BBD KR-W0021
BBD Magnetic Power Bank User Manual
Model: KR-W0021
1. Product Overview
The BBD Magnetic Power Bank is a compact and powerful portable charger designed for convenience and efficiency. With a 12000mAh capacity, it provides multiple charges for your devices, supporting both 20W wired fast charging via USB-C and 15W wireless magnetic fast charging for compatible iPhone models.

Image: The BBD Magnetic Power Bank in black, shown wirelessly charging an iPhone, highlighting its magnetic attachment and charging indicator.
- 12000mAh Capacity: Provides multiple charges for smartphones and other small devices.
- Magnetic Fast Charging: Supports 15W wireless magnetic charging for iPhone 12/13/14/15/16 series.
- 20W Wired Fast Charging: Universal USB-C port for both input and output.
- Superior Safety: Built-in multi-safety system protects against overcharging, overvoltage, overcurrent, overheating, and short-circuiting.
- Ultra-Slim Design: Measures 4 x 2.7 x 0.6 inches and weighs 7 ounces, making it highly portable.

Image: The BBD Magnetic Power Bank shown fitting easily into a pant pocket, demonstrating its ultra-slim and portable design.
2. Package Contents
Please check the package to ensure all items are present:
- 1 x BBD 12000mAh Magnetic Power Bank
- 1 x USB-C to USB-C Cable
- 1 x Instruction Manual
3. Setup
3.1 Initial Charging of the Power Bank
Before first use, fully charge your BBD Magnetic Power Bank. Connect the supplied USB-C to USB-C cable to the power bank's USB-C port and plug the other end into a compatible USB wall adapter (not included). The LED indicators on the power bank will illuminate to show the charging progress.
3.2 Device Compatibility
This power bank is primarily designed for iPhone 12, 13, 14, 15, and 16 series models for magnetic wireless charging. The USB-C port provides universal compatibility for charging other smartphones, tablets, headphones, and devices that support USB-C charging.
4. Operating Instructions
4.1 Wireless Magnetic Charging
For magnetic wireless charging, simply align the back of your MagSafe-compatible iPhone (iPhone 12 series or newer) with the magnetic charging area on the power bank. The strong magnets will snap the power bank securely into place, and charging will begin automatically. Ensure there are no foreign objects between the power bank and your phone.

Image: A visual representation of the power bank's strong magnetic attachment to an iPhone, demonstrating the upgraded magnetic rings for secure connection.

Image: A graphic illustrating the fast wireless charging capability, showing a phone charging from 0% to 50% in approximately 30 minutes.
4.2 Wired Charging (USB-C)
To charge devices via a wired connection, use the provided USB-C to USB-C cable or another compatible USB-C cable. Connect one end to the power bank's USB-C port and the other end to your device's charging port. The power bank supports 20W wired fast charging.

Image: A graphic demonstrating the 20W wired charging speed, indicating a charge from 0% to 60% in about 30 minutes.
4.3 Checking Battery Level
The power bank features LED indicators to display its remaining battery level. Press the power button once to activate the indicators. Each light typically represents a percentage of the battery capacity.
4.4 Charging Multiple Devices
The BBD Magnetic Power Bank allows you to charge two devices simultaneously: one wirelessly via magnetic charging and another via the USB-C port. This feature is ideal for keeping multiple devices powered on the go.

Image: The BBD Magnetic Power Bank shown alongside an iPhone, wireless earbuds, and a tablet, illustrating its 12000mAh capacity and ability to power multiple devices throughout the day.
5. Safety Information
Your BBD Magnetic Power Bank is equipped with a comprehensive multi-safety system to ensure safe and reliable charging. Please adhere to the following guidelines:
- Do not expose the power bank to extreme temperatures (hot or cold), direct sunlight, or high humidity.
- Avoid dropping, disassembling, or attempting to repair the device yourself.
- Keep out of reach of children.
- Do not use if the power bank is damaged or swollen.
- The power bank prevents overcharging, overvoltage, overcurrent, overheating, and short-circuiting.

Image: A diagram highlighting the power bank's Smart Temp Control features, including NTC Smart Temp Control and Graphene Layer Cooling, ensuring safe operation.
6. Maintenance
To ensure the longevity and optimal performance of your power bank:
- Clean the power bank with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Store the power bank in a cool, dry place when not in use.
- If storing for extended periods, charge the power bank to about 50% capacity to preserve battery health.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Cable or adapter issue; power bank fully charged; faulty port. | Try a different USB-C cable and wall adapter. Ensure the power bank is not already full. Contact support if issue persists. |
| Device not charging wirelessly | Misalignment; non-MagSafe compatible device; thick phone case; foreign objects. | Ensure proper alignment. Use a MagSafe-compatible phone or case. Remove any metal objects or thick cases. |
| Slow charging speed | Using a non-fast charging adapter/cable; device not supporting fast charging; high temperature. | Use a 20W or higher power adapter and the supplied USB-C cable. Ensure your device supports fast charging. Allow the power bank to cool down if it feels warm. |
| Magnetic attachment is weak | Non-MagSafe compatible phone/case; foreign objects. | Ensure your iPhone is MagSafe compatible or use a MagSafe-compatible case. Remove any objects between the power bank and phone. |
8. Specifications
| Brand | BBD |
| Model Number | KR-W0021 |
| Battery Capacity | 12000 Milliamp Hours |
| Product Dimensions | 4 x 2.7 x 0.6 inches |
| Item Weight | 7 ounces |
| Connectivity Technologies | USB Type C |
| Special Features | Magnetic, Magsafe, Wireless Charging |
| Color | Black |
| Manufacturer | SHENZHENSHI SHANCHENG TECHNOLOGY CO., LTD |
| Date First Available | August 15, 2024 |
9. Warranty and Support
The BBD Magnetic Power Bank comes with a standard manufacturer's warranty. For detailed warranty information, product support, or to report any issues, please refer to the contact information provided on the product packaging or reach out to the seller directly through your purchase platform. Please retain your proof of purchase for warranty claims.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.