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Portable power station comparison

EcoFlow DELTA Pro 3 vs EcoFlow Delta 2

Compare capacity, output, charging and portability.

Compared products
01Selected
EcoFlow DELTA Pro 3 Portable Power Station

EcoFlow DELTA Pro 3 Portable Power Station

  • 4000 W continuous AC output.
  • 51,500 g.
  • Base capacity: 4096Wh.
  • Expansion: up to two DELTA Pro 3 Smart Extra.
  • AC charging: input: 2900W maximum.
KSh 441,000In Stock
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02
EcoFlow Delta 2 Portable Power Station

EcoFlow Delta 2 Portable Power Station

  • 1800 W continuous AC output.
  • 12,000 g.
  • Base capacity: 1024Wh.
  • Expansion: one compatible DELTA 2.
  • AC charging: input: 1200W maximum.
KSh 83,100In Stock
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2 spaces available

Anker SOLIX F2000 PowerHouse 767 (2048Wh, 2300W)KSh 216,340
EcoFlow DELTA Max 1600 Portable Power StationKSh 159,000
EcoFlow DELTA Max 2000 Portable Power StationKSh 169,000
EcoFlow DELTA Pro Portable Power StationKSh 289,000
Anker 757 PowerHouse Portable Power StationKSh 185,000
EcoFlow DELTA 2 Max Portable Power StationKSh 154,000
Anker 535 Portable Power Station (512Wh, 500W)KSh 64,530
2 of 4 products

Our quick verdict

The EcoFlow DELTA Pro 3 has a larger 4,096 Wh battery, more output power (4,000 W continuous) and a higher 8,000 W surge rating, while the EcoFlow Delta 2 has more USB outputs (6) and is lighter (12 kg).

Output power

EcoFlow DELTA Pro 3
4000 W continuous AC output
EcoFlow Delta 2
1800 W continuous AC output

Weight

EcoFlow DELTA Pro 3
51.5 kg
EcoFlow Delta 2
12 kg

Stored energy

EcoFlow DELTA Pro 3
4096Wh
EcoFlow Delta 2
1024Wh

Charging

EcoFlow DELTA Pro 3
2900W maximum
EcoFlow Delta 2
1200W maximum, recharge: 0–80% in 50 minutes

Ports

EcoFlow DELTA Pro 3
4× UK Type G outlets (13A each)
EcoFlow Delta 2
4× UK AC outlets, 1800W combined

Key differences

The main differences to help you choose.

EcoFlow DELTA Pro 3

  • Larger battery: 4,096 Wh (vs 1,024 Wh).
  • More continuous output: 4,000 W (vs 1,800 W).
  • Higher surge power: 8,000 W (vs 2,700 W).
  • Faster mains recharging: 2,900 W input (vs 1,200 W).
  • Accepts more solar power: 2,600 W (vs 500 W).
  • Rated for more charge cycles: 4,000 (vs 3,000).

EcoFlow Delta 2

  • More USB outputs: 6 (vs 4).
  • Lighter: 12 kg (vs 51.5 kg).
  • Lower price: KSh 83,100 (vs KSh 441,000).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

6 priorities selected.
How each product answers the selected priorities
PriorityEcoFlow DELTA Pro 3EcoFlow Delta 2
Stored energy4096Wh1024Wh
Output power4000 W continuous AC output1800 W continuous AC output
ChargingInput: 2900W maximumInput: 1200W maximum, recharge: 0–80% in 50 minutes
Ports4× UK Type G outlets (13A each)4× UK AC outlets, 1800W combined
Weight51.5 kg12 kg
FeaturesUPS: Yes, transfer time: 10msEps: Yes, transfer time: Within 30ms

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
BrandEcoFlowEcoFlow

Power Station

Power Station specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
Brand / ModelEcoFlow DELTA Pro 3; EFD521EcoFlow DELTA 2; DELTA 2
Power Station TypeHeavy-duty portable / home-backup power stationPortable power station
Battery Capacity / ExpansionBase capacity: 4096Wh Expansion: Up to two DELTA Pro 3 Smart Extra Batteries; up to 12288Wh per stationBase capacity: 1024Wh Expansion: One compatible DELTA 2, DELTA Max or DELTA 2 Max Smart Extra Battery
Battery / Cycle LifeChemistry: LiFePO₄ (LFP) Cycle life: 4000 cycles to 80%+ original capacity (0.5C charge/discharge, 25°C)Chemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacity

AC Power

AC Power specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
AC Output / SurgeContinuous: 4000W Surge: 8000WContinuous: 1800W Surge: 2700W
High-Power ModeX-Boost: compatible resistive appliances up to 6000WX-Boost: compatible resistive appliances up to 2400W
AC Voltage / Frequency / InverterVoltage: 230V Frequency: 50Hz Inverter: Pure sine wave Region: UKVoltage: 230V Frequency: 50Hz / 60Hz Inverter: Pure sine wave Region: UK

Outputs & Ports

Outputs & Ports specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
AC Outlets4× UK Type G outlets (13A each); 1× CEE outlet (16A); 4000W combined4× UK AC outlets; 1800W combined
USB Outputs2× USB-A 18W; 2× USB-C 100W2× USB-A 12W per port, 24W total; 2× USB-A fast charging 18W per port, 36W total; 2× USB-C 100W per port, 200W total
DC / Vehicle OutputsDC5521: 12.6V / 5A maximum; Anderson: 12.6V / 30A maximum; 378W combined DC outputCar socket: 12.6V / 10A, 126W; 2× DC5521: 12.6V / 3A, 38W per port; 126W shared DC output
Other OutputsProprietary AC power input/output and extra-battery ports—

Charging

Charging specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
AC ChargingInput: 2900W maximum; 220–240V / 12.5A, 50Hz / 60Hz Recharge: 0–80% in approximately 1 hourInput: 1200W maximum Recharge: 0–80% in 50 minutes
Solar ChargingPower: 2600W total: high-PV 1600W + low-PV 1000W Voltage: High-PV: 30–150V; low-PV: 11–60V Current: High-PV: 15A; low-PV: 20A Mppt: Dual MPPTPower: 500W maximum Voltage: 11–60V Current: 15A maximum MPPT: Yes
Vehicle / Alternator ChargingLow-PV input: 12V / 8A vehicle charging; 48V / 20A supported12V / 24V vehicle charging; 8A maximum
Other / Combined ChargingMethods: Optional compatible EcoFlow Smart Generator; multiple charging inputsOptional compatible EcoFlow Smart Generator

Backup Power

Backup Power specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
UPS / BackupUps: Yes Transfer time: 10ms Pass through: YesEps: Yes Transfer time: Within 30ms Pass through: Yes
Home Backup / ExpansionUp to two compatible extra batteries; optional UK home transfer-switch integrationOne compatible extra battery; expandable home backup

Protection & Smart Features

Protection & Smart Features specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
Battery Management / ProtectionBms: Yes Protection: Overvoltage, overload, overtemperature, short circuit, low temperature, low voltage and overcurrent Charging temperature: 0–45°C Discharging temperature: −10–45°C IP rating: IP65 internal battery packBms: Yes Protection: Overvoltage, overload, overtemperature, short circuit, low temperature, low voltage and overcurrent Charging temperature: 0–45°C Discharging temperature: −10–45°C
Connectivity / Smart FeaturesWi-Fi 4; Bluetooth 5; EcoFlow app; CAN (RJ45); backup reserve; charging limitsWi-Fi; Bluetooth; EcoFlow app; LCD display

Physical & Package

Physical & Package specifications comparison
SpecificationEcoFlow DELTA Pro 3 Portable Power StationEcoFlow Delta 2 Portable Power Station
Dimensions / WeightDimensions: 693 × 341 × 410 mm Weight: 51.5 kgDimensions: 400 × 211 × 281 mm Weight: 12 kg
Portability / Noise / WarrantyPortability: Wheels; telescopic handle Warranty: 5-year UK manufacturer warrantyPortability: Carry handles Warranty: 5-year UK manufacturer warranty
In the BoxDELTA Pro 3, AC charging cable, two grip protectors, quick-start guide, safety instructions and warranty cardPower station, AC charging cable, user manual and warranty card

Similarities

  • Both have 4 AC outlets.
  • Both use DC5521 (DC / vehicle outputs).
  • Both are made by EcoFlow.

In summary

For most buyers the EcoFlow DELTA Pro 3 is the better buy; the EcoFlow Delta 2 makes sense if you want more USB outputs.

Back to compared products ↑

In-stock alternatives

EcoFlow DELTA 3 Plus Portable Power StationFor EcoFlow DELTA Pro 3 Portable Power StationEcoFlow DELTA 3 Plus Portable Power StationView product ↗EcoFlow DELTA 3 2000 AirFor EcoFlow DELTA Pro 3 Portable Power StationEcoFlow DELTA 3 2000 AirView product ↗EcoFlow DELTA 3 Portable Power StationFor EcoFlow Delta 2 Portable Power StationEcoFlow DELTA 3 Portable Power StationView product ↗

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