1. Introduction
Thank you for choosing the MANKIW W99 3-in-1 MagSafe Wireless Charging Station. This device is designed to provide a convenient and efficient charging solution for your iPhone, Apple Watch, and AirPods simultaneously. Please read this manual carefully to ensure proper use and optimal performance.
Key Features:
- 3-in-1 simultaneous wireless charging for iPhone, Apple Watch, and AirPods.
- Advanced magnetic technology for stable MagSafe charging.
- 360° rotation support for iPhone positioning.
- Intelligent protection against overcurrent, overvoltage, and overheating.
- Soft LED indicator for charging status without disturbing sleep.
2. Package Contents
Please check the package for the following items:
- MANKIW W99 3-in-1 MagSafe Wireless Charging Station
- USB-C Cable (1 meter)
- User Manual
Note: A USB-C 18W or higher power adapter is required for optimal charging performance and is not included.
3. Product Overview
The MANKIW W99 charging station features dedicated areas for each device, ensuring efficient and organized charging.

Image 3.1: The MANKIW W99 3-in-1 MagSafe Wireless Charging Station, showcasing its sleek design and dedicated charging pads for an iPhone, Apple Watch, and AirPods.

Image 3.2: An illustration of the MANKIW W99 charging station highlighting the specific charging areas for iPhone (10-15W), Apple Watch (3W), and AirPods (3W), along with compatible device models.
4. Setup Instructions
4.1 Connecting the Power Adapter
- Connect one end of the provided USB-C cable to the USB-C port on the back of the charging station.
- Connect the other end of the USB-C cable to a compatible USB-C power adapter (18W or higher recommended, not included).
- Plug the power adapter into a wall outlet. The LED indicators on the front of the station will briefly light up, then turn off after 3 seconds, indicating it is ready for use.
4.2 Placement Guidelines
- Place the charging station on a flat, stable surface.
- Ensure there is adequate ventilation around the device to prevent overheating.
- Avoid placing the charger near strong magnetic fields or electronic devices that may cause interference.
5. Operating Instructions
5.1 Charging Your iPhone
- Place your MagSafe-compatible iPhone (iPhone 12 series or newer) onto the vertical magnetic charging pad.
- The iPhone will magnetically snap into place. Ensure it is centered for optimal charging.
- The corresponding LED indicator for the phone will illuminate, confirming charging has begun.
- The iPhone can be rotated 360° on the magnetic pad, allowing for both portrait and landscape viewing, ideal for Nightstand mode.

Image 5.1: The MANKIW W99 charging station demonstrating an iPhone charging in both portrait and landscape orientations, highlighting the adjustable viewing angle and Nightstand mode compatibility.
5.2 Charging Your Apple Watch
- Hang your Apple Watch onto the dedicated watch charging module located at the top of the station.
- Ensure the back of the Apple Watch is in contact with the charging surface.
- The corresponding LED indicator for the watch will illuminate, confirming charging has begun.
5.3 Charging Your AirPods
- Place your AirPods (with wireless charging case) onto the flat charging pad at the base of the station.
- Ensure the AirPods case is centered on the charging pad.
- The corresponding LED indicator for the AirPods will illuminate, confirming charging has begun.

Image 5.2: The MANKIW W99 charging station actively charging an iPhone, Apple Watch, and AirPods simultaneously, demonstrating its 3-in-1 functionality.
5.4 LED Indicator Status
The LED lights on the front of the charging station provide visual feedback on the charging status:
| Indicator | Status | Description |
|---|---|---|
| All LEDs briefly light up, then turn off | Power Connected | The charging station is powered on and ready. |
| Left LED (AirPods) is ON | AirPods Charging | AirPods are being charged. |
| Middle LED (iPhone) is ON | iPhone Charging | iPhone is being charged. |
| Right LED (Apple Watch) is ON | Apple Watch Charging | Apple Watch is being charged. |
| Any LED is flashing blue | Foreign Object Detection / Abnormal Charging | A metallic object is detected, or there is an issue with charging. Remove the object or reposition the device. |
6. Compatibility
The MANKIW W99 charging station is compatible with a range of Apple devices:
- iPhones: iPhone 15 series, iPhone 14 series, iPhone 13 series, iPhone 12 series (MagSafe compatible models).
- Apple Watch: iWatch Series 2-10, iWatch SE, iWatch Ultra, iWatch Ultra 2.
- AirPods: AirPods Pro/2/3/4 (models with wireless charging cases).
6.1 Important Notes on Cases
For optimal charging, ensure your iPhone case is MagSafe compatible. Avoid using cases with metallic components, credit card slots, or PopSockets, as these can interfere with wireless charging.

Image 6.1: An illustration showing compatible and incompatible phone cases for the MANKIW W99 charging station. Cases with metallic elements, credit cards, or PopSockets are not recommended for wireless charging.
7. Safety Information and Protection Features
The MANKIW W99 charging station is equipped with multiple intelligent protection features to ensure the safety of your devices and the charger itself:
- Overcurrent Protection: Prevents damage from excessive current.
- Overvoltage Protection: Safeguards against voltage spikes.
- Overheating Protection: Automatically stops charging if the temperature becomes too high.
- Foreign Object Detection (FOD): Detects metallic objects on the charging surface and prevents charging to avoid damage.
- Magnetic Connection Protection: Ensures stable and safe magnetic alignment.

Image 7.1: An exploded view of the MANKIW W99 charging station highlighting its internal components and various protection features, including FCC certification, overcurrent, overvoltage, overheating, and magnetic connection protection.

Image 7.2: A comparison illustrating how the MANKIW W99's design helps prevent overheating, contributing to better long-term battery health for iPhones compared to other chargers.
8. Maintenance
8.1 Cleaning
- Before cleaning, disconnect the charging station from the power source.
- Use a soft, dry cloth to wipe the surface of the charger.
- Do not use abrasive cleaners, solvents, or chemical sprays, as these may damage the device.
8.2 Storage
- Store the charging station in a cool, dry place away from direct sunlight and extreme temperatures.
- Keep out of reach of children and pets.
9. Troubleshooting
If you encounter any issues with your MANKIW W99 charging station, please refer to the following common problems and solutions:
- Device not charging:
- Ensure the power adapter is properly connected and plugged into a working outlet.
- Verify that you are using an 18W or higher USB-C power adapter.
- Check if the device is correctly placed and centered on its respective charging area.
- Remove any metallic objects, credit cards, or thick cases that might interfere with wireless charging.
- For AirPods, ensure the case supports wireless charging.
- Charging is slow:
- Ensure you are using an 18W or higher USB-C power adapter. Lower wattage adapters may result in slower charging.
- Check for proper alignment of your device on the charging pad.
- Avoid charging in excessively hot environments, as devices may reduce charging speed to prevent overheating.
- LED indicator flashing blue:
- This indicates Foreign Object Detection (FOD) or abnormal charging. Remove any foreign metallic objects from the charging surface.
- Reposition your device to ensure proper contact.
- Device gets warm during charging:
- It is normal for wireless chargers and devices to become slightly warm during charging.
- If the device becomes excessively hot, the charger's overheating protection will automatically stop charging. Ensure adequate ventilation and remove any obstructing cases.
10. Specifications
10.1 Technical Specifications
| Feature | Specification |
|---|---|
| Brand | MANKIW |
| Model Number | W99 |
| Color | Black |
| Input Voltage | 12 Volts |
| Amperage | 1.5 A |
| Power Output | 18 Watts (Max) |
| Connector Type | USB Type C |
| Special Features | MagSafe Compatible, Magnetic, Multi-Protection |
| Compatible Devices | iPhone 15/14/13/12 series, AirPods Pro/2/3, iWatch 9/8/7/6/5/4/3/2/SE/Ultra/Ultra 2 |
| Country of Origin | China |
11. Warranty and Support
MANKIW products are designed and manufactured to the highest quality standards. For specific warranty information, please refer to the warranty card included with your product packaging or visit the official MANKIW website.
If you have any questions, require technical support, or need assistance with your MANKIW W99 charging station, please contact our customer support team through the retailer where you purchased the product or via the contact information provided on the official MANKIW website.




