Yes, a 90W charger can be used to charge a 66W phone. The rated power of the charger only indicates the value of the maximum output power, and the power required by the phone is controlled by the circuit of the phone itself. Therefore, if a charger with a higher power rating is used to charge the phone, the phone will only absorb the part of the power it needs, rather than absorb the full power of the charger.
It should be noted that although using a 90W charger to charge a 66W mobile phone will not cause problems, too high charging power may also have a negative impact on the mobile phone battery, so it is recommended to choose a charger with similar power to the phone itself to charge in the case of ensuring fast charging.
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As long as there is a matching voltage and current, the charging protocol can be consistent, if the charging protocol is inconsistent, the charger will not receive the fast charging signal and cannot be charged!
For example, Apple users can choose PD charging bank, because the models starting from iPhone8 support PD fast charging; Huawei users can choose FCP fast charge products; Xiaomi can choose QC fast charging bank.
Agreed. As long as the output voltage of the charger is the same, the charging power is based on the charging IC chip inside the mobile phone to obtain current from the charger, not the charger forced to deliver current to the mobile phone, the maximum output of 90 watts of the charger, the minimum output of 1 watt.
Yes, the power on the charger only indicates the maximum output power, the actual output power is determined by the battery command.
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However, using a 120W charger to charge the phone may not reach the 66W charging power, which is also related to the fast charge protocol of the charging device itself.
The 90w charger can charge 66w. Charging voltage and current are the internal management chip of the battery according to the temperature and use of its own decision and command charger, mobile phones and chargers can not force it to charge fast, but can intercept or ignore the command signal, force it to charge slowly
Agreed. 90w charger can charge 66w mobile phone, this is no problem, because the current charger is generally large power, power can be lowered into smaller power, but the smaller the charging power, the charging speed will become slower and slower, this is the main impact on other aspects will not appear any compatibility problems, you can rest assured to use.
The 90w charger can not charge the 18w mobile phone, this is because the rated power of the 90w charger is greater than the rated power of the 18w mobile phone, the rated power between the two can not match, if the 90w charger is used to charge the 18w mobile phone, because the rated power of the 90w charger is larger, the 18w mobile phone will explode. Therefore, the 90w charger can be used on the 18w mobile phone, and the charging protocol between the two does not support charging.