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Power bank comparison

Xiaomi 33W Power Bank 20000mAh vs Promate BOLT-20PD

Compare capacity, charging speed, ports and weight.

Compared products
01Selected
Xiaomi 33W Power Bank 20000mAh

Xiaomi 33W Power Bank 20000mAh

  • 20,000 mAh battery capacity.
  • 33 W rated output.
  • Input profiles: integrated USB-C / USB-C: 5V/3A, 9V/2.5A, 12V/2.5A.
  • Input ports: integrated USB-C cable.
KSh 4,750In Stock
02
Promate BOLT-20PD

Promate BOLT-20PD

  • 20,000 mAh battery capacity.
  • 420 g.
  • Total: up to 20W.
  • Power-bank charging time: 7–13 hours.
  • Input profiles: USB-C2: 5V / 3A, 9V / 2.22A.
KSh 5,000In Stock

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2 of 4 products

Our quick verdict

The Xiaomi 33W Power Bank 20000mAh is the better buy: it has 2 charging ports, with the same 20,000 mAh battery as the Promate BOLT-20PD.

Output power

Xiaomi 33W Power Bank 20000mAh
33 W rated output
Promate BOLT-20PD
Total: up to 20W

Ports

Xiaomi 33W Power Bank 20000mAh
2 output ports
Promate BOLT-20PD
1 output port

Key differences

The main differences to help you choose.

Xiaomi 33W Power Bank 20000mAh

  • More ports: 2 (vs 1).
  • Built-in cable.

Promate BOLT-20PD

  • 20,000 mAh battery.
  • Total: up to 20W.
  • Weighs 420 g.

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.

4 priorities selected.
How each product answers the selected priorities
PriorityXiaomi 33W Power Bank 20000mAhPromate BOLT-20PD
Battery life20,000 mAh battery20,000 mAh battery
Output power33 W rated outputTotal: up to 20W
Ports2 output ports1 output port
Input profilesIntegrated USB-C / USB-C: 5V/3A, 9V/2.5A, 12V/2.5AUSB-C2: 5V / 3A, 9V / 2.22A, 12V / 1.67A

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationXiaomi 33W Power Bank 20000mAhPromate BOLT-20PD
BrandXiaomiPromate
Model57865 / 58248BOLT-20PD
Battery capacity20000mAh typical20,000 mAh
Rated capacity12000mAh at 5V/3A—
Rated energy74Wh rated; 75.48Wh typical74Wh
Maximum output power33WUSB-C: up to 20W; USB-A: up to 22.5W individually; combined total: up to 20W
Input portsIntegrated USB-C cable; 1 x USB-CUSB-C2
Output portsIntegrated USB-C cable; 1 x USB-C; 1 x USB-ATwo USB-C ports; USB-A
Input profilesIntegrated USB-C / USB-C: 5V/3A, 9V/2.5A, 12V/2.5AUSB-C2: 5V / 3A, 9V / 2.22A, 12V / 1.67A; 20W maximum
Output profilesIntegrated USB-C / USB-C: 5V/3A, 9V/3A, 11V/3A, 12V/2.5A, 15V/2A, 20V/1.5A; USB-A: 5V/3A, 9V/2.23A, 10V/2.25A, 12V/1.67AUSB-C1 / C2 individually: 5V / 3A, 9V / 2.22A, 12V / 1.67A; 20W maximum. USB-A: 5V / 4.5A, 9V / 2A, 12V / 1.5A; 22.5W maximum. Combined total: 20W maximum
Integrated cableYes - USB-C—
Supplied CODE58248—
Manufacturer hardware modelPB2030MI—
Cell capacity20000mAh typical—
Rated output capacity12000mAh at 5V/3A—
Battery energy74Wh rated; 75.48Wh typical—
FinishBlue—
Package contentspower bank and user manual—
Power-bank charging time—7–13 hours; depends on charger and charging conditions
Battery Type—Li-Polymer
Charging Cable Length—20cm
Display and protection—LCD battery-status display; overcharging and overheating protection

Design

Design specifications comparison
SpecificationXiaomi 33W Power Bank 20000mAhPromate BOLT-20PD
Dimensions127 × 70.5 × 30.5mm—
Weight—420g

Similarities

  • Both have 20,000 mAh batteries.
  • Both charge over USB-C.

In summary

The Xiaomi 33W Power Bank 20000mAh is the better buy for almost everyone, with 2 charging ports.

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