Nowadays, wireless chargers are very common, but there are still many people who misunderstand it.  For example, it has radiation, which is harmful to human body, and it will also heat up intermittently, which is very harmful to mobile phones. Are these remarks correct?  Is wireless charger harmful to human body and mobile phone?  Let's demonstrate it together.

First of all, let's look at whether the wireless charger has any adverse effects on the human body.

Theoretically, wireless charging technology is safe and harmless to human body. The resonance principle used in wireless charging is magnetic field resonance, which is transmitted only between coils resonating at the same frequency, while other devices cannot accept wave bands. In addition, the magnetic field used in wireless charging technology is harmless to human body.

Wireless charging technology uses magnetic resonance to transmit electrical energy in the electric and magnetic fields between the charger and the device, while coils and capacitors form resonance between the charger and the device.

These resonating human bodies cannot be sensed and will not have any bad influence on the human body.  Radiation is even more ridiculous. Our earth itself is a huge magnetic field. If only there is a magnetic field, there must be radiation to human beings, then we cannot live on the earth.

Is the wireless charger harmful to mobile phones?

The wireless charger will not harm the mobile phone under normal circumstances. The current working frequency of wireless charging is below 1M, so it will not affect the signal of the mobile phone.  Wireless charging has no effect on the battery life of mobile phones, which is basically the same as wired charging, but the rate is lower, but the power conversion rate of wireless charger is higher than that of wired charger, so it saves more energy.

The wireless charger mainly adopts inductive coupling technology. Because the coupling technology mainly generates current through the magnetic field of the coil, the internal components of the battery cannot form a magnetic field, so the internal structure of the battery will not be damaged during the power-on process.

At present, most mobile phones in the market meet QI wireless charging standards and have built-in wireless receivers. They all have a rated voltage and current, which will automatically cut off power if exceeded. Therefore, wireless chargers have no influence on mobile phones and we can use them safely.