EcoFlow DELTA 3 1000 AirvsYoshino B660 SST
Head-to-head comparison of scores, specs, and features.
Winner
EcoFlow DELTA 3 1000 Air
68.9Grade B+
Price
$499.00
AC Power
500W
Yoshino B660 SST
60.0Grade B-
Price
$549.00
AC Power
660W
EcoFlow DELTA 3 1000 Airwins by8.94points overall.
The Verdict
Overall take
Buy EcoFlow DELTA 3 1000 Air if
- Better Energy Density Wh Per Kg: 97.0 vs 35.6
- Better Cost Per Wh: 0.52 vs 0.91
- Better Max Solar Input: 500 vs 100
Buy Yoshino B660 SST if
- Better Warranty: 5 vs 2
- Better Battery Lifespan Cycles: 4000 vs 3000
- Better Ac Power Continuous: 660 vs 500
Top 3 Key Differences
Energy Density Wh Per Kg
97.0vs 35.6
Score: 95.7 vs 30
Warranty
2vs 5
Score: 51 vs 100
Cost Per Wh
0.52vs 0.91
Score: 97.5 vs 68.4
Performance by Category
ChargingEcoFlow DELTA 3 1000 Air wins
EcoFlow DELTA 3 1000 Air
90.7
Yoshino B660 SST
85.0
AC PowerTie
EcoFlow DELTA 3 1000 Air
58.1
Yoshino B660 SST
59.7
ConnectivityTie
EcoFlow DELTA 3 1000 Air
75.0
Yoshino B660 SST
75.0
PriceEcoFlow DELTA 3 1000 Air wins
EcoFlow DELTA 3 1000 Air
98.8
Yoshino B660 SST
82.7
BatteryYoshino B660 SST wins
EcoFlow DELTA 3 1000 Air
34.7
Yoshino B660 SST
42.0
PhysicalEcoFlow DELTA 3 1000 Air wins
EcoFlow DELTA 3 1000 Air
98.9
Yoshino B660 SST
70.9
Advanced FeaturesEcoFlow DELTA 3 1000 Air wins
EcoFlow DELTA 3 1000 Air
66.7
Yoshino B660 SST
58.9
WarrantyYoshino B660 SST wins
EcoFlow DELTA 3 1000 Air
51.0
Yoshino B660 SST
100.0
Full Technical Specifications
| Feature | EcoFlow DELTA 3 1000 Air | Yoshino B660 SST |
|---|---|---|
| Charging | ||
| Ac Charge Speed | 120 | 120 |
| Charger Type | AC adapter (X-Stream), 100-240V~50/60Hz, 5.5A input | AC adapter (DC In), Car (12V), Solar (XT60/MC4), USB-C PD |
| Fast Charging | Yes | Yes |
| Max Solar Input | 500 | 100 |
| Max Solar Panels | 2 | 1 |
| Pass Through Charging | Yes | Yes |
| Smart Charging | Yes | Yes |
| Solar Connector Type | XT60i | MC4 to XT60 (XT60 port) |
| Solar Panel Compatibility | EcoFlow 110W, 160W, 220W portable solar panels (XT60 connector implied); max 500W input | Yoshino SP100 (12-30VDC) |
| AC Power | ||
| Ac Output Amps | 4.2A max | 3 outlets, 120VAC, 60Hz (pure sine wave) |
| Ac Power Continuous | 500 | 660 |
| Ac Power Surge | 1000 | 900 |
| 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 | 499.00 | 549.00 |
| Bundle Price | 519.00 | — |
| Cost Per Wh | 0.52 | 0.91 |
| Price Description | On sale $329 (reg. $499). Member-only additional discount available via EcoCredits. | Sale $549 (reg. $699) |
| Battery | ||
| Battery Capacity Wh | 960 | 602 |
| Battery Lifespan Cycles | 3000 | 4000 |
| Expandable Capacity | No | No |
| Max Extra Batteries | 0 | 0 |
| Product Info | ||
| Brand | EcoFlow | Yoshino |
| Model Name | DELTA 3 1000 Air | B660 SST |
| Product Url | https://us.ecoflow.com/products/delta-3-1000-air-10ms-ups-portable-power-station | https://yoshinopower.com/products/b660-solid-state-portable-power-station |
| DC Power | ||
| Dc Output | USB-A: 1x12W; USB-C: 1x18W; No 12V DC output | 12V DC: 2 ports 12.6VDC/10A (126W total); USB-C: 20W; USB-C PD: 100W; USB-A: 2 ports 12W each |
| Physical | ||
| Dimensions | 22.0 x 22.3 x 26.3 cm | 29.7 x 20.3 x 25.4 cm |
| Energy Density Wh Per Kg | 97.0 | 35.6 |
| Noise Level | 39 | 38 dB |
| Operating Temp | 14°F to 113°F | Discharge: 14 to 140F (-10 to 60C); Charge: 32 to 131F (0 to 55C) |
| Portable | Yes | Yes |
| Weight | 9.9 kg · 21.8 lbs | 16.9 kg · 37.3 lbs |
| Advanced Features | ||
| Parallel Expansion | No | No |
| Ups Functionality | Yes | Yes |
| Ups Switch Time | 10 | 20ms |
| Warranty | ||
| Warranty | 2 | 5 |