A high-power power bank should offer more than an impressive wattage number. Importers and private-label brands must also evaluate port performance, battery energy, recharge speed, cable capability and product documentation.
UUTEK PB221 combines a 25,000mAh battery, 100W USB-C output, 60W input, built-in retractable USB-C cable and smart TFT display in a compact tube-shaped design.
PB221 Key Specifications
Item | Specification |
Battery capacity | 25,000mAh: five 5,000mAh cells |
Rated energy | 92.5Wh |
Maximum USB-C output | 100W: 20V⎓5A |
Built-in cable output | Up to 60W: 20V⎓3A |
USB-A output | Up to 30W: 20V⎓1.5A |
USB-C input | Up to 60W |
Built-in cable input | Up to 60W |
Outputs | USB-C × 1, USB-C cable × 1, USB-A × 1 |
Inputs | USB-C × 1, USB-C cable × 1 |
Dimensions | 157 × 52.9 × 54.3mm |
Net weight | 527g |
Material | ABS + V-0-rated PC |
Display | Smart TFT charging-status display |
Specified utilization rate | ≥70% |
1. 100W USB-C Output for Laptops and Mobile Devices
The main USB-C port supports up to 100W output at 20V⎓5A, making PB221 suitable for many USB-C laptops, tablets, drones, smartphones and other portable devices.
The output protocols include:
· PD 2.0 and PD 3.0
· PPS
· QC 2.0 and QC 3.0
· FCP
· AFC
· SCP
Actual charging speed depends on the connected device, cable and supported charging protocol.
For wholesale listings, buyers should clearly distinguish between the three outputs:
· USB-C port: up to 100W
· Built-in USB-C cable: up to 60W
· USB-A port: up to 30W
The simultaneous multi-port power allocation should be confirmed before publishing claims about charging several high-power devices at the same time.
2. 25,000mAh Capacity with a 92.5Wh Rating
PB221 uses five 5,000mAh cells for a total advertised capacity of 25,000mAh and 92.5Wh.
This capacity is designed for buyers targeting:
· Business travellers
· Laptop users
· Mobile professionals
· Outdoor users
· Drone and camera users
· High-capacity charging markets
The product’s 92.5Wh marking makes it easier for travellers to check the applicable battery limits. However, power-bank rules may vary by airline, country and route. Buyers should avoid using absolute claims such as “airline approved” or “allowed on every flight.”
A safer product statement is:
92.5Wh rated energy. Please check the applicable airline and local travel requirements before departure.
3. 60W Fast Recharging
Both the USB-C port and built-in USB-C cable support input up to:
5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A and 20V⎓3A
This provides a maximum input power of 60W, reducing the recharge time compared with conventional low-power inputs.
Supported input protocols include PD 3.0, QC 2.0/3.0, FCP and AFC.
Recharge-time claims should always identify the charger, cable, starting battery level and test conditions.
4. Built-In Retractable USB-C Cable
The retractable USB-C cable supports both input and output, so users do not need to carry a separate charging cable for most daily situations.
Its maximum output is 60W, while the dedicated USB-C port provides the full 100W output.
For sample approval, buyers should evaluate:
· Cable extension and retraction
· Connector fit
· Cable flexibility
· Pulling resistance
· Charging stability
· Long-term bending performance
Any bend-cycle or load-bearing claim should be supported by a defined test report.
5. Smart TFT Display and Compact Tube Design
The TFT display provides clearer charging-status information than a basic percentage indicator.
PB221 measures 157 × 52.9 × 54.3mm and weighs 527g. Its tube-shaped housing uses a fine metallic-look painted finish, creating a more distinctive appearance than a conventional rectangular power bank.
The housing is specified as ABS combined with V-0-rated PC material. The V-0 wording should only be used in published materials after the relevant material documentation has been verified.
What Importers Should Confirm Before Ordering
Before approving PB221 for wholesale, OEM or private-label use, request:
1. Complete single-port and multi-port power-allocation tables
2. Battery, safety and transport documents for the exact model
3. Confirmation of the 92.5Wh product label
4. Built-in cable durability and charging test results
5. TFT display functions and interface details
6. Available logo, color and packaging options
7. Current MOQ, sample terms, price and production lead time
Frequently Asked Questions
Can PB221 provide a full 100W through the built-in cable?
No. The main USB-C port supports up to 100W, while the built-in USB-C cable supports up to 60W output.
Can PB221 charge a laptop?
It can charge many laptops that support compatible USB-C PD input. Actual performance depends on the laptop’s required voltage, wattage and charging protocol.
Is PB221 allowed on an aircraft?
PB221 has a rated energy of 92.5Wh. Travel requirements vary, so users should confirm the latest rules with the relevant airline before departure and carry the power bank according to applicable regulations.
What is the maximum input power?
Both the USB-C port and built-in USB-C cable support up to 60W input.
Request PB221 Technical Information
Looking for a high-capacity laptop power bank for wholesale, OEM or private-label distribution?
Contact UUTEK to request the latest PB221 specification, power-allocation table, available compliance documents, sample terms and customization options.