1. Product Overview
The JONKUU Portable Charger 10000mAh is a slim, lightweight external battery pack designed for fast charging of various smart devices. It features a 22.5W fast charge capability, PD3.0 & QC4.0 support, and a convenient USB C in/out port. Its compact design makes it ideal for travel and on-the-go power needs.
This power bank is equipped with an LCD digital display that accurately shows the remaining battery percentage, eliminating guesswork about when to recharge. It also incorporates 8 layers of multiple system protection, including safeguards against over-charge, over-discharge, short circuit, and high temperature, ensuring the safety of your devices.

Figure 1: JONKUU Portable Charger 10000mAh Power Bank. This image displays the JONKUU Portable Charger 10000mAh Power Bank in its dark green color. The front features a sleek, glossy panel with a digital LCD display indicating a 100% charge and a '22.5W Super Fast Charge' label. The device has a compact, rectangular shape with rounded edges.
2. Setup
Before first use, it is recommended to fully charge your JONKUU Portable Charger. This ensures optimal battery performance and longevity.
2.1 What's Included
- 1 x 10000mAh Portable Charger Power Bank
- 1 x USB Cable (Type-C)
- 1 x User Manual
2.2 Initial Charging
- Connect the provided USB Type-C cable to the USB-C input/output port on the power bank.
- Connect the other end of the USB Type-C cable to a compatible USB wall adapter (not included). For faster charging, use a 20W PD compatible adapter.
- The LCD digital display will show the charging progress, indicating the battery percentage.
- Once the display shows 100%, the power bank is fully charged and ready for use. A full recharge typically takes about 6 hours with a quick adapter.
3. Operating Instructions
3.1 Charging Your Devices
The JONKUU Portable Charger features 2 USB-A output ports and 1 USB-C input/output port, allowing you to charge up to three devices simultaneously.
- Connect your device's charging cable to one of the available output ports (USB-A or USB-C) on the power bank.
- Connect the other end of the cable to your device.
- The power bank will automatically detect your device and begin charging. The LCD display will show the remaining battery level.
- To check the battery level at any time, briefly press the power button located on the side of the power bank.
The power bank supports 22.5W PD 3.0 & QC 4.0 fast charging, enabling rapid power delivery to compatible devices. For example, it can charge an iPhone 14 from 0% to 60% in approximately 30 minutes.
3.2 Power Button Functionality
A short press of the power button activates the LCD display to show the current battery percentage. The display will automatically turn off after a few seconds to conserve power.
4. Maintenance
- Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Use a soft, dry cloth to clean the surface of the power bank. Avoid using harsh chemicals or abrasive materials.
- Battery Care: To prolong battery life, avoid fully discharging the power bank regularly. Recharge it when the battery level is low.
- Avoid Impact: Do not drop or subject the power bank to strong impacts, as this may damage internal components.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Cable issue, adapter issue, or power bank fault. | Try a different USB cable or wall adapter. Ensure connections are secure. If the issue persists, contact customer support. |
| Device not charging from power bank | Power bank low on charge, incorrect cable, or device incompatibility. | Ensure the power bank is sufficiently charged. Use the correct charging cable for your device. Verify device compatibility with the power bank's output specifications. |
| Slow charging | Non-fast charging cable/adapter, or multiple devices charging. | Use a fast-charging compatible cable and adapter. Charging multiple devices simultaneously may reduce individual charging speeds. |
| LCD display not working | Power bank is off or a malfunction. | Press the power button to activate the display. If it remains unresponsive, the unit may be faulty. |
6. Specifications
- Battery Type: Lithium-Ion battery cell
- Capacity: 10000mAh
- Dimensions: 5.5 x 2.5 x 0.51 inches (141 x 68 x 1.6 mm)
- Weight: 8.1 ounces (230g)
- USB-C Input/Output: 20W
- USB-A Output Ports: 22.5W (2 ports)
- Special Features: Over Charging Protection, Pocket Size, Sleek Design, USB C Input&Output, Portable Charger Fast Charging 22.5W, Slim, Universal Compatibility, Large LCD Digital Display.
- Manufacturer: JONKUU
- Model Number: R2
7. Warranty and Support
JONKUU provides lifetime technology support for this product. Enjoy 3 years of no-worry support and care, along with 24-hour service for any questions or concerns you may have. Please contact us directly for assistance.
For further assistance or warranty claims, please refer to the contact information provided in your product packaging or visit the official JONKUU website.





