Output power
- Xiaomi 33W Power Bank 20000mAh
- 33 W rated output
- Promate BOLT-20PD
- Total: up to 20W
Power bank comparison
Compare capacity, charging speed, ports and weight.
01Selected ![]() Xiaomi 33W Power Bank 20000mAh
KSh 4,750In Stock | 02 ![]() Promate BOLT-20PD
KSh 5,000In Stock |
|---|







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.
The main differences to help you choose.
| Priority | Xiaomi 33W Power Bank 20000mAh | Promate BOLT-20PD |
|---|---|---|
| Battery life | 20,000 mAh battery | 20,000 mAh battery |
| Output power | 33 W rated output | Total: up to 20W |
| Ports | 2 output ports | 1 output port |
| Input profiles | Integrated USB-C / USB-C: 5V/3A, 9V/2.5A, 12V/2.5A | USB-C2: 5V / 3A, 9V / 2.22A, 12V / 1.67A |
Tick a topic above to see how each product answers it.
Explore the full specifications, section by section.
| Specification | Xiaomi 33W Power Bank 20000mAh | Promate BOLT-20PD |
|---|---|---|
| Brand | Xiaomi | Promate |
| Model | 57865 / 58248 | BOLT-20PD |
| Battery capacity | 20000mAh typical | 20,000 mAh |
| Rated capacity | 12000mAh at 5V/3A | — |
| Rated energy | 74Wh rated; 75.48Wh typical | 74Wh |
| Maximum output power | 33W | USB-C: up to 20W; USB-A: up to 22.5W individually; combined total: up to 20W |
| Input ports | Integrated USB-C cable; 1 x USB-C | USB-C2 |
| Output ports | Integrated USB-C cable; 1 x USB-C; 1 x USB-A | Two USB-C ports; USB-A |
| Input profiles | Integrated USB-C / USB-C: 5V/3A, 9V/2.5A, 12V/2.5A | USB-C2: 5V / 3A, 9V / 2.22A, 12V / 1.67A; 20W maximum |
| Output profiles | Integrated 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/1.67A | USB-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 cable | Yes - USB-C | — |
| Supplied CODE | 58248 | — |
| Manufacturer hardware model | PB2030MI | — |
| Cell capacity | 20000mAh typical | — |
| Rated output capacity | 12000mAh at 5V/3A | — |
| Battery energy | 74Wh rated; 75.48Wh typical | — |
| Finish | Blue | — |
| Package contents | power 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 |
| Specification | Xiaomi 33W Power Bank 20000mAh | Promate BOLT-20PD |
|---|---|---|
| Dimensions | 127 × 70.5 × 30.5mm | — |
| Weight | — | 420g |
These products have the same published specifications.
The Xiaomi 33W Power Bank 20000mAh is the better buy for almost everyone, with 2 charging ports.
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