Does the wattage of a charger matter?

When charging mobile phones, we often mix some adapters. When charging with different chargers, we will also find that the charging speed of the mobile phone will be different, so we know that the charger will affect the charging speed of the mobile phone. Others believe that the higher the power of the charger, the faster the charging speed. Is this really the case?

A charger’s wattage determines the maximum amount of power it can provide. This is even more important if you’re planning on charging multiple devices at once, as you’ll need enough power for all of them.The fact is that the power of the charger does affect the charging speed of the mobile phone, but its impact on the charging speed of the mobile phone is controlled within a certain range. The charging limit is determined by the protection circuit IC of the mobile phone battery. For example, the maximum current of the mobile phone battery is limited to 2A, so even if you use a high-power charger, its output will not exceed 2A, and if the power is too high, it will even burn the battery.

The cell phone battery not only controls the highest output, but also intelligently adjusts the charging speed of the charger. If you observe carefully, you will find that the charging speed will slow down after the phone is charged to 80%, which is also a self-protection of the battery.

Although the higher the power of the charger, it does not mean that the charging speed is faster, but you really need a high-power charger to improve the charging speed. With the popularity of fast charging technology, the power of mobile phone charger has gradually changed from 5W to 12W, 18W, 22W. After you understand this, you will know that the higher the power of the charger is, the better. Suitability is the most important.

It is not the charger that determines the actual charging power, but the charging device. There are charging ICs in mobile phones and other devices, which can automatically control the current and voltage, so there is no need to worry about the high-power charger damaging the device.

If the power of the charger is lower than the maximum support power of the device, the charger will always keep running with high load, and the heat will be higher.