Skip to content

Portable power station comparison

EcoFlow DELTA 2 Max vs EcoFlow DELTA Pro 3

Compare capacity, output, charging and portability.

Compared products
01Selected
EcoFlow DELTA 2 Max Portable Power Station

EcoFlow DELTA 2 Max Portable Power Station

  • 2400 W continuous AC output.
  • 23,000 g.
  • Base capacity: 2048Wh.
  • AC charging: input: 2400W maximum.
  • UPS / backup: eps: Yes.
KSh 154,000Out of Stock
02
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
Add to cart

Add to comparison

2 spaces available

EcoFlow DELTA 3 2000 AirKSh 100,400
EcoFlow DELTA 3 Portable Power StationKSh 95,000
EcoFlow DELTA 3 Plus Portable Power StationKSh 105,500
Anker 757 PowerHouse Portable Power StationKSh 185,000
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
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 Max has more USB outputs (6) and is lighter (23 kg).

Output power

EcoFlow DELTA 2 Max
2400 W continuous AC output
EcoFlow DELTA Pro 3
4000 W continuous AC output

Weight

EcoFlow DELTA 2 Max
23 kg
EcoFlow DELTA Pro 3
51.5 kg

Stored energy

EcoFlow DELTA 2 Max
Base capacity: 2048Wh
EcoFlow DELTA Pro 3
4096Wh

Charging

EcoFlow DELTA 2 Max
2400W maximum
EcoFlow DELTA Pro 3
2900W maximum

Ports

EcoFlow DELTA 2 Max
4× UK AC outlets, 2400W combined
EcoFlow DELTA Pro 3
4× UK Type G outlets (13A each)

Key differences

The main differences to help you choose.

EcoFlow DELTA 2 Max

  • More USB outputs: 6 (vs 4).
  • Lighter: 23 kg (vs 51.5 kg).

EcoFlow DELTA Pro 3

  • Larger battery: 4,096 Wh (vs 2,048 Wh).
  • More continuous output: 4,000 W (vs 2,400 W).
  • Higher surge power: 8,000 W (vs 4,800 W).
  • Accepts more solar power: 2,600 W (vs 1,000 W).
  • Rated for more charge cycles: 4,000 (vs 3,000).
  • Higher total output: 2,600 W (vs 1,000 W).

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 2 MaxEcoFlow DELTA Pro 3
Stored energyBase capacity: 2048Wh4096Wh
Output power2400 W continuous AC output4000 W continuous AC output
ChargingInput: 2400W maximumInput: 2900W maximum
Ports4× UK AC outlets, 2400W combined4× UK Type G outlets (13A each)
Weight23 kg51.5 kg
FeaturesEps: Yes, transfer time: Within 30msUPS: Yes, transfer time: 10ms

Detailed comparison

Explore the full specifications, section by section.

General

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

Power Station

Power Station specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 Portable Power Station
Brand / ModelEcoFlow DELTA 2 Max; EFD350EcoFlow DELTA Pro 3; EFD521
Power Station TypePortable power stationHeavy-duty portable / home-backup power station
Battery Capacity / ExpansionBase capacity: 2048Wh Expansion: Up to two DELTA 2 Max Smart Extra Batteries Maximum capacity: 6144WhBase capacity: 4096Wh Expansion: Up to two DELTA Pro 3 Smart Extra Batteries; up to 12288Wh per station
Battery / Cycle LifeChemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacityChemistry: LiFePO₄ (LFP) Cycle life: 4000 cycles to 80%+ original capacity (0.5C charge/discharge, 25°C)

AC Power

AC Power specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 Portable Power Station
AC Output / SurgeContinuous: 2400W Surge: 4800WContinuous: 4000W Surge: 8000W
High-Power ModeX-Boost: compatible resistive appliances up to 3100WX-Boost: compatible resistive appliances up to 6000W
AC Voltage / Frequency / InverterVoltage: 230V Frequency: 50Hz / 60Hz Inverter: Pure sine wave Region: UKVoltage: 230V Frequency: 50Hz Inverter: Pure sine wave Region: UK

Outputs & Ports

Outputs & Ports specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 Portable Power Station
AC Outlets4× UK AC outlets; 2400W combined4× UK Type G outlets (13A each); 1× CEE outlet (16A); 4000W combined
USB Outputs2× USB-A 12W; 2× USB-A fast charging 18W; 2× USB-C 100W2× USB-A 18W; 2× USB-C 100W
DC / Vehicle OutputsCar socket: 12.6V / 10A, 126W; 2× DC5521: 12.6V / 3A, 38W per port; 126W shared DC outputDC5521: 12.6V / 5A maximum; Anderson: 12.6V / 30A maximum; 378W combined DC output
Other Outputs—Proprietary AC power input/output and extra-battery ports

Charging

Charging specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 Portable Power Station
AC ChargingInput: 2400W maximum Recharge: 0–80% in approximately 53 minutesInput: 2900W maximum; 220–240V / 12.5A, 50Hz / 60Hz Recharge: 0–80% in approximately 1 hour
Solar ChargingPower: 1000W total; two independent 500W inputs Voltage: 11–60V per input Current: 15A maximum per input Mppt: Dual MPPTPower: 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 MPPT
Vehicle / Alternator Charging12V / 24V vehicle charging; 8A maximumLow-PV input: 12V / 8A vehicle charging; 48V / 20A supported
Other / Combined ChargingMethods: AC + solar; optional compatible EcoFlow Smart Generator Maximum combined input: 2400W (1800W AC + 600W solar) Recharge: 0–80% in approximately 43 minutes with 1800W AC + 600W solarMethods: Optional compatible EcoFlow Smart Generator; multiple charging inputs

Backup Power

Backup Power specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 Portable Power Station
UPS / BackupEps: Yes Transfer time: Within 30ms Pass through: YesUps: Yes Transfer time: 10ms Pass through: Yes
Home Backup / ExpansionUp to two compatible DELTA 2 Max Smart Extra BatteriesUp to two compatible extra batteries; optional UK home transfer-switch integration

Protection & Smart Features

Protection & Smart Features specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 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°CBms: 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 pack
Connectivity / Smart FeaturesWi-Fi; Bluetooth; EcoFlow app; LCD displayWi-Fi 4; Bluetooth 5; EcoFlow app; CAN (RJ45); backup reserve; charging limits

Physical & Package

Physical & Package specifications comparison
SpecificationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro 3 Portable Power Station
Dimensions / WeightDimensions: 497 × 242 × 305 mm Weight: 23 kgDimensions: 693 × 341 × 410 mm Weight: 51.5 kg
Portability / Noise / WarrantyPortability: Carry handles Warranty: 5-year UK manufacturer warrantyPortability: Wheels; telescopic handle Warranty: 5-year UK manufacturer warranty
In the BoxPower station, AC charging cable, user manual and warranty cardDELTA Pro 3, AC charging cable, two grip protectors, quick-start guide, safety instructions 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 Max makes sense if you want more USB outputs.

Back to compared products ↑

In-stock alternatives

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

Related comparisons

EcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA 3 2000 AirEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA 3 Portable Power StationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA 3 Plus Portable Power StationAnker 757 PowerHouse Portable Power StationEcoFlow DELTA 2 Max Portable Power StationAnker SOLIX F2000 PowerHouse 767 (2048Wh, 2300W)EcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Max 1600 Portable Power StationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Max 2000 Portable Power StationEcoFlow DELTA 2 Max Portable Power StationEcoFlow DELTA Pro Portable Power StationEcoFlow DELTA 2 Max Portable Power Station
Menu
Need Help? +254 112891117
Back to Top

My Cart