Countermeasures against the rapid decline of Apple iPhone battery capacity

Recently, Apple’s iPhone 14 series mobile phones have attracted widespread attention from users due to battery aging issues. Many users have reported that the battery health of their iPhone 14 series mobile phones has dropped below 90% in less than 11 months. Some users even reported that the battery health has dropped to 87%.

Everyone knows that when the iPhone battery health is lower than 80%, the phone will remind the user that the battery needs to be replaced, and the cost of replacing the iPhone battery is not Low.

Why does Apple iPhone battery health decline after a period of time? What should I do if my iPhone’s battery capacity is seriously degraded? Do I have to replace the battery?

In fact, the battery health of iPhones has always been the focus of discussion among Apple fans!

Like most smartphones nowadays, Apple also uses lithium polymer batteries. Its working principle is simply this: there are positive and negative poles in the battery. The negative electrode has a large number of lithium ions in the graphite structure. These lithium ions are relatively easy to lose electrons, and because the electrolyte in the middle does not allow electrons to pass through, a large number of electrons will flow through the mobile phone components to provide power, and the lithium ions will also flow to the left through the electrolyte. Lithium cobalt oxide is formed. When all the lithium ions flow to the positive electrode and there are no electrons released from the negative electrode, the mobile phone will be out of power. On the contrary, when charging, the adapter exerts a greater force on the electrons in the positive electrode, and the lithium ions return to the negative electrode and return to the state before discharge.

After understanding the charging and discharging principles of the battery, the reasons for the battery capacity decay will become clear:

1 . Influence of work factors: When there is excessive discharge, a large amount of lithium ions from the negative electrode flow to the positive electrode, and the reaction forms irreversible lithium oxide and other substances. The overall lithium ions are reduced and fewer electrons can be accommodated; the same is true for overcharging. Staying in a high temperature environment for a long time will also affect the chemical reactions inside the battery, the stability of SEI, etc.

2. Influence of internal factors: There is irreversible consumption of active materials inside the battery.

3. Influence of non-working factors: The battery structure is damaged due to physical factors such as impact and acupuncture, leading to explosions and other phenomena.

Based on these factors, Apple officials have also given several plans for battery maintenance:

1 . It is recommended that the iPhone be charged to between 30% and 80% each time, and not to be overcharged.

2. Charge the mobile phone promptly when the battery level is around 20%-45%. Do not wait until the battery level is too low before charging.

3. Perform a complete charging cycle at least once a month, that is, wait until the phone’s power is below 20% and start charging until it is fully charged, which is a cycle.

4. Avoid playing with your phone during charging. This will cause great damage to the battery and is risky.

5. If you charge overnight every day, you should turn on the "Optimize Battery Charging" function. When it is close to full, the system will automatically slow down the charging speed to prevent overcharging.

6. Avoid recharging when the battery power is lower than 20% for a long time, as this will cause great harm to the battery.

If the battery capacity of your Apple iPhone 14 is severely degraded, you can refer to the above solutions to protect the battery.

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