There can be a number of reasons why the nova12ultra Super fast charge is slow.
First of all, the poor quality or wear of the charger and cable used may affect the charging speed. In addition, it may be necessary to remove dust or foreign substances from the charging mouth. In addition, factors such as the aging of the phone or short battery life can also affect the charging speed. It is recommended to use the original charger and cable, make sure to clean the charging port before use, and consider replacing the battery or repairing the phone.