EcoFlow DELTA 2 vs OUPES Mega 1

Winner EcoFlow DELTA 2 has the higher overall owner score (3.8) in our data.

EcoFlow DELTA 2OUPES Mega 1
Overall3.83.7
Owner sentiment3.74.1
Recommendations5.02.1
Value3.04.1
Owner comments357
Price snapshot$1,028.99 (price as of 2026-11-07)$529.00 (price as of 2026-11-07)

Specs (shared fields)

EcoFlow DELTA 2OUPES Mega 1
Wattage2048 watt-hours1024 watt-hours
Fuel TypeelectricElectric
Power SourceSolar PoweredBattery Powered
Recommended Uses For ProductHome BackupCamping & road trips, Home backup, Off-grid power, Power outages & emergencies
Voltage120 volts120 volts_of_alternating_current
Output Wattage3400 watts2000
Additional Features10-Year Long-Lasting LFP battery, 2400W LFP Solar Generator, As Quiet as 30 dB, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance.0-80% Charge in 36 Mins, <20ms UPS, Expand Capacity to Huge 5kWh, Smart APP Control, Supports By-pass Charging
Engine Type4 Stroke4 Stroke
Ignition System Typeelectricelectric start
Engine Displacement79 cubic centimeters79 cubic centimeters
Total Power Outlets64
Engine Power Maximum2400 watts4.5 KW

Where owner praise diverges

Owners praise the EcoFlow DELTA 2 more for ups backup, capacity, and the OUPES Mega 1 more for solar charging, reliability.

Check EcoFlow price on Amazon Check OUPES price on Amazon

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EcoFlow DELTA 2 review · OUPES Mega 1 review