EcoFlow Delta 2vsEcoFlow DELTA 3 Classic
Head-to-head comparison of scores, specs, and features.
EcoFlow Delta 2
72.8Grade A-
Price
$449.00
AC Power
1800W
EcoFlow DELTA 3 Classic
73.3Grade A-
Price
$599.00
AC Power
1800W
EcoFlow DELTA 3 Classicwins by0.52points overall.
The Verdict
Overall take
Buy EcoFlow Delta 2 if
- Better Expandable Capacity: Yes vs No
- Better Max Extra Batteries: 1 vs 0
- Better Cost Per Wh: 0.44 vs 0.59
Buy EcoFlow DELTA 3 Classic if
- Better Ups Functionality: Yes vs EPS
- Better Ups Switch Time: 10 vs 30
- Better Ac Power Surge: 3600 vs 2700
Top 3 Key Differences
Expandable Capacity
Yesvs No
Score: 100 vs 0
Ups Functionality
EPSvs Yes
Score: 0 vs 100
Ups Switch Time
30vs 10
Score: 64.5 vs 100
Performance by Category
ChargingTie
EcoFlow Delta 2
90.7
EcoFlow DELTA 3 Classic
90.7
AC PowerEcoFlow DELTA 3 Classic wins
EcoFlow Delta 2
84.0
EcoFlow DELTA 3 Classic
89.3
ConnectivityTie
EcoFlow Delta 2
75.0
EcoFlow DELTA 3 Classic
75.0
PriceEcoFlow Delta 2 wins
EcoFlow Delta 2
100.0
EcoFlow DELTA 3 Classic
91.4
BatteryEcoFlow Delta 2 wins
EcoFlow Delta 2
70.8
EcoFlow DELTA 3 Classic
40.8
PhysicalTie
EcoFlow Delta 2
94.0
EcoFlow DELTA 3 Classic
93.8
Advanced FeaturesEcoFlow DELTA 3 Classic wins
EcoFlow Delta 2
21.5
EcoFlow DELTA 3 Classic
66.7
WarrantyTie
EcoFlow Delta 2
100.0
EcoFlow DELTA 3 Classic
100.0
Full Technical Specifications
| Feature | EcoFlow Delta 2 | EcoFlow DELTA 3 Classic |
|---|---|---|
| Charging | ||
| Ac Charge Speed | 72 | 60 |
| Charger Type | X-Stream AC fast charging (1200W); Solar XT60i; Car/DC 12V/24V 8A | AC (X-Stream 1400W max), Solar (500W max, XT60i), Car/Alternator (96W via XT60i), Smart Generator compatible |
| Fast Charging | Yes | Yes |
| Max Solar Input | 500 | 500 |
| Max Solar Panels | 2 | 2 |
| Pass Through Charging | Yes | Yes |
| Smart Charging | Yes | Yes |
| Solar Connector Type | XT60i | XT60i |
| Solar Panel Compatibility | EcoFlow solar panels; 3rd-party panels 11-60V 15A max via XT60i adapter | EcoFlow 160W Portable Solar Panel, EcoFlow 220W Portable Solar Panel; any MPPT panel with XT60i connector, 11-60V input, max 15A |
| AC Power | ||
| Ac Output Amps | 13A max (bypass mode, US/CA) | 15A max |
| Ac Power Continuous | 1800 | 1800 |
| Ac Power Surge | 2700 | 3600 |
| Ac Wave Quality | Pure Sine Wave | Pure Sine Wave |
| Connectivity | ||
| App Control | Yes | Yes |
| Bluetooth | Yes | Yes |
| Wifi Connectivity | Yes | Yes |
| Wireless Charging | No | No |
| Price | ||
| Base Price | 449.00 | 599.00 |
| Bundle Price | {"DELTA 2 + 220W Solar Panel":"$849","DELTA 2 + 800W Alternator Charger":"$699","DELTA 2 + DELTA 2 Smart Extra Battery":"$999","DELTA 2 + 2*110W Solar Panel":"$849"} | 569.00 |
| Cost Per Wh | 0.44 | 0.59 |
| Extra Battery Cost | 479.00 | — |
| Price Description | Sale price $449 (regular $1,049). Product currently sold out. Spring Sale 2026. | $150 OFF — Sale $449, was $599 |
| Battery | ||
| Battery Capacity Wh | 1024 | 1024 |
| Battery Lifespan Cycles | 4000 | 4000 |
| Expandable Capacity | Yes | No |
| Extra Battery Capacity | 1024 | — |
| Max Extra Batteries | 1 | 0 |
| Product Info | ||
| Brand | EcoFlow | EcoFlow |
| Model Name | DELTA 2 | DELTA 3 Classic |
| Product Url | https://us.ecoflow.com/products/delta-2-portable-power-station?variant=41719074324553 | https://us.ecoflow.com/products/delta-3-classic-portable-power-station |
| DC Power | ||
| Dc Output | Car outlet 12.6V/10A 126W max; 2x DC5521 12.6V/3A 38W max per port (car outlet and DC5521 share 126W total) | USB-A: 1x18W; USB-C: 1x100W + 1x30W; No 12V DC output |
| Physical | ||
| Dimensions | 40 x 21.1 x 28.1 cm | 39.8 x 20.0 x 28.3 cm |
| Energy Density Wh Per Kg | 85.3 | 84.6 |
| Noise Level | 25 | 30 |
| Operating Temp | -10°C to 45°C (discharge), 0°C to 45°C (charge) | 14°F to 113°F |
| Portable | Yes | Yes |
| Weight | 12 kg · 26.5 lbs | 12.1 kg · 26.7 lbs |
| Advanced Features | ||
| Parallel Expansion | No | No |
| Ups Functionality | EPS | Yes |
| Ups Switch Time | 30 | 10 |
| Warranty | ||
| Warranty | 5 | 5 |