and model-specific charging accessories from EcoFlow.

Confirm the exact input port and electrical limits for DELTA 3 Classic before ordering.

View official accessory options

Verify exact fit

Case, cart, or protective cover

Protective and mobility accessories can make storage and transport easier.

Check the listed dimensions and model fit for DELTA 3 Classic; do not block cooling inlets or exhaust fans during operation.

View official accessory options

Manuals & PDFs

Official product materials.

Manuals and document lookupSupport pageSearch EcoFlow support materials using the complete model, item, or serial number.Official product pageProduct pageCurrent manufacturer overview, notices, specifications, downloads, and support links.

Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.

Deeper analysis

Open the details you need

The key decision is above. These supporting scorecards, owner signals, and evidence notes stay out of the way until you want to inspect them.

Fit and score detailsSee the class benchmarks and personalize the fit score for your needs.

Find My Generator score

66/ 100

Strong in its class

Compared with 101 compact power stations in the current catalog.

Power72

Running and peak output versus the class

Endurance58

Stored energy versus the class

Portability45

Lower weight scores higher

Fuel flexibility85

Rechargeable, indoor-safe operation

Value76

Output or stored energy per listed dollar

Class comparison

See what each spec really means.

A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.

SpecificationThis modelClass medianClass standing

Running output

Higher than 68% of its class

This model · 1,800W

Median · 1,350W

Higher than 68% of its class

Peak output

Higher than 75% of its class

This model · 3,600W

Median · 2,400W

Higher than 75% of its class

Stored energy

Higher than 58% of its class

This model · 1,024Wh

Median · 1,008Wh

Higher than 58% of its class

Product weight

Lighter than 45% of its class

This model · 26.7 lb

Median · 25.3 lb

Lighter than 45% of its class

How the score works: Scores use published specs and are relative to comparable products in this catalog. Missing specs are excluded and remaining weights are normalized. Runtime is the longest manufacturer-published figure and may use a different load or fuel than another model.

Size a generator for your own appliances

Starter Fit Score

78/ 100

Good fit

For a 3,000W target and a $1,500 budget.

Below your running-watt target

Why it scored this way

A score you can inspect and change.

This personal score is separate from the model’s class score. It measures fit against your priorities and gives neutral partial credit when price or noise data is missing.

Power fit

17.7/35

1,200W below your running target.

Budget fit

20/20

$499 is within your budget.

Fuel fit

15/15

Rechargeable battery works with your flexible fuel preference.

Portability

10/10

26.7 lb against your medium portability priority.

Noise fit

10/10

Battery operation strongly matches your quietness preference.

Use-case fit

5.5/10

Home-backup fit rewards adequate output and fuel flexibility.

Tune my profile

Testing, reviews and evidenceCheck hands-on testing status, owner reliability signals, sources, and data confidence.

Checking the hands-on test ledger…

Testing protocol

The methods behind every result.

This category-specific protocol defines the questions, equipment, conditions, outputs, and safety gates required for this exact model. Published specifications stay visibly separate from hands-on measurements.

Open the hands-on test ledger Read the full test protocol Download measurement worksheet

Manufacturer-published baselines

Rated running output

1,800W

Published

Peak / starting output

3,600W

Published

Published storage capacity

1,024Wh

Published

Product weight

26.7 lb

Published

Published sound level

Pending

If backup transfer is advertised, what interruption does a representative load experience?

Only when the manufacturer advertises the feature, use an isolated, instrumented load and suitable waveform capture to record transfer interruption and output behavior during repeated loss-and-return events.

Transfer timeWaveform eventLoad typePass-through limits

Controlled conditions

Record the exact model, serial number, firmware, sample source, and test date before any measurement.
Log ambient temperature, humidity, elevation, wind, surface, and background sound for every test block.
Record instrument model, range, accuracy, and most recent calibration or verification date.
Repeat timing, starting, and sound measurements three times when conditions allow; publish every valid run.
Keep original notes, load logs, meter exports, photos, and any excluded-run explanation with the result.

Required equipment class

Rated programmable or resistive AC load
Bidirectional watt-hour and power analyzer
Calibrated sound-level meter
Temperature logger or verified non-contact thermometer
Waveform capture equipment when transfer-time claims are tested

Safety gate

Use a noncombustible, ventilated test area with battery-rated emergency procedures; stop for swelling, odor, smoke, leakage, abnormal heat, or impact damage.

Testing is for qualified personnel using correctly rated load equipment and the manufacturer’s required grounding, bonding, clearance, and protective-device instructions.

Never connect a generator directly to building wiring or bypass overload, temperature, battery, GFCI, or carbon-monoxide shutdown protection.

Stop a run for unstable voltage or frequency, overheating, fuel or electrolyte leakage, abnormal sound, damaged wiring, or any manufacturer fault indication.

Badge rule: this product receives no “FMG Tested” label or score benefit until a real unit, instruments, conditions, valid runs, raw records, and limitations are documented under the public protocol.

Verified owner reliability

What happens after the honeymoon period?

Long-term reports from confirmed owners show starting, maintenance, failure, support, and recommendation outcomes for the EcoFlow DELTA 3 Classic.

See how ownership is verified

Verified owners only

Be the first confirmed owner to report back.

Checking reports…

Reliability percentages stay hidden until at least 5 ownership-verified reports are published for this exact model — 5 more needed.

Ownership checked

Purchase or registration evidence is reviewed privately.

Time in service

Reports separate new ownership from 12+ month experience.

Failures documented

Repairs and maintenance are captured, not buried in a star.

Reports stay private while ownership and model details are checked. Contact information is never shown publicly.

Data trust & safety

Fresh specifications. Visible recall checks.

We show when this record was verified, where its specifications came from, and whether its model number appears in the official CPSC generator-recall dataset.

Review soon

Specification freshness

Last verified: Sep 15, 2026
Review target: Oct 15, 2026
Primary source: Manufacturer / official listing

Prices can change faster than technical specifications. Always confirm the current price, exact model number, and manual before purchase.

CPSC model screening

No model-number match found

39 records checked

The EcoFlow DELTA 3 Classic model text did not match the generator recall records in our current CPSC snapshot. This is a screening result, not a guarantee or safety certification. Recalls can be serial-number specific, newly published, or use a different product description.

Search CPSC directly Dataset checked Sep 16, 2026

Research owner

Andrew Petla

Founder & lead researcher

Editorial sign-off

Find My Generator Editorial Review

Accountable editor: Andrew Petla

Review scope: exact model identity, published specifications, calculation inputs, source quality, safety language, and affiliate independence. This is an internal editorial review, not third-party engineering, electrical, or safety certification. Hands-on testing is claimed only when a complete test record is published.Request a correction.

Read the full data methodology

DELTA 3 Classic

Strong in its class for home essentials & rv and camping.

The numbers that drive the decision.

Output, stored energy, charging, and portability.

Product views and factory feature graphics.

The complete factory data available for comparison.

Comparison summary

Factory output & connection specifications

Factory charging & battery specifications

Factory dimensions & operating specifications

Factory ownership, control & protection specifications

Additional factory specifications

Official feature details

Match capacity and output to your actual loads.

Compare the whole buying route.

EcoFlow DELTA 3 Classic

Every verified exact-model destination.

A durable record, starting with verified snapshots.

What living with it looks like.

From delivery to long-term readiness

Register and record the exact unit

Confirm charging limits and update status

Run a readiness check

Protect long-term battery health

Five ownership questions to settle first

See the proof behind the conclusion.

Accessories, manuals, and documents.

Match by model and connection.

Solar charging equipment

Charging cables and adapters

Case, cart, or protective cover

Official product materials.

Open the details you need

See what each spec really means.

A score you can inspect and change.

Power fit

Budget fit

Fuel fit

Portability

Noise fit

Use-case fit

The methods behind every result.

Questions the measurements must answer.

Usable AC energy

Continuous output & overload behavior

AC recharge time & input energy

Fan sound & thermal profile

Transfer / UPS behavior

What happens after the honeymoon period?

Be the first confirmed owner to report back.

Ownership checked

Time in service

Failures documented

Fresh specifications. Visible recall checks.

Specification freshness

No model-number match found

Keep the decision moving.

Compare side by side

Save and watch

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