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Power station comparison

EcoFlow Delta 2 vs EcoFlow RIVER 3 Max

Compare capacity, output, charging and portability.

Compared products
01Selected
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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02
EcoFlow RIVER 3 Max

EcoFlow RIVER 3 Max

  • 600 W continuous AC output.
  • Base capacity: 572Wh (station + EB300).
  • Expansion: one compatible EB300 or EB600 extra battery.
  • AC charging: input: 650W maximum with connected extra battery.
  • UPS / backup: ups: Yes.
KSh 66,700In Stock
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2 spaces available

EcoFlow RIVER 3 Max PlusKSh 83,800
EcoFlow DELTA 3 2000 AirKSh 100,400
EcoFlow DELTA 3 Portable Power StationKSh 95,000
EcoFlow DELTA 2 Black E980 Portable Power StationKSh 61,800
EcoFlow DELTA 3 Plus Portable Power StationKSh 105,500
Anker 535 Portable Power Station (512Wh, 500W)KSh 64,530
EcoFlow RIVER Pro Portable Power StationKSh 79,000
2 of 4 products

Our quick verdict

The EcoFlow Delta 2 has a larger 1,024 Wh battery, more output power (1,800 W continuous) and a higher 2,700 W surge rating, while the EcoFlow RIVER 3 Max costs KSh 16,400 less.

Output power

EcoFlow Delta 2
1800 W continuous AC output
EcoFlow RIVER 3 Max
600 W continuous AC output

Stored energy

EcoFlow Delta 2
1024Wh
EcoFlow RIVER 3 Max
572Wh (station + EB300)

Charging

EcoFlow Delta 2
1200W maximum, recharge: 0–80% in 50 minutes
EcoFlow RIVER 3 Max
650W maximum with connected extra battery

Ports

EcoFlow Delta 2
4× UK AC outlets, 1800W combined
EcoFlow RIVER 3 Max
3× UK AC outlets, 600W combined

Features

EcoFlow Delta 2
Eps: Yes, transfer time: Within 30ms
EcoFlow RIVER 3 Max
UPS: Yes, transfer time: <10ms

Key differences

The main differences to help you choose.

EcoFlow Delta 2

  • Larger battery: 1,024 Wh (vs 572 Wh).
  • More continuous output: 1,800 W (vs 600 W).
  • Higher surge power: 2,700 W (vs 1,200 W).
  • Faster mains recharging: 1,200 W input (vs 650 W).
  • Accepts more solar power: 500 W (vs 220 W).
  • More AC outlets: 4 (vs 3).

EcoFlow RIVER 3 Max

  • Lower price: KSh 66,700 (vs KSh 83,100).
  • Also in the box: EB300 extra battery.

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 2EcoFlow RIVER 3 Max
Stored energy1024Wh572Wh (station + EB300)
Output power1800 W continuous AC output600 W continuous AC output
ChargingInput: 1200W maximum, recharge: 0–80% in 50 minutesInput: 650W maximum with connected extra battery
Ports4× UK AC outlets, 1800W combined3× UK AC outlets, 600W combined
FeaturesEps: Yes, transfer time: Within 30msUPS: Yes, transfer time: <10ms
ExpansionOne compatible DELTA 2, DELTA Max or DELTA 2 Max Smart Extra BatteryOne compatible EB300 or EB600 extra battery

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
BrandEcoFlowEcoFlow

Power Station

Power Station specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
Brand / ModelEcoFlow DELTA 2; DELTA 2EcoFlow RIVER 3 Max; EF-RV-H02-1 + EB300
Power Station TypePortable power stationPortable power station
Battery Capacity / ExpansionBase capacity: 1024Wh Expansion: One compatible DELTA 2, DELTA Max or DELTA 2 Max Smart Extra BatteryBase capacity: 572Wh (station + EB300) Expansion: One compatible EB300 or EB600 extra battery; up to 858Wh
Battery / Cycle LifeChemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacityChemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacity (0.5C charge/discharge, 25°C)

AC Power

AC Power specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
AC Output / SurgeContinuous: 1800W Surge: 2700WContinuous: 600W Surge: 1200W
High-Power ModeX-Boost: compatible resistive appliances up to 2400WX-Boost: compatible resistive appliances up to 1200W
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 Portable Power StationEcoFlow RIVER 3 Max
AC Outlets4× UK AC outlets; 1800W combined3× UK AC outlets; 600W combined
USB Outputs2× USB-A 12W per port, 24W total; 2× USB-A fast charging 18W per port, 36W total; 2× USB-C 100W per port, 200W totalStation: 2× USB-A 12W per port, 24W total; 1× USB-C 100W, PD 3.0 / QC 3.0; extra battery: 1× bidirectional USB-C 140W
DC / Vehicle OutputsCar socket: 12.6V / 10A, 126W; 2× DC5521: 12.6V / 3A, 38W per port; 126W shared DC outputCar socket: 12.6V / 10A, 126W
Other Outputs—USB-B HID communication port for PC / NAS backup management

Charging

Charging specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
AC ChargingInput: 1200W maximum Recharge: 0–80% in 50 minutesInput: 650W maximum with connected extra battery; station alone: 360W (UK) Recharge: Station alone: 0–100% in 60 minutes Voltage / frequency: 220–240V, 50Hz / 60Hz; 6A maximum
Solar ChargingPower: 500W maximum Voltage: 11–60V Current: 15A maximum MPPT: YesPower: 220W maximum Voltage: 11–55V Current: 13A maximum
Vehicle / Alternator Charging12V / 24V vehicle charging; 8A maximum12V / 24V vehicle charging; 11–55V input, 8A maximum; 220W maximum
Other / Combined ChargingOptional compatible EcoFlow Smart GeneratorExtra battery: bidirectional USB-C input up to 140W

Backup Power

Backup Power specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
UPS / BackupEps: Yes Transfer time: Within 30ms Pass through: YesUps: Yes Transfer time: <10ms Pass through: Yes
Home Backup / ExpansionOne compatible extra battery; expandable home backupWire-free physical connection to one EB300 or EB600 extra battery; HID backup management

Protection & Smart Features

Protection & Smart Features specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
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
Connectivity / Smart FeaturesWi-Fi; Bluetooth; EcoFlow app; LCD displayWi-Fi; Bluetooth; EcoFlow app; charging limits; charging schedules; LCD display

Physical & Package

Physical & Package specifications comparison
SpecificationEcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max
Dimensions / WeightDimensions: 400 × 211 × 281 mm Weight: 12 kgRIVER 3 Plus: 234 × 232 × 146 mm; 4.7 kg EB300: 234 × 224 × 110 mm; 3.5 kg
Portability / Noise / WarrantyPortability: Carry handles Warranty: 5-year UK manufacturer warrantyPortability: Carry handle; LED light Warranty: 5-year UK manufacturer warranty
In the BoxPower station, AC charging cable, user manual and warranty cardRIVER 3 Plus, EB300 extra battery, AC charging cable, USB-B-to-USB-A data cable, quick-start guide and safety / warranty documentation

Similarities

  • Both are rated for 3,000 charge cycles.
  • Both deliver up to 24 W in total.
  • Same power station type: portable power station.
  • Both are made by EcoFlow.

In summary

For most buyers the EcoFlow Delta 2 is the better buy; the EcoFlow RIVER 3 Max makes sense if price matters most, as it costs less.

Back to compared products ↑

In-stock alternatives

EcoFlow RIVER 3 Max PlusFor EcoFlow Delta 2 Portable Power StationEcoFlow RIVER 3 Max PlusView product ↗EcoFlow DELTA 3 Portable Power StationFor EcoFlow Delta 2 Portable Power StationEcoFlow DELTA 3 Portable Power StationView product ↗EcoFlow DELTA 2 Black E980 Portable Power StationFor EcoFlow RIVER 3 MaxEcoFlow DELTA 2 Black E980 Portable Power StationView product ↗EcoFlow RIVER 2 Max Portable Power StationFor EcoFlow RIVER 3 MaxEcoFlow RIVER 2 Max Portable Power StationView product ↗

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