OUPES Mega 3vsEcoFlow DELTA 3 Max Plus
Head-to-head comparison of scores, specs, and features.

OUPES Mega 3
78.8Grade A+
Price
$1099.00
AC Power
3600W

EcoFlow DELTA 3 Max Plus
81.7Grade A+
Price
$1099.00
AC Power
3000W
EcoFlow DELTA 3 Max Pluswins by2.88points overall.
The Verdict
Overall take
Buy OUPES Mega 3 if
- Better Max Extra Batteries: 6 vs 2
- Better Max Solar Input: 2100 vs 1000
- Better Battery Capacity Wh: 3072 vs 2048
Buy EcoFlow DELTA 3 Max Plus if
- Better Noise Level: 25 vs 60
- Better Ups Switch Time: 10 vs 20
- Better Weight: 22.1 vs 37.8
Top 3 Key Differences
Noise Level
60vs 25
Score: 49 vs 100
Max Extra Batteries
6vs 2
Score: 100 vs 60
Ups Switch Time
20vs 10
Score: 76.8 vs 100
Performance by Category
ChargingOUPES Mega 3 wins
OUPES Mega 3
100.0
EcoFlow DELTA 3 Max Plus
96.0
AC PowerTie
OUPES Mega 3
100.0
EcoFlow DELTA 3 Max Plus
100.0
ConnectivityTie
OUPES Mega 3
75.0
EcoFlow DELTA 3 Max Plus
75.0
PriceTie
OUPES Mega 3
89.0
EcoFlow DELTA 3 Max Plus
86.5
BatteryOUPES Mega 3 wins
OUPES Mega 3
92.0
EcoFlow DELTA 3 Max Plus
82.6
PhysicalEcoFlow DELTA 3 Max Plus wins
OUPES Mega 3
72.0
EcoFlow DELTA 3 Max Plus
91.6
Advanced FeaturesEcoFlow DELTA 3 Max Plus wins
OUPES Mega 3
58.9
EcoFlow DELTA 3 Max Plus
66.7
WarrantyTie
OUPES Mega 3
100.0
EcoFlow DELTA 3 Max Plus
100.0
Full Technical Specifications
| Feature | OUPES Mega 3 | EcoFlow DELTA 3 Max Plus |
|---|---|---|
| Charging | ||
| Ac Charge Speed | 108 | 80 |
| Charger Type | AC wall adapter (Fast: 1800W, Slow: 900W), Solar (MPPT 18-140V, 15A max), Car/Alternator | — |
| Fast Charging | Yes | Yes |
| Max Solar Input | 2100 | 1000 |
| Pass Through Charging | Yes | Yes |
| Smart Charging | Yes | Yes |
| Solar Connector Type | Anderson (MC4 to Anderson cable included) | XT60i |
| Solar Panel Compatibility | OUPES 240W Solar Panel; compatible with MC4 solar panels via included adapter | — |
| AC Power | ||
| Ac Output Amps | 20A max (NEMA 5-20R), 30A max (TT-30R) | — |
| Ac Power Continuous | 3600 | 3000 |
| Ac Power Surge | 7000 | 6000 |
| 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 | 1099.00 | 1099.00 |
| Bundle Price | 1669.00 | — |
| Cost Per Wh | 0.36 | 0.54 |
| Extra Battery Cost | 1,000.00 | — |
| Price Description | Sale price $1,099.00 (regular $2,299.00). Bundles: Mega 3 + 240W Solar Panel x2 $1,499.00; Mega 3 + B2 Extra Battery $1,669.00; Mega 3 + B2 + 240W Solar Panel x2 $2,049.00 | — |
| Battery | ||
| Battery Capacity Wh | 3072 | 2048 |
| Battery Lifespan Cycles | 3500 | 4000 |
| Expandable Capacity | Yes | Yes |
| Extra Battery Capacity | 2048 | 2048 |
| Max Extra Batteries | 6 | 2 |
| Product Info | ||
| Brand | OUPES | EcoFlow |
| Model Name | Mega 3 | DELTA 3 Max Plus |
| Product Url | https://oupes.com/products/oupes-mega-3-home-backup-portable-power-station-3600w-3072wh | https://us.ecoflow.com/products/delta-3-max-series-portable-power-station?variant=54718699962441 |
| DC Power | ||
| Dc Output | 2x DC 5521 (12V/10A), 1x Anderson (12V/30A), 1x Car Lighter (12V/10A), 4x USB-A (QC 3.0), 2x USB-C (PD 100W per port) | USB-A: 1x18W; USB-C: 1x140W + 2x45W; Anderson 12V/30A 378W; Car 12.6V/10A 126W |
| Physical | ||
| Dimensions | 64.15 x 30.45 x 43.75 cm | 49.4 x 24.2 x 30.5 cm |
| Energy Density Wh Per Kg | 81.3 | 92.7 |
| Noise Level | 60 | 25 |
| Operating Temp | 0°C~40°C (32°F~104°F) | 14°F to 113°F |
| Portable | Yes | Yes |
| Weight | 37.8 kg · 83.3 lbs | 22.1 kg · 48.7 lbs |
| Advanced Features | ||
| Parallel Expansion | No | No |
| Ups Functionality | Yes | Yes |
| Ups Switch Time | 20 | 10 |
| Warranty | ||
| Warranty | 5 | 5 |