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Yes, you can use a 33W charger for an 18W phone. The wattage of a charger refers to its power output, and it represents the maximum amount of power that the charger can deliver to a device. In this case, the 33W charger has a higher power output than the 18W phone requires.
When using a charger with a higher wattage than what your device needs, there are a few things to consider. Firstly, it is important to note that the wattage of the charger does not determine how fast your phone will charge. The charging speed is primarily determined by the phone’s charging circuitry and software.
When you connect your 18W phone to a 33W charger, the phone will only draw as much power as it needs. The charger will not force more power into the phone than it can handle. This is because modern smartphones have built-in charging circuits that regulate the charging process and protect the battery from overcharging or overheating.
Using a higher wattage charger may result in slightly faster charging times compared to using an 18W charger. However, the difference in charging speed may not be significant, as the phone’s charging circuitry will still limit the amount of power it draws.
It is worth noting that using a higher wattage charger does not pose any risk to your phone as long as it is compatible with the charging port. Most modern smartphones use USB Type-C ports for charging, which are designed to be compatible with various chargers and cables.
In summary, you can safely use a 33W charger for an 18W phone. The phone will only draw as much power as it needs, and the charging speed will be primarily determined by the phone’s internal circuitry and software. But we suggest using the original charger. Related, Can I use 33w charger for 25w phone?