Wireless charging and wired charging principle is different, resulting in wireless charging speed is relatively slow. Here are the details:
1. Wireless charging principle: Wireless charging is mainly achieved through electromagnetic induction. The coil in the charger creates an electromagnetic field, which the coil built into the phone picks up and converts into electricity to charge it. Due to the low efficiency of electromagnetic induction, the energy conversion efficiency of wireless charging is lower than that of wired charging, so the charging speed is relatively slow.
2. Power limits of wireless charging: Due to safety and stability considerations, the power of wireless chargers is usually lower than that of wired chargers. Low power results in less current when charging wirelessly, resulting in slower charging.
3. The efficiency of wireless charging is affected by the environment: the efficiency of wireless charging is also affected by the environment, such as the distance between the charger and the phone and the location of the charger. If the distance is too far or the location is improper, the transmission efficiency of electromagnetic waves will be reduced, resulting in slower charging speed.
In general, the principle and power limitations of wireless charging cause its charging speed to be relatively slow. However, wireless charging can bring a more convenient experience, can avoid the winding and damage of the charging cable, so it is still welcomed by many users.
Both wireless and wired charging damage the battery equally. However, when using wireless fast charge, because the coil will be hot during the charging process, wireless charging is theoretically more likely to lose the battery than wired charging. Therefore, it can be concluded that wireless charging and wired charging damage the battery equally, but when using wireless fast charging, wireless charging may damage the battery more easily than wired charging. As a result, direct charging is slow after wireless charging
Because wireless charging needs to transmit electric energy to the device through electromagnetic waves for charging, this process will produce a certain amount of energy loss, resulting in a slower charging speed than direct plug-in charging. In addition, the distance between the wireless charger and the device, the power of the charger and other factors will also affect the charging speed.
If you want to speed up wireless charging, you can choose a higher power charger, or place the device in the center of the charger to reduce energy loss and transmission distance. At the same time, you can also choose devices and chargers that support fast wireless charging for faster charging speeds.