Product entity · Current
EcoFlow DELTA 3 Classic
1,024 Wh LiFePO4 power station with 1,800 W continuous AC (3,600 W surge) across six outlets, 1,400 W AC charging (0 to 80% in about 45 minutes), 500 W solar input and a sub-10 ms UPS. Not expandable.
Sourcing note:Some specifications on this page come from the product's Amazon listing and some from the manufacturer. Each field's source is marked in the provenance table below, and listing-sourced fields carry lower confidence. Where the two disagree, the manufacturer value is the one shown.
Machine summary · product · ecoflow-delta-3-classic
- brand
- EcoFlow
- model_name
- DELTA 3 Classic
- release_status
- current
- market_region
- US
- battery_capacity_wh
- 1024
- continuous_ac_output_w
- 1800
- battery_chemistry
- lifepo4
- weight_kg
- 12.1
- confidence_level
- medium
- source_last_checked
- 2026-10-30
- source_tier
- mixed
- official_product_url
- https://www.ecoflow.com/us/delta-3-classic-portable-power-station
- json_export
- /products/ecoflow-delta-3-classic.json
Overview
The DELTA 3 Classic (model EF-DL3-C on Amazon) is the simplified member of EcoFlow's DELTA 3 family: the same 1,024 Wh LFP capacity and 1,800 W pure sine output as the DELTA 3, but with fewer low-voltage ports (one USB-A and two USB-C, one of them 100 W), a 1,400 W AC charge rate rather than 1,500 W, and no extra-battery support. EcoFlow quotes 0 to 80% in about 45 minutes on AC and states a sub-10 ms UPS switchover. The Amazon listing notes it is not compatible with the DELTA 2 or DELTA 3 series Smart Extra Batteries.
Variant note: DELTA 3 Classic (EF-DL3-C), standalone unit. Distinct from the DELTA 3 (EF-DL-H10-3, indexed separately, expandable, 1,500 W charging), DELTA 3 Plus, DELTA 3 1500 and the Classic solar-generator bundles.
Data note: Core specs from EcoFlow's US product page, corroborated by the Amazon listing. Amazon lists 26.7 lb (12.1 kg) and 7.9 x 11.1 x 15.7 in, consistent with EcoFlow's 12.1 kg and 398 x 200 x 283 mm. Amazon's 'Total Power Outlets: 6' matches EcoFlow's six AC outlets. X-Boost (up to 2,600 W) is not counted as continuous. No cycle rating is published; EcoFlow gives only a simulated 10-year lifespan estimate, so cycle fields are null.
Specifications
Values are normalized to the category attribute schema; each core value's original claim and source are in the provenance table below. Fields not officially documented are omitted rather than estimated.
| Attribute | Value |
|---|---|
| Battery capacity | 1,024 Wh |
| Battery chemistry | LiFePO4 (LFP) |
| Expandable battery support | No |
| Attribute | Value |
|---|---|
| Continuous AC output | 1,800 W |
| Surge output | 3,600 W |
| AC outlets | 6 |
| Waveform | Pure sine wave |
| Attribute | Value |
|---|---|
| Max AC charging input | 1,400 W |
| Partial recharge claim (marketing) | AC charging reaches 80% in about 45 minutes (EcoFlow lab data). |
| Max solar input | 500 W |
| Car charging | Supported |
| Pass-through charging | Not officially documented |
| Attribute | Value |
|---|---|
| Output ports | 6 × AC outlets, 1 × USB-A (max 18 W/port), 2 × USB-C (max 100 W/port) |
| Max single-port USB-C output | 100 W |
| Attribute | Value |
|---|---|
| Weight (unit) | 12.1 kg (26.7 lb) |
| Dimensions (L × W × H) | 398 × 200 × 283 mm |
| Attribute | Value |
|---|---|
| App control | Yes |
| UPS / EPS | UPS |
| Warranty | 5 years |
| Release status | Current |
| Market region | US |
Use cases
- Home backup for essentials under 1,800 W with a sub-10 ms UPS
- Fast-turnaround charging: about 45 minutes to 80% on AC
- Camping and RV use where a fixed 1 kWh is enough
Strengths and weaknesses
Strengths
- Same 1,800 W / 3,600 W surge output as the DELTA 3 in the same 1,024 Wh LFP size
- Sub-10 ms UPS switchover stated by EcoFlow
- 500 W solar input
- App control with scheduled charging
Weaknesses
- Not expandable: no extra-battery support at all
- Fewer low-voltage ports than the DELTA 3 (one USB-A, no car outlet or DC5521 listed)
- EcoFlow publishes no cycle-life figure for it, only a 10-year lifespan estimate
- No full 0 to 100% AC recharge time published, only 0 to 80%
Use-case fit
Recommended for: CPAP Backup Portable Power (#3)
Also eligible for: RV Portable Power · Apartment Outage Backup · Home Office Backup · Vanlife Portable Power
Fit is computed from this product's normalized fields using each use-case page's published hard filters and ranking rules — see any linked page for the exact logic.
Where to buy
Affiliate disclosure: some links below are affiliate links. If you buy through one we may earn a commission at no extra cost to you. Commissions never affect how products are ranked or the specifications shown, and each specification's source is listed on this page. As an Amazon Associate I earn from qualifying purchases. Full disclosure.
| Merchant | Price | Checked | Availability | Link |
|---|---|---|---|---|
| EcoFlowprimaryManufacturer direct | Not tracked | — | — | View at EcoFlow |
| AmazonaffiliateMarketplace | Not tracked | — | — | View at Amazon — Model Name DELTA 3 Classic, Model Number EF-DL3-C, 1024 Wh, 1800 W. Distinct from the DELTA 3 (B0DCBYMC9D) and the Classic solar bundles. |
Sources and provenance
Every core field below carries the exact claim text it was normalized from, its source (the Amazon listing or the manufacturer), and the date it was checked. See the methodology for the full source hierarchy.
| Field | Normalized value | Raw claim | Source | Confidence |
|---|---|---|---|---|
batteryCapacityWh | 1024 | Capacity: 1024Wh | Official product page — Read from the live EcoFlow US product page on 2026-10-30; claim text is the page statement as read, lightly condensed. | high |
continuousAcOutputW | 1800 | 1800W rated output, 3600W surge, pure sine wave | Official product page — Read from the live EcoFlow US product page on 2026-10-30; claim text is the page statement as read, lightly condensed. | high |
surgeAcOutputW | 3600 | 3600W surge | Official product page — Amazon bullet agrees: '1800W output (3600W surge)'. | high |
numberOfAcOutlets | 6 | AC outlets: 6 | Official product page — Amazon 'Total Power Outlets: 6' agrees. | high |
batteryChemistry | lifepo4 | LFP battery, automotive-grade full-tab cells | Official product page — Amazon: 'Lifepo4 (Battery)'. | high |
acInputW | 1400 | AC charging input: 1400W | Official product page — Read from the live EcoFlow US product page on 2026-10-30; claim text is the page statement as read, lightly condensed. | medium |
solarInputW | 500 | Solar input: 500W max | Official product page — Amazon bullet: 'Recharge in just 2.5 hours with a 500W solar panel'. | high |
weightKg | 12.1 | Net weight: 12.1 ± 0.3 kg | Official product page — Amazon Item Weight 26.7 pounds (12.1 kg) agrees. | high |
dimensionsMm | {"l":398,"w":200,"h":283} | Dimensions: 398 x 200 x 283 mm | Official product page | high |
outputWaveform | pure_sine_wave | pure sine wave | Official product page | high |
upsEpsMode | ups | UPS switchover: under 10 ms | Official product page — Amazon: '<10ms UPS ... automatically switches to battery in under 10ms'. | medium |
expandableBatterySupport | false | Not expandable | Official product page — Amazon: 'DELTA 3 Classic is not compatible with DELTA 2 Smart Extra Battery and Delta 3 Series Smart Extra Battery.' | medium |
warrantyYears | 5 | Warranty Description: 5 Year Manufacturer | Retailer listing — EcoFlow's page links to its warranty policy rather than stating a term. | medium |
usbCMaxW | 100 | USB-C: 2 ports, one 100W max, one 30W max | Official product page | high |