The mate40pro uses the 22.5W wired fast charge and 40W wireless fast charge technologies developed by Huawei, so the fast charge state is automatically adjusted according to the battery level and charger power when charging.
When the battery is low, the phone will automatically turn on the fast charge mode to quickly charge the battery. When the battery is high, in order to protect the battery life and avoid overheating and other problems, the phone will automatically switch to the ordinary charging mode, charging at a slow and stable speed to ensure charging safety and battery life. Therefore, mate40pro a quick charge a slow charge is not a fault or problem, but a reasonable charge management strategy.