First of all, look at the output voltage supported by the 33W charger, which is described in the charging head of the charger, find the charging head label of the mobile phone charger, in the output line above,
Check the output voltage and current of the charging head, generally there are several output voltages and currents, such as 5V2A\/9V2A\/10V3A and so on.
It means that the output voltage supports 5V2A10W output, 9V2A18W output, 10V3A30W output, and we can check whether there is a voltage and current supported by our own mobile phone according to this.
The maximum is the 22.5W charging power of your charger. Because the power of the charger you use is so large, its speed is so large, and sometimes it may be less, but also to see how much the receiving power of your charging device is, if its receiving power is lower than the power of your charger, then it can only be seen according to his receiving tools.