Charging non fast charging mobile phones with a fast charging charger will not directly harm the phone, but it will have an impact on the battery life of the phone. Because the output current and voltage of a fast charging charger are higher than those of a regular charger, it will accelerate the charging speed of the battery during use, thereby accelerating the aging speed of the battery and affecting its lifespan.
In addition, using an inappropriate fast charging charger may also cause damage to the phone. Because different mobile phones have different levels of support for the fast charging protocol, using a charger that does not support the fast charging protocol may lead to the risk of overheating, battery damage, and even fire on the phone.
Therefore, when purchasing a charger, it is important to choose a charger that is suitable for your phone and not blindly pursue the speed of a fast charging charger to protect the battery life and safety of your phone.
