If you buy a high-end smartphone, it's very probable that you'll also acquire a wireless charger. They are very handy, and the most recent ones have a nice speed. However, there are others who have stated that the wireless charger reduces battery life.
Is it true that a wireless charger reduces battery life on a smartphone?
To answer this question, we need to examine the wireless charger's operation. Electromagnetic induction is a phenomenon whereby a rapidly changing magnetic field produces electrical energy in a closed loop that interacts with that magnetic field.
For wireless charging to work, we need a smartphone that supports wireless charging and a compatible wireless charger. The rapidly changing magnetic field interacts with the copper coil inside the smartphone, inducing an electrical current. The battery is charged by the use of wireless charging standards.
If you don't dock your phone correctly, it will charge slowly or none at all.
To force the coils to be aligned, a viable solution is to use magnets. For example, MagSafe uses magnets very effectively to ensure excellent positioning.
There are other methods of charging that do not require this charging. Examples of this include charging by resonance or via RF. The latter allows you to charge your phone without being too close to the charger.
Let's get to the core point of the matter.
The wireless charger does not wreak havoc on your phone's battery. This is a misconception, according to others, because wireless charging generates more heat than wired charging, which puts greater strain on your battery.
Although this is true to an extent, the heat produced by wireless charging is controlled by the smartphone and shouldn't harm the battery.
Because of the way it operates, wireless charging generates more heat than conventional wired charging. A side effect of electromagnetic induction is excessive heat generation. Of course, wireless charging can cause damage to your phone if not properly managed.
If a wireless charger detects excessive heat, it will reduce the battery's charging speed. Therefore, your phone will remain safe.
Second, when charging wired or wirelessly, the battery itself does not heat up. In the case of wireless charging, only the copper coil inside the phone heats up. However, the battery is protected by a layer of thermal insulation.
Wireless charging does not affect battery charging cycles as much as regular wired charging.