EcoFlow Delta Pro 3vsOUPES Guardian 6000

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

Winner
EcoFlow Delta Pro 3

EcoFlow Delta Pro 3

78.2Grade A+
Price
$2299.00
AC Power
4000W
OUPES Guardian 6000

OUPES Guardian 6000

76.0Grade A
Price
$1599.00
AC Power
6000W

EcoFlow Delta Pro 3wins by2.11points overall.

The Verdict

Overall take

Buy EcoFlow Delta Pro 3 if

  • Better Parallel Expansion: Yes vs No
  • Better Ups Functionality: Yes vs EPS
  • Better Ups Switch Time: 10 vs 20

Buy OUPES Guardian 6000 if

  • Better Portable: Yes vs No
  • Better Max Extra Batteries: 8 vs 2
  • Better Base Price: 1599.00 vs 2299.00

Top 3 Key Differences

Parallel Expansion
Yesvs No
Score: 100 vs 0
Portable
Novs Yes
Score: 0 vs 100
Ups Functionality
Yesvs EPS
Score: 100 vs 0

Performance by Category

ChargingTie
EcoFlow Delta Pro 3
100.0
OUPES Guardian 6000
100.0
AC PowerTie
EcoFlow Delta Pro 3
100.0
OUPES Guardian 6000
100.0
ConnectivityTie
EcoFlow Delta Pro 3
75.0
OUPES Guardian 6000
75.0
PriceOUPES Guardian 6000 wins
EcoFlow Delta Pro 3
75.3
OUPES Guardian 6000
84.3
BatteryOUPES Guardian 6000 wins
EcoFlow Delta Pro 3
90.0
OUPES Guardian 6000
100.0
PhysicalOUPES Guardian 6000 wins
EcoFlow Delta Pro 3
56.5
OUPES Guardian 6000
79.0
Advanced FeaturesEcoFlow Delta Pro 3 wins
EcoFlow Delta Pro 3
100.0
OUPES Guardian 6000
25.6
WarrantyTie
EcoFlow Delta Pro 3
100.0
OUPES Guardian 6000
100.0

Full Technical Specifications

FeatureEcoFlow Delta Pro 3OUPES Guardian 6000
Charging
Ac Charge Speed63180
Charger TypeAC wall charging (up to 3000W), Solar (2600W dual-port), Car/Alternator (12V/8A or 48V/20A), AC POWER IN/OUT proprietary port (up to 4800W)240V AC (3,600W), 120V AC (1,800W), Solar MPPT (2,100W max), Car (8.5A)
Fast ChargingYesYes
Max Solar Input26002100
Max Solar Panels65
Pass Through ChargingYesYes
Smart ChargingYesYes
Solar Connector TypeXT60 (High-PV port), XT60i (Low-PV/Car port)MC4 (via Anderson to MC4 cable)
Solar Panel CompatibilityHigh-PV: 30-150V, 15A, 1600W max; Low-PV: 11-60V, 20A, 1000W max; compatible with EcoFlow 400W and 220W solar panels12-140V DC, MPPT 18-130V, 15A max; Compatible with OUPES 240W solar panels
AC Power
Ac Output Amps16.7A max (120/240V~16.7A 60Hz US)50A max
Ac Power Continuous40006000
Ac Power Surge80009000
Ac Wave QualityPure Sine WavePure Sine Wave
Connectivity
App ControlYesYes
BluetoothYesYes
Wifi ConnectivityYesYes
Wireless ChargingNoNo
Price
Base Price2299.001599.00
Bundle Price3699.003319.00
Cost Per Wh0.560.35
Extra Battery Cost1,999.00—
Price DescriptionSale price $2,299 (regular $3,699). Bundle with 1 Extra Battery: $3,699 (regular $6,298). Spring Sale 2026.Regular price $2,499.00; current promo price $1,599 with auto-applied discount code (Spring Mega Sale). Guardian 6000 unit only.
Battery
Battery Capacity Wh40964608
Battery Lifespan Cycles40004000
Expandable CapacityYesYes
Extra Battery Capacity40964608
Max Extra Batteries28
Product Info
BrandEcoFlowOUPES
Model NameDELTA Pro 3Guardian 6000
Product Urlhttps://us.ecoflow.com/products/delta-pro-3-portable-power-station?variant=41385721004105https://oupes.com/products/oupes-guardian-6000-portable-power-station
DC Power
Dc Output12.6V/30A Anderson (378W total), 12.6V/5A DC5521; 2x USB-A (QC3.0, 18W each); 2x USB-C (PD3.0, 100W each)XT90: 12V/24V; USB-A: 2x18W max; USB-C: 1x140W max; Car charging: 12-15.5V 8.5A max
Physical
Dimensions41.04 x 34.1 x 69.3 cm63.36 x 41.25 x 42.70 cm
Energy Density Wh Per Kg79.591.2
Noise Level3045
Operating TempCharge: 0°C to 45°C, Discharge: -10°C to 45°C0°C to 40°C (32°F to 104°F)
PortableNoYes
Weight51.5 kg · 113.5 lbs50.5 kg · 111.3 lbs
Advanced Features
Parallel ExpansionYesNo
Ups FunctionalityYesEPS
Ups Switch Time1020
Warranty
Warranty55