Galaxy Note9: How to use Fast wireless charging feature?
The device has a built-in wireless charging features. You can charge the battery using a wireless charger (sold separately).
You can charge your device faster using the fast wireless charging feature. To use this feature, you must use a charger and components that support the fast wireless charging feature. If the fast wireless charging feature is not activated, here are the steps to activate:
Navigate to Apps screen > Tap Settings > Tap Device maintenance > Tap Battery > Select More option > Select Advanced settings > Activate Fast wireless charging option
• The on/off option will be added in your device’s settings menu when you first place it on the charger.
• A fan inside the charger may produce noise during fast wireless charging.
Precautions for charging Note9 safely