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Power station comparison

EcoFlow RIVER 3 Max vs EcoFlow DELTA 3

Compare capacity, output, charging and portability.

Compared products
01Selected
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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02
EcoFlow DELTA 3 Portable Power Station

EcoFlow DELTA 3 Portable Power Station

  • 1800 W continuous AC output.
  • About 12,500 g.
  • Base capacity: 1024Wh.
  • Expansion: one compatible DELTA 2, DELTA 2 Max.
  • AC charging: input: 1500W maximum.
KSh 95,000In Stock
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2 spaces available

EcoFlow RIVER 3 Max PlusKSh 83,800
Anker 535 Portable Power Station (512Wh, 500W)KSh 64,530
EcoFlow RIVER 2 Max Portable Power StationKSh 49,500
EcoFlow RIVER Pro Portable Power StationKSh 79,000
EcoFlow RIVER 2 Pro Portable Power StationKSh 58,000
EcoFlow Delta 2 Portable Power StationKSh 83,100
Powerology 600w portable generator - (192000mAh)KSh 85,000
2 of 4 products

Our quick verdict

The EcoFlow DELTA 3 has a larger 1,024 Wh battery, more output power (1,800 W continuous) and a higher 3,600 W surge rating, while the EcoFlow RIVER 3 Max costs KSh 28,300 less.

Output power

EcoFlow RIVER 3 Max
600 W continuous AC output
EcoFlow DELTA 3
1800 W continuous AC output

Stored energy

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

Charging

EcoFlow RIVER 3 Max
650W maximum with connected extra battery
EcoFlow DELTA 3
1500W maximum, recharge: 0–100% in 56 minutes

Ports

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

Expansion

EcoFlow RIVER 3 Max
One compatible EB300 or EB600 extra battery
EcoFlow DELTA 3
One compatible DELTA 2, DELTA 2 Max

Key differences

The main differences to help you choose.

EcoFlow RIVER 3 Max

  • Lower price: KSh 66,700 (vs KSh 95,000).
  • Also in the box: EB300 extra battery.

EcoFlow DELTA 3

  • Larger battery: 1,024 Wh (vs 572 Wh).
  • More continuous output: 1,800 W (vs 600 W).
  • Higher surge power: 3,600 W (vs 1,200 W).
  • Faster mains recharging: 1,500 W input (vs 650 W).
  • Accepts more solar power: 500 W (vs 220 W).
  • Rated for more charge cycles: 4,000 (vs 3,000).

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 RIVER 3 MaxEcoFlow DELTA 3
Stored energy572Wh (station + EB300)1024Wh
Output power600 W continuous AC output1800 W continuous AC output
ChargingInput: 650W maximum with connected extra batteryInput: 1500W maximum, recharge: 0–100% in 56 minutes
Ports3× UK AC outlets, 600W combined4× UK AC outlets, 1800W combined
ExpansionOne compatible EB300 or EB600 extra batteryOne compatible DELTA 2, DELTA 2 Max
Home backup / expansionWire-free physical connection to one EB300 or EB600 extra batteryOne compatible extra battery, expandable backup system

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
BrandEcoFlowEcoFlow

Power Station

Power Station specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
Brand / ModelEcoFlow RIVER 3 Max; EF-RV-H02-1 + EB300EcoFlow DELTA 3; EF-DL-H10-3
Power Station TypePortable power stationPortable power station
Battery Capacity / ExpansionBase capacity: 572Wh (station + EB300) Expansion: One compatible EB300 or EB600 extra battery; up to 858WhBase capacity: 1024Wh Expansion: One compatible DELTA 2, DELTA 2 Max, DELTA 3 or DELTA Pro 3 extra battery; up to 5kWh
Battery / Cycle LifeChemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacity (0.5C charge/discharge, 25°C)Chemistry: LiFePO₄ (LFP) Cycle life: 4000 cycles to 80%+ original capacity (0.5C charge/discharge, 25°C)

AC Power

AC Power specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
AC Output / SurgeContinuous: 600W Surge: 1200WContinuous: 1800W Surge: 3600W
High-Power ModeX-Boost: compatible resistive appliances up to 1200WX-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 RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
AC Outlets3× UK AC outlets; 600W combined4× UK AC outlets; 1800W combined
USB OutputsStation: 2× USB-A 12W per port, 24W total; 1× USB-C 100W, PD 3.0 / QC 3.0; extra battery: 1× bidirectional USB-C 140W2× USB-A: 18W per port, 36W total; 2× USB-C: 100W per port, 200W total; USB-C PD 3.0 / QC 3.0 / UFCS 36W
DC / Vehicle OutputsCar socket: 12.6V / 10A, 126WCar socket: 12.6V / 10A, 126W; 2× DC5521: 12.6V / 3A, 38W per port; 126W shared DC output
Other OutputsUSB-B HID communication port for PC / NAS backup management—

Charging

Charging specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
AC ChargingInput: 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 maximumInput: 1500W maximum Recharge: 0–100% in 56 minutes Voltage / frequency: 220–240V, 50Hz / 60Hz; 10A maximum
Solar ChargingPower: 220W maximum Voltage: 11–55V Current: 13A maximumPower: 500W maximum Voltage: 11–60V per input Current: 15A maximum per input
Vehicle / Alternator Charging12V / 24V vehicle charging; 11–55V input, 8A maximum; 220W maximum12V vehicle charging; 8A maximum; optional EcoFlow 800W Alternator Charger
Other / Combined ChargingExtra battery: bidirectional USB-C input up to 140WMethods: AC + solar; optional compatible EcoFlow Smart Generator Maximum combined input: 1500W (AC + solar)

Backup Power

Backup Power specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
UPS / BackupUps: Yes Transfer time: <10ms Pass through: YesUps: Yes Transfer time: <10ms Pass through: Yes
Home Backup / ExpansionWire-free physical connection to one EB300 or EB600 extra battery; HID backup managementOne compatible extra battery; expandable backup system

Protection & Smart Features

Protection & Smart Features specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 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; charging limits; charging schedules; LCD displayWi-Fi; Bluetooth; EcoFlow app; time-of-use charging; storm warnings

Physical & Package

Physical & Package specifications comparison
SpecificationEcoFlow RIVER 3 MaxEcoFlow DELTA 3 Portable Power Station
Dimensions / WeightRIVER 3 Plus: 234 × 232 × 146 mm; 4.7 kg EB300: 234 × 224 × 110 mm; 3.5 kgDimensions (W × D × H): 202 × 397.6 × 283.6 mm Weight: approximately 12.5 kg
Portability / Noise / WarrantyPortability: Carry handle; LED light Warranty: 5-year UK manufacturer warrantyPortability: Carry handles Noise: <30dB at 600W; <40dB at 1200W Warranty: 5-year UK manufacturer warranty
In the BoxRIVER 3 Plus, EB300 extra battery, AC charging cable, USB-B-to-USB-A data cable, quick-start guide and safety / warranty documentationPower station, AC charging cable, user manual and warranty card

Similarities

  • Same power station type: portable power station.
  • Same UPS / backup: ups: Yes.
  • Both are made by EcoFlow.

In summary

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

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