Will using a wireless charger for a long time damage the battery?

Will using a wireless charger for a long time damage the battery?

With the continuous advancement of technology and people's demand for convenience, various household devices have begun to support wireless charging. Wireless charging has truly become extremely popular and widespread. Some people are deeply in love with it, while others have various doubts. Will long-term use of wireless chargers damage the batteries? Is the claim on the internet that wireless fast charging will shorten the battery life true? Today, let's find out the answers.

To sum up: There is no difference in the impact on the battery.

Let me elaborate. The principle of wireless charging is actually quite simple. Most people are familiar with the "electromagnetic induction" phenomenon. It is the magnetic field generated when current passes through a coil. The wireless charging device then conveys the energy to the charging terminal device, which then converts the received energy into electrical energy and stores it in the device's battery. The current wireless chargers are based on this principle.

So, will the magnetic field generated by wireless charging damage the battery of electronic devices? The answer is no. Because the back of the phone that supports wireless charging also has a coil, which is used to receive and collect magnetic field energy. This kind of electromagnetic induction in wireless charging can only affect the coil on the back of the phone.

The various principles are too complex and difficult to understand. To address this issue, we will use actual cases for explanation. Take the example of the Fuying engineers using the test phone. They have been charging it with a wireless charger for the past six months. The battery loss was approximately 3.8%. Compared to the same usage frequency, when charging the phone with a wired charger, the battery loss was also approximately 3.9%. Therefore, whether using wired charging or wireless charging, the battery loss for the phone is almost the same.

If you find that the wireless charger may damage the battery, then you can consider the following possibilities:

Is the wireless charger I have myself an unqualified charger? Because only unqualified chargers are more likely to cause problems with the battery's production decay.

2. Incorrect charging habits: Most smart electronic products use lithium batteries. Lithium ions have certain reactivity. If the battery is over-discharged, it will definitely affect its lifespan.