Title
Title
Specification
| Basic Information | |
| Brand | UGREEN |
| Model | PB311 |
| MPN / Part Number | 25742 |
| Product Type | Fast Charging Power Bank |
| Battery Capacity | 10000mAh |
| Battery Energy | 37Wh |
| Battery Type | Li-Polymer |
| Charging | |
| USB-C Input | 5V/3A, 9V/2.22A, 12V/1.67A |
| USB-C Output | Up to 20W |
| USB-A Output | Up to 22.5W |
| Total Output | Up to 22.5W |
| Fast Charging | Yes |
| Two-Way Fast Charging | Yes |
| Ports | |
| USB-C Port | 1 × USB-C Input/Output |
| USB-A Port | 1 × USB-A Output |
| Charging Protocols | |
| USB-C Protocol | PD 3.0 / PD 2.0 / QC 3.0 / QC 2.0 |
| Other Protocols | FCP / AFC / Apple 5V2.4A / Samsung 5V2A / BC1.2 |
| Features | |
| Digital Battery Indicator | Yes |
| LED Indicator | Yes |
| Power Button | Yes |
| Protection | |
| Over-Voltage Protection | Supported |
| Over-Charging Protection | Supported |
| Over-Current Protection | Supported |
| Over-Temperature Protection | Supported |
| Short-Circuit Protection | Supported |
| Physical | |
| Color | Black |
| Body Material | Depends on market/retailer listing |
| Dimensions | Approx. 131.7 × 66 × 17mm* |
| Warranty Information | |
| Warranty | 1 Year Warranty |
Product Descriptions
UGREEN PB311 10000mAh 20W Fast Charging Power Bank
The UGREEN PB311 10000mAh 20W Fast Charging Power Bank is a convenient portable charging solution for users who need reliable backup power while travelling, working, commuting, or spending time away from a wall charger.
With a 10000mAh battery capacity (37Wh), the PB311 provides practical backup power for smartphones and other compatible USB-powered devices. It uses a rechargeable battery and supports fast charging technologies for quicker and more efficient charging.
20W USB-C Power Delivery
The USB-C port supports up to 20W output and can also be used to recharge the power bank. It supports charging standards including USB Power Delivery 3.0 and Quick Charge 3.0, making it compatible with many modern smartphones and portable devices.
Up to 22.5W USB-A Output
The USB-A port can deliver up to 22.5W under supported charging protocols. This provides additional compatibility for devices that use a traditional USB-A charging cable.
Two-Way USB-C Charging
The USB-C port works as both an input and output, allowing you to charge the power bank and compatible devices through the same USB-C interface. With a suitable 20W charger, the power bank can be recharged in approximately 3 hours according to published specifications.
Battery Level Indicator
An integrated LED digital battery indicator helps you monitor the remaining charge of the power bank so you can know when it needs to be recharged.
Multiple Safety Protections
The PB311 includes multiple protection mechanisms designed to help protect the power bank and connected devices against over-voltage, over-current, over-temperature, over-charging, and short-circuit conditions.
Portable Design
The compact design makes the UGREEN PB311 suitable for carrying in a backpack, laptop bag, handbag, or travel luggage. It is suitable for:
- Smartphones
- Tablets
- Wireless earbuds
- Bluetooth devices
- Smart watches
- USB-powered accessories
- Travel
- Office use
- Outdoor use
- Emergency backup charging
Warranty
1 Year Warranty — subject to the warranty terms provided by Rose Tech & Computer. Current Bangladesh listings commonly specify a 1-year warranty for this model
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