#1EcoFlow DELTA 2

Product Review · Power Stations · #1 Ranked

EcoFlow DELTA 2

Large · Reviewed by Drew · Sept 2026

90
Viper Pick badge
Viper Pick
Rank #1 of 14 · Power Stations
$399
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The verdict

Why it scored a 90

1,024Wh LFP; 1,800W AC/100W USB-C; Fast AC charge. Satisfaction tops the breakdown at 94; Features is where it gives up the most ground at 85.

Key specs

What you're getting

  • 1,024 Wh LFP battery, rated for 3,000 cycles
  • 1,800 W AC output (2,700 W with X-Boost)
  • Two 100 W USB-C ports plus USB-A and six AC outlets
  • Fast AC charging: 0-80% in 50 minutes, full in 80 minutes
  • 27 lb, one of the lighter 1 kWh-class stations
  • Expandable to 2,048 Wh with the DELTA 2 extra battery
  • Up to 500 W solar input for off-grid recharging
  • 5-year manufacturer warranty on the unit

ViperScore breakdown

FactorScoreWeightPoints
Value90×25%22.5
Quality88×20%17.6
Features85×15%12.8
Reliability93×15%13.9
Satisfaction94×15%14.1
Warranty88×10%8.8
Weighted total90

At a glance

  • 1,024Wh LFP
  • 1,800W AC/100W USB-C
  • Fast AC charge
  • Price$399
  • TierLarge
  • Category rank#1 of 14
Drew
Drew
Reviewed by
Drew · Live review
EcoFlow DELTA 2
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