Apple's use of wireless chargers does not damage the battery. The principle of wireless charging is to have a built-in wireless charging function in the phone, and simply place the phone on a wireless charger to charge it. The following is a detailed explanation of this viewpoint:
1. Wireless charging technology: Wireless charging technology has been widely used in various electronic devices, including Apple phones. This charging method generates current through electromagnetic field induction to charge the device. Its working principle is different from wired charging, but it does not cause additional damage to the phone battery. Apple's MagSafe technology is based on the Qi wireless charging standard, which has evolved to support higher fast charging power, such as 30W. Apple's improvement lies in improving charging efficiency through magnet design, rather than changing battery technology.
2. Battery impact: During wireless charging, the energy transfer between the battery and the charging base can cause a certain amount of heat to be generated inside the battery, but this heat is usually very small and not enough to cause damage to the battery. Long term use of wireless charging may lead to a gradual decrease in battery capacity, but this is mainly due to the normal aging process of the battery, rather than the wireless charging itself. Avoiding playing with your phone while charging and charging it for too long can also effectively extend battery life.
3. The advantages of wireless charging: The biggest benefit of wireless charging is that it breaks free from the constraints of wires, making each charge more convenient, reducing the hassle of plugging and unplugging data cables, and minimizing damage to the charging interface. At the same time, wireless charging technology is also safe and harmless to the human body because it uses the resonance principle of magnetic field resonance, which only transmits between coils that resonate at the same frequency, and other devices cannot accept this frequency band.
Apple's use of wireless chargers does not damage the battery. As long as users pay attention to choosing suitable charging devices, maintaining good usage habits, and regularly maintaining the battery, they can ensure that wireless charging brings convenience while also ensuring the long-term use of the battery.