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Power station comparison

Anker 535 vs EcoFlow Delta 2

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 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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EcoFlow RIVER 3 Max PlusKSh 83,800
EcoFlow DELTA 2 Black E980 Portable Power StationKSh 61,800
EcoFlow RIVER 3 MaxKSh 66,700
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
Powerology 600w portable generator - (192000mAh)KSh 85,000
2 of 4 products

Our quick verdict

The EcoFlow Delta 2 is the stronger choice: it has a larger 1,024 Wh battery, more output power (1,800 W continuous) and a higher 2,700 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 2
1800 W continuous AC output

Weight

Anker 535 Portable Power Station
7.6 kg
EcoFlow Delta 2
12 kg

Stored energy

Anker 535 Portable Power Station
512 Wh base battery capacity
EcoFlow Delta 2
1024Wh

Charging

Anker 535 Portable Power Station
120W via supplied AC adapter
EcoFlow Delta 2
1200W maximum, recharge: 0–80% in 50 minutes

Ports

Anker 535 Portable Power Station
2× UK AC outlets, 500W combined
EcoFlow Delta 2
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 kg).

EcoFlow Delta 2

  • Larger battery: 1,024 Wh (vs 512 Wh).
  • More continuous output: 1,800 W (vs 500 W).
  • Higher surge power: 2,700 W (vs 750 W).
  • Faster mains recharging: 1,200 W input (vs 120 W).
  • Accepts more solar power: 500 W (vs 120 W).
  • More AC outlets: 4 (vs 2).

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 2
Stored energy512 Wh base battery capacity1024Wh
Output power500 W continuous AC output1800 W continuous AC output
ChargingInput: 120W via supplied AC adapterInput: 1200W maximum, recharge: 0–80% in 50 minutes
Ports2× UK AC outlets, 500W combined4× UK AC outlets, 1800W combined
Weight7.6 kg12 kg
FeaturesPass through: YesEps: Yes, transfer time: Within 30ms

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow Delta 2 Portable Power Station
BrandAnkerEcoFlow

Power Station

Power Station specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow Delta 2 Portable Power Station
Brand / ModelAnker 535 Portable Power Station; A1751 / UK A1751211EcoFlow DELTA 2; DELTA 2
Power Station TypePortable power stationPortable power station
Battery Capacity / ExpansionBase capacity: 512WhBase capacity: 1024Wh Expansion: One compatible DELTA 2, DELTA Max or DELTA 2 Max Smart Extra Battery
Battery / Cycle LifeChemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacityChemistry: LiFePO₄ (LFP) Cycle life: 3000 cycles to 80%+ original capacity

AC Power

AC Power specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow Delta 2 Portable Power Station
AC Output / SurgeContinuous: 500W Surge: 750WContinuous: 1800W Surge: 2700W
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 2 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 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 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 2 Portable Power Station
AC ChargingInput: 120W via supplied AC adapterInput: 1200W maximum Recharge: 0–80% in 50 minutes
Solar ChargingPower: 120W maximum Voltage: 11–28V Current: 10A maximum Mppt: YesPower: 500W maximum Voltage: 11–60V Current: 15A maximum MPPT: Yes
Vehicle / Alternator ChargingCar charging through supplied car cable and DC input12V / 24V vehicle charging; 8A maximum
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)Optional compatible EcoFlow Smart Generator

Backup Power

Backup Power specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow Delta 2 Portable Power Station
UPS / BackupPass through: YesEps: Yes Transfer time: Within 30ms Pass through: Yes
Home Backup / Expansion—One compatible extra battery; expandable home backup

Protection & Smart Features

Protection & Smart Features specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow Delta 2 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
Connectivity / Smart FeaturesLCD: remaining battery, input/output power and estimated runtime; power-saving modeWi-Fi; Bluetooth; EcoFlow app; LCD display

Physical & Package

Physical & Package specifications comparison
SpecificationAnker 535 Portable Power Station (512Wh, 500W)EcoFlow Delta 2 Portable Power Station
Dimensions / WeightDimensions: 291.6 × 251 × 188 mm Weight: 7.6 kgDimensions: 400 × 211 × 281 mm Weight: 12 kg
Portability / Noise / WarrantyPortability: Carry handle; LED light bar Warranty: 5-year UK manufacturer warrantyPortability: Carry handles 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

  • Both are rated for 3,000 charge cycles.
  • Same power station type: portable power station.

In summary

For most buyers the EcoFlow Delta 2 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 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 ↗

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