The Xiaomi 30W Magnetic Wireless Charger is designed to be compact and lightweight, without active cooling. Its charging power can be affected by ambient temperature, phone temperature, and usage scenarios.
The reasons for slow charging are as follows:
1. If the phone becomes too hot, it will automatically adjust the charging power to prevent overheating, which can slow down charging;
2. High ambient temperatures can also cause the charger to work less efficiently, leading to slower charging speeds;
3. If you're using the phone for intensive tasks (e.g., gaming or video streaming) while charging, this can generate heat and cause the charger to lower the power output.