EcoFlow Delta 2 MaxvsEcoFlow DELTA 3 Max

Head-to-head comparison of scores, specs, and features.

EcoFlow DELTA 3 Maxwins by1.49points overall.

The Verdict

Overall take

Buy EcoFlow Delta 2 Max if

  • Better Expandable Capacity: Yes vs No
  • Better Max Extra Batteries: 2 vs 0
  • Better Max Solar Input: 1000 vs 500

Buy EcoFlow DELTA 3 Max if

  • Better Ups Functionality: Yes vs EPS
  • Better Ups Switch Time: 10 vs 30
  • Better Battery Lifespan Cycles: 4000 vs 3000

Top 3 Key Differences

Expandable Capacity
Yesvs No
Score: 100 vs 0
Ups Functionality
EPSvs Yes
Score: 0 vs 100
Max Extra Batteries
2vs 0
Score: 60 vs 20

Performance by Category

ChargingEcoFlow Delta 2 Max wins
EcoFlow Delta 2 Max
96.0
EcoFlow DELTA 3 Max
90.7
AC PowerTie
EcoFlow Delta 2 Max
100.0
EcoFlow DELTA 3 Max
100.0
ConnectivityTie
EcoFlow Delta 2 Max
75.0
EcoFlow DELTA 3 Max
75.0
PriceTie
EcoFlow Delta 2 Max
91.5
EcoFlow DELTA 3 Max
92.5
BatteryEcoFlow Delta 2 Max wins
EcoFlow Delta 2 Max
77.0
EcoFlow DELTA 3 Max
47.6
PhysicalEcoFlow DELTA 3 Max wins
EcoFlow Delta 2 Max
90.1
EcoFlow DELTA 3 Max
94.7
Advanced FeaturesEcoFlow DELTA 3 Max wins
EcoFlow Delta 2 Max
21.5
EcoFlow DELTA 3 Max
66.7
WarrantyTie
EcoFlow Delta 2 Max
100.0
EcoFlow DELTA 3 Max
100.0

Full Technical Specifications

FeatureEcoFlow Delta 2 MaxEcoFlow DELTA 3 Max
Charging
Ac Charge Speed6085
Charger TypeX-Stream AC fast charge (1800W), solar (1000W dual port), car (12V/24V 8A)X-Stream AC (1800W), Solar (500W), Smart Generator, Car/Alternator
Fast ChargingYesYes
Max Solar Input1000500
Max Solar Panels23
Pass Through ChargingYesYes
Smart ChargingYesYes
Solar Connector TypeXT60iXT60i
Solar Panel CompatibilityEcoFlow and compatible panels; 11-60V 15A per portEcoFlow solar panels (XT60i connector, 11-60V)
AC Power
Ac Efficiency99%
Ac Output Amps15A max20
Ac Power Continuous24002400
Ac Power Surge48004800
Ac Wave QualityPure Sine WavePure Sine Wave
Connectivity
App ControlYesYes
BluetoothYesYes
Wifi ConnectivityYesYes
Wireless ChargingNoNo
Price
Base Price849.00749.00
Bundle Price1499.001099.00
Cost Per Wh0.410.37
Extra Battery Cost999.00
Price DescriptionSpring Sale 2026: $849 (was $1,899). Bundle with DELTA 2 Max Smart Extra Battery: $1,499 (was $3,298).Sale price $749 (regular $1,499). Spring Sale 2026, sold out at time of research.
Battery
Battery Capacity Wh20482048
Battery Lifespan Cycles30004000
Expandable CapacityYesNo
Extra Battery Capacity2048
Max Extra Batteries20
Product Info
BrandEcoFlowEcoFlow
Model NameDELTA 2 MaxDELTA 3 Max
Product Image Urlhttps://us.ecoflow.com/cdn/shop/files/ecoflow-us-ecoflow-delta-2-max-portable-power-station-d2m-delta-2-max-portable-power-station-1182569251.png?v=1754036926
Product Urlhttps://us.ecoflow.com/products/delta-2-max-portable-power-station?variant=54615943512137https://us.ecoflow.com/products/delta-3-max-series-portable-power-station?variant=54692162764873&view=d3m
DC Power
Dc Output1x car port (12.6V/10A, 126W), 2x DC5521 (12.6V/3A, 38W each)12V/10A Cigarette Lighter (126W), USB-C 100W x1, USB-C 30W x2, USB-A 18W x1
Physical
Dimensions49.7 x 24.2 x 30.5 cm49.4 x 23.9 x 30.5 cm
Energy Density Wh Per Kg89.0100.9
Noise Level3025
Operating TempCharge: 0-45°C, Discharge: -10 to 45°CCharge: 0°C to 45°C; Discharge: -10°C to 45°C
PortableYesYes
Weight23 kg · 50.7 lbs20.3 kg · 44.8 lbs
Advanced Features
Parallel ExpansionNoNo
Ups FunctionalityEPSYes
Ups Switch Time3010
Warranty
Warranty55