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Power station comparison

Anker 535 vs EcoFlow DELTA 3

Compare capacity, output, charging and portability.

Compared products
01Selected
Anker 535 Portable Power Station (512Wh, 500W)

Anker 535 Portable Power Station (512Wh, 500W)

  • 512 Wh base battery capacity.
  • 500 W continuous AC output.
  • 7,600 g.
  • AC charging: input: 120W via supplied AC adapter.
  • UPS / backup: pass through: Yes.
KSh 64,530Out of Stock
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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EcoFlow RIVER 3 Max PlusKSh 83,800
EcoFlow DELTA 2 Black E980 Portable Power StationKSh 61,800
EcoFlow RIVER 3 MaxKSh 66,700
EcoFlow Delta 2 Portable Power StationKSh 83,100
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
2 of 4 products

Our quick verdict

The EcoFlow DELTA 3 is the stronger choice: it has a larger 1,024 Wh battery, more output power (1,800 W continuous) and a higher 3,600 W surge rating, while the Anker 535 Portable Power Station is lighter (7.6 kg).

Output power

Anker 535 Portable Power Station
500 W continuous AC output
EcoFlow DELTA 3
1800 W continuous AC output

Weight

Anker 535 Portable Power Station
7.6 kg
EcoFlow DELTA 3
About 12,500 g

Stored energy

Anker 535 Portable Power Station
512 Wh base battery capacity
EcoFlow DELTA 3
1024Wh

Charging

Anker 535 Portable Power Station
120W via supplied AC adapter
EcoFlow DELTA 3
1500W maximum, recharge: 0–100% in 56 minutes

Ports

Anker 535 Portable Power Station
2× UK AC outlets, 500W combined
EcoFlow DELTA 3
4× UK AC outlets, 1800W combined

Key differences

The main differences to help you choose.

Anker 535 Portable Power Station

  • Lighter: 7.6 kg (vs 12.5 kg).

EcoFlow DELTA 3

  • Larger battery: 1,024 Wh (vs 512 Wh).
  • More continuous output: 1,800 W (vs 500 W).
  • Higher surge power: 3,600 W (vs 750 W).
  • Faster mains recharging: 1,500 W input (vs 120 W).
  • Accepts more solar power: 500 W (vs 120 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
PriorityAnker 535 Portable Power StationEcoFlow DELTA 3
Stored energy512 Wh base battery capacity1024Wh
Output power500 W continuous AC output1800 W continuous AC output
ChargingInput: 120W via supplied AC adapterInput: 1500W maximum, recharge: 0–100% in 56 minutes
Ports2× UK AC outlets, 500W combined4× UK AC outlets, 1800W combined
Weight7.6 kgAbout 12,500 g
FeaturesPass through: YesUPS: Yes, transfer time: <10ms

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
BrandAnkerEcoFlow

Power Station

Power Station specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
Brand / ModelAnker 535 Portable Power Station; A1751 / UK A1751211EcoFlow DELTA 3; EF-DL-H10-3
Power Station TypePortable power stationPortable power station
Battery Capacity / ExpansionBase capacity: 512WhBase 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 capacityChemistry: LiFePO₄ (LFP) Cycle life: 4000 cycles to 80%+ original capacity (0.5C charge/discharge, 25°C)

AC Power

AC Power specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
AC Output / SurgeContinuous: 500W Surge: 750WContinuous: 1800W Surge: 3600W
AC Voltage / Frequency / InverterVoltage: 230V Frequency: 50Hz Region: UKVoltage: 230V Frequency: 50Hz / 60Hz Inverter: Pure sine wave Region: UK
High-Power Mode—X-Boost: compatible resistive appliances up to 2400W

Outputs & Ports

Outputs & Ports specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
AC Outlets2× UK AC outlets; 500W combined4× UK AC outlets; 1800W combined
USB Outputs3× USB-A 12W; 1× bidirectional USB-C 60W2× 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: 12V / 10ACar socket: 12.6V / 10A, 126W; 2× DC5521: 12.6V / 3A, 38W per port; 126W shared DC output

Charging

Charging specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
AC ChargingInput: 120W via supplied AC adapterInput: 1500W maximum Recharge: 0–100% in 56 minutes Voltage / frequency: 220–240V, 50Hz / 60Hz; 10A maximum
Solar ChargingPower: 120W maximum Voltage: 11–28V Current: 10A maximum Mppt: YesPower: 500W maximum Voltage: 11–60V per input Current: 15A maximum per input
Vehicle / Alternator ChargingCar charging through supplied car cable and DC input12V vehicle charging; 8A maximum; optional EcoFlow 800W Alternator Charger
Other / Combined ChargingMethods: USB-C 60W input; supplied AC adapter + optional USB-C charger Maximum combined input: 180W Recharge: 0–80% in under 2.5 hours (AC adapter + USB-C)Methods: AC + solar; optional compatible EcoFlow Smart Generator Maximum combined input: 1500W (AC + solar)

Backup Power

Backup Power specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
UPS / BackupPass through: YesUps: Yes Transfer time: <10ms Pass through: Yes
Home Backup / Expansion—One compatible extra battery; expandable backup system

Protection & Smart Features

Protection & Smart Features specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
Battery Management / ProtectionBattery management system; voltage and temperature monitoring; temperature 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 pack
Connectivity / Smart FeaturesLCD: remaining battery, input/output power and estimated runtime; power-saving modeWi-Fi; Bluetooth; EcoFlow app; time-of-use charging; storm warnings

Physical & Package

Physical & Package specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 3 Portable Power Station
Dimensions / WeightDimensions: 291.6 × 251 × 188 mm Weight: 7.6 kgDimensions (W × D × H): 202 × 397.6 × 283.6 mm Weight: approximately 12.5 kg
Portability / Noise / WarrantyPortability: Carry handle; LED light bar Warranty: 5-year UK manufacturer warrantyPortability: Carry handles Noise: <30dB at 600W; <40dB at 1200W Warranty: 5-year UK manufacturer warranty
In the BoxAnker 535, 120W AC adapter, car charging cable and user manualPower station, AC charging cable, user manual and warranty card

Similarities

  • Same power station type: portable power station.

In summary

For most buyers the EcoFlow DELTA 3 is the better buy; the Anker 535 Portable Power Station makes sense if you want a lighter build.

Back to compared products ↑

In-stock alternatives

EcoFlow RIVER 3 MaxFor Anker 535 Portable Power Station (512Wh, 500W)EcoFlow RIVER 3 MaxView product ↗EcoFlow DELTA 2 Black E980 Portable Power StationFor Anker 535 Portable Power Station (512Wh, 500W)EcoFlow DELTA 2 Black E980 Portable Power StationView product ↗EcoFlow RIVER 3 Max PlusFor EcoFlow DELTA 3 Portable Power StationEcoFlow RIVER 3 Max PlusView product ↗EcoFlow Delta 2 Portable Power StationFor EcoFlow DELTA 3 Portable Power StationEcoFlow Delta 2 Portable Power StationView product ↗

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