Verdict: The Champion 3500W Dual Fuel Generator provides superior raw power and runtime on fuel per Consumer Reports tests but requires maintenance and produces noise. The EcoFlow Delta Pro 2 wins on convenience and quiet operation with 2400W output and 5.4 kWh capacity per EcoFlow specs, making it better for most modern users avoiding fuel hassles. Champion beats the EcoFlow on peak loads by 1100W but trails in features and emissions.
Winner: EcoFlow Delta Pro 2
Champion 3500W Dual Fuel Generator: 6.5/10
EcoFlow Delta Pro 2: 8/10
| Champion 3500W Dual Fuel Generator | EcoFlow Delta Pro 2 | |
|---|---|---|
| Power Output | 3500W running / 4375W starting | 2400W running / 4800W surge |
| Fuel Type | Gasoline or Propane | Battery (expandable with solar/gas generator) |
| Weight | 119 lbs | 69.9 pounds |
| Runtime | 12 hours at 50% load (gasoline) | Variable (up to 5.4 kWh base capacity) |
Our pick: EcoFlow Delta Pro 2.
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