In response to this question: "Will a 120W charger be broken when charging a 33W phone?" "We first need to go deep into the interaction between the charger and the phone. The essence of the matching relationship between the charger and the mobile phone lies in whether the supply and demand of current and voltage are in harmony. If the power of the charger is too high, it may cause the phone to overheat, and even damage the phone hardware in severe cases. Conversely, if the charger is too low, it may not be able to meet the phone's power demand, resulting in slow charging or failure to fully charge. 
Now, let's get back to the heart of the matter: will a 120W charger charge a 33W phone cause the phone to be damaged? It really depends on whether the output voltage and current of the charger are precisely matched to the needs of the phone. If a 120W charger happens to have the output voltage and current specifications to match a 33W phone, then it will not only be able to provide enough power to the phone, but it will not cause any kind of damage to the phone. 
However, once the output voltage and current of the 120W charger deviate from the demand of the 33W phone, the problem will follow. This can lead to overheating, overcharging or slowing down the battery, or causing damage to the phone's internal circuitry and even serious safety issues such as the battery**. What's even more worrying is that if the charger's output voltage or current is too high, its potential harm to the phone can be devastating. To sum up, whether a 120W charger will cause problems when charging a 33W mobile phone is whether the voltage and current output of the charger accurately match the needs of the mobile phone. In order to ensure the proper functioning of the phone and prolong its lifespan, it is highly recommended to use a charger that matches the phone for charging. A mismatched charger can not only damage your phone, but it can also pose an unforeseen security risk. 