Shutov explained that using a more powerful charger will not cause the phone to overheat or overcharge. The phone will consume as much power as it needs up to its maximum power.
The same can be said for a lower power charger. For example, if your phone supports fast charging up to 66W but you only have a 33W charger, it will still be able to charge the phone but it will take longer.
However, Shutov warns against using cheap chargers or chargers that do not have the necessary certifications. Such chargers can cause faster battery wear, overheating, or even fire.
If you want to take advantage of fast charging, Shutov recommends using a charger that complies with your phone’s charging standard. However, he also says that using original cables and adapters will help extend the life of the phone.
Source: Ferra

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