XIAOMI PB9303
XIAOMI Magnetic Power Bank 5000mAh
Instruction Manual
Model: PB9303
Introduction
The XIAOMI Magnetic Power Bank 5000mAh is a versatile and portable charging solution designed for modern smartphones. It offers both magnetic wireless charging for MagSafe-compatible devices and wired fast charging via USB-C. Its slim profile and robust safety features make it an ideal companion for daily use and travel.
Key features include strong magnetic attachment, automatic wireless charging, 18W wired fast charging, simultaneous dual-device charging, a slim 12mm body, and comprehensive safety protections.
Setup
Before initial use, it is recommended to fully charge your XIAOMI Magnetic Power Bank.
- Unboxing: Carefully remove the power bank and any included accessories from the packaging.
- Initial Charging of Power Bank: Connect the power bank to a power source using a USB-C cable and a compatible power adapter (20W or higher recommended for fastest charging). The power bank will indicate its charging status, typically via an LED indicator. A full charge takes approximately 2.2 hours with a 20W input.
- First Use: Once fully charged, the power bank is ready for use.

Image: The power bank's USB-C port for two-way fast charging. This port is used to recharge the power bank itself and to provide wired charging to other devices.
Operating Instructions
Magnetic Wireless Charging
The power bank features strong magnetic attraction for seamless wireless charging with MagSafe-compatible iPhones (iPhone 12 series and later). It automatically begins charging upon attachment.
- Align and Attach: Simply align the power bank with the back of your MagSafe-compatible iPhone. The magnets will securely snap it into place.
- Automatic Charging: Wireless charging will commence automatically once a secure magnetic connection is established. No buttons are required.
- Case Compatibility: The magnetic attachment and wireless charging function through most magnetic cases.

Image: Demonstration of the strong and stable magnetic attraction, showing the power bank securely attaching to a smartphone for wireless charging.

Image: The 12mm slim body of the power bank, designed to fit tightly against the phone without obstructing the camera lens.
Wired Charging
For devices not compatible with magnetic wireless charging, or for faster charging, use the USB-C port.
- Connect Device: Use a USB-C to USB-C cable (or appropriate cable for your device) to connect your smartphone or other compatible device to the power bank's USB-C port.
- Fast Charging: The power bank delivers up to 18W wired fast charging.
- Simultaneous Charging: The power bank supports charging two devices simultaneously (one wirelessly, one wired) with a total output of 10W.
Power Bank Recharging and Pass-Through Function
The power bank itself can be recharged quickly, and it features a convenient pass-through charging function.
- Recharging the Power Bank: Connect the power bank's USB-C port to a power adapter. It recharges in approximately 2.2 hours with a 20W input.
- Pass-Through Charging: The unique "charge-through" function allows the power bank to recharge itself while simultaneously wirelessly charging your phone. This means you can charge both devices overnight using a single power adapter.

Image: The power bank demonstrating its pass-through charging capability, recharging itself while simultaneously wirelessly charging a smartphone.
Maintenance
Proper care and maintenance will ensure the longevity and optimal performance of your power bank.
- Cleaning: Use a soft, dry cloth to clean the surface of the power bank. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the power bank in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Battery Health: For optimal battery health, avoid fully discharging the power bank frequently. Recharge it when the charge level is low.
- Safety Precautions:
The power bank is equipped with 9 safety protections to ensure safe operation:
- Temperature protection
- Short-circuit protection
- Reset protection
- Input overvoltage protection
- Input overcurrent protection
- Output overcurrent protection
- Output overvoltage protection
- Over-charge and over-discharge protection
- Metal FOD (Foreign Object Detection)

Image: Visual representation of the 9 safety features integrated into the power bank for secure and reliable charging.

Image: Illustration of the NTC temperature control system, which intelligently monitors and adjusts temperature to prevent damage during charging.
Troubleshooting
If you encounter issues with your power bank, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Cable or adapter issue; power bank fully discharged; faulty port. | Try a different USB-C cable and power adapter. Ensure the adapter meets the recommended specifications (20W). Allow a few minutes for the power bank to respond if deeply discharged. |
| Device not charging wirelessly | Misalignment; non-MagSafe compatible device; foreign object; thick case. | Ensure proper alignment of the power bank with the phone's charging coil. Confirm your device is MagSafe-compatible. Remove any foreign objects between the power bank and phone. Try removing the phone case if it's not a magnetic case. |
| Slow charging | Low power adapter; cable quality; device drawing less power. | Use a power adapter that supports 20W PD for recharging the power bank. Use a high-quality USB-C cable. Note that some devices may limit charging speed. |
| Magnetic attachment is weak | Non-magnetic case; foreign objects. | Ensure your phone case is MagSafe-compatible or remove it for direct attachment. Remove any debris or foreign objects. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | PB9303 |
| Battery Capacity | 5000 Milliamp Hours |
| Product Dimensions | 4.08 x 2.69 x 0.47 inches |
| Item Weight | 7 ounces |
| Connector Type | USB Type C |
| Special Features | Pocket Size, Slim, Wireless Charging, Magnetic Attachment, 18W PD Fast Charging, Pass-Through Charging |
| Manufacturer | Xiaomi Communications Co., Ltd. |
| Color | White |

Image: Rear view of the power bank displaying its model number, capacity, and various certifications, including the serial number.
Warranty and Support
XIAOMI products are manufactured to high quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official XIAOMI support website.
For technical support, troubleshooting assistance, or warranty claims, please contact XIAOMI customer service through their official channels. Keep your purchase receipt as proof of purchase for warranty purposes.
Manufacturer: Xiaomi Communications Co., Ltd.
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