1. Product Overview
The KUULAA MagOn 10000mAh 20W Magnetic Wireless Power Bank (Model KL-YD57) is a versatile portable charger designed for fast and convenient power delivery to your mobile devices. Featuring both magnetic wireless charging and wired USB-C charging, it offers a compact and efficient solution for staying powered on the go.

Image: KUULAA MagOn Power Bank magnetically attached to an iPhone.
Key Features:
- High Capacity: 10000mAh (38.5Wh) Lithium Polymer Battery.
- Dual Charging Modes: Magnetic Wireless Charging (up to 15W) and Wired USB-C Fast Charging (up to 20W).
- Strong Magnetic Adsorption: Ensures secure attachment to compatible devices.
- Automatic Wake-up Charging: Begins charging automatically upon magnetic attachment.
- LED Indicators: Four-grid power indicator and wireless charging indicator.
- Temperature Protection: Built-in temperature sensor for real-time control and safety.
- Compact & Portable: Ultra-thin and lightweight design (105x69x12mm, 185g).
- Durable Construction: Aluminum alloy and PC shell material.
- Certifications: RoHS, CE, UL, FCC compliant.

Image: Diagram highlighting key features of the power bank.
2. Package Contents
Please check the package for the following items:
- KUULAA MagOn 10000mAh Magnetic Wireless Power Bank
- USB-C to USB-C Charging Cable
- User Manual (this document)

Image: Product packaging contents.
3. Setup and Initial Use
3.1 Charging the Power Bank
- Connect the provided USB-C cable to the power bank's USB-C port.
- Connect the other end of the cable to a compatible USB power adapter (not included).
- The LED indicators on the power bank will light up to show the charging status. A full charge is indicated when all four LEDs are solid.
- It is recommended to fully charge the power bank before its first use.
3.2 Checking Battery Level
Briefly press the power button on the side of the power bank to check the current battery level via the LED indicators.
4. Operating Instructions
4.1 Magnetic Wireless Charging
- Ensure your device (e.g., iPhone 12-16 series) is compatible with MagSafe or magnetic wireless charging. For optimal performance with non-iPhone devices, a magnetic case may be required.
- Align the power bank with the back of your compatible phone. The strong magnets will snap it into place.
- Charging will begin automatically (Automatic Wake-up Charging). The wireless charging indicator light on the power bank will illuminate.

Image: Magnetic attachment for instant wireless charging.

Image: Magnetic case compatibility for optimal wireless charging.
4.2 Wired USB-C Charging
- Connect one end of the USB-C cable to the power bank's USB-C port.
- Connect the other end of the cable to your device's charging port.
- The power bank will automatically detect the device and begin charging.
4.3 Simultaneous Charging
The KUULAA MagOn power bank supports simultaneous wired and wireless charging, allowing you to charge two devices at once.

Image: Simultaneous wired and wireless charging.
4.4 LED Indicators
The power bank features LED lights to indicate its status:
- Four-grid Power Indicator: Shows the remaining battery level of the power bank.
- Wireless Charging Indicator: Illuminates when wireless charging is active.

Image: LED indicators for power and wireless charging.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the power bank. Do not use harsh chemicals or abrasive materials.
- Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
- Temperature Guidelines: The power bank is designed with temperature sensor protection. During use, the maximum temperature should not exceed 40°C. If the device feels excessively hot, discontinue use.
- Avoid Drops: Protect the device from drops and impacts.
6. Troubleshooting
- Power bank not charging: Ensure the USB-C cable is securely connected to both the power bank and the power adapter. Try a different cable or adapter.
- Device not charging wirelessly: Ensure your device is compatible with magnetic wireless charging. Check if the power bank is properly aligned with your phone's charging coil. If using a non-magnetic case, remove it or use a magnetic-compatible case. Ensure the power bank itself has sufficient charge.
- Device not charging via wired connection: Ensure the USB-C cable is securely connected to both the power bank and your device. Try a different cable.
- Slow charging: Verify that your device supports fast charging and that the cable and power bank are capable of delivering the required power. Some devices may limit charging speed if they are already partially charged or if the temperature is too high.
- Power bank feels hot during charging: The power bank has built-in temperature protection. If it becomes excessively hot, it may temporarily stop charging to prevent damage. Disconnect the device and allow it to cool down before resuming use.
7. Specifications
| Attribute | Specification |
|---|---|
| Brand Name | KUULAA |
| Model | KL-YD57 |
| Battery Type | Li-Polymer Battery |
| Capacity | 10000mAh (38.5Wh) |
| Max Output | 20W |
| Input Interface | USB Type C (5V/3A; 9V/2.22A; 12V/1.67A) |
| Output Interface | USB-Type C (5V/3A; 9V/2.22A; 12V/1.67A) |
| Wireless Charge Output | 15W/10W/7.5W/5W (7.5W for iPhone 12-16 series) |
| Total Output | 5V/2A |
| Shell Material | Metal (Aluminum Alloy) + PC |
| Product Size | 105x69x12mm |
| Product Weight | 185g |
| Features | Wireless Charge, With Led Lamp, Two-way Quick Charge, 2-in-1 Magnetic Wireless Charging Power Bank |
| Certification | RoHS, CE, UL, FCC |
| Compatible Devices | For iPhone 15/15 Pro/15 Pro Max/14/14 Pro/14 Pro Max/14 mini/13/13 Pro/13 Pro Max/13 mini/12/12 Pro/12 Pro Max/12 mini, Samsung, Xiaomi, Huawei, Google Pixel 7 (via wired or compatible wireless charging) |

Image: Product dimensions diagram.
8. User Tips
- Optimal Wireless Charging: For the best magnetic attachment and wireless charging efficiency, especially with non-iPhone devices, consider using a phone case that is specifically designed for magnetic charging.
- Compatibility: While optimized for iPhone 12-16 series, this power bank can also wirelessly charge other compatible devices like Samsung, Xiaomi, and Huawei phones (at 10-15W). Wired charging via USB-C is universally compatible with devices like Google Pixel 7 that use a USB-C port.
- Travel-Friendly: The power bank complies with international aviation safety standards, making it suitable for air travel.
- Gaming & Charging: The slim design allows for comfortable use while gaming or watching videos, even when magnetically attached.
Video: Product demonstration showing magnetic attachment, usage while gaming, and simultaneous charging.
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided at the time of purchase or contact the KUULAA customer service directly. Keep your proof of purchase for any warranty claims.