When should you consider replacing the iPhone 12/11 battery to stay healthy?

iPhone users should all know that Apple devices have a battery health option, through which you can check the battery cycle charging status and the maximum capacity of the battery health.

According to Apple’s official statement, when the iPhone completes 500 charges and discharges, does it need to replace the battery?

When is the health level of an Apple battery remaining, should I consider replacing the battery?

If you don’t know much about Apple’s battery health, and your iPhone 12 and iPhone 11 have been draining power very quickly recently, then I suggest you continue reading the following content.

1. What is the battery health of iPhone 12?

Apple has added new "Battery Health" management and "Performance Management Switch" functions to the iOS 11.3 beta 2 version. This function allows users to directly view iPhone battery health data.

Apple officials stated that after 500 complete charging cycles, the battery’s capacity will be able to maintain 80% of its original capacity.

Based on the above description, we can conclude: To determine the number of cycles, we cannot directly check it, but we can refer to whether the battery capacity value is less than 80%. If the battery capacity falls below 80% within one year of purchase, Apple will provide free battery replacement.

For users who have purchased Apple Care, they are entitled to free battery replacement during the validity period of Apple Care. However, if you exceed the warranty period and do not purchase Apple Care, you will need to pay for battery replacement.

2. How to check battery health on iPhone?

On iPhone12, you can directly check the health of the battery. Just follow these steps: First, open the settings option of your phone. Then, find and tap on the "Battery" option. In the battery settings interface, you will see an option called "Battery Health." Once you click in, you'll see an indication called "Maximum Capacity." This number indicates the current health of your battery. By looking at the maximum capacity, you can get an idea of ​​the current status of your battery.

3. If the iPhone battery capacity is lower than 80%, it must be replaced?

When the battery capacity of iPhone12 and iPhone11 is lower than 80%, do you need to replace the battery?

According to Apple’s official recommendations, it is recommended to replace the battery when the health of the iPhone battery is lower than 80%. This is because when the battery health is below 80%, the system automatically activates the performance management function, which may cause the phone to become slower in some cases. In order to solve this problem, we need to replace the battery to completely solve it. Apple's official suggestions are to ensure that users can get a better experience.

At the same time, lithium batteries have a lifespan and do not fall below 80% after one year of use.

After 500 cycles of charging, the battery life of the iPhone 12 will begin to decrease. After about 14-18 months, the battery capacity may be reduced to about 80%, which means that the battery has begun to age. If your battery is aging, consider replacing it with a new one.

Characteristics of Apple battery aging:

1. Charge and discharge quickly. It charges quickly but loses power quickly, or it charges slowly but loses power quickly.

The battery power display is abnormal. Even when the power is only 20%, after plugging in the charger, the power suddenly becomes 30% or even 40%.

3. Shut down when there is power. When it shows 1-20% battery, the iPhone will shut down inexplicably. After plugging in the charger, it will show there is still power.

In standby mode, the battery power of the mobile phone cannot support a full day of use.

If your iPhone has the situation described above, it is most likely because the battery is aging. Even if the battery capacity is still above 80%, we recommend considering replacing it with a new one.

4. Why does the iPhone limit the battery to 80%?

The iPhone battery uses a lithium-ion battery. Adding fast charging to iPhone11, iPhone12 and other series models can reach 50% power in 30 minutes, and then slow charging will start after charging to 80%. .

This is also because Apple has added battery life extension technology to ion batteries. For example, if the iPhone is overheated or [Optimize Battery Charging], it will be stuck at 80% and will not continue to charge. This is mainly Apple lithium-ion battery. The purpose of the design is to try to maintain 80% of the power even after multiple charging cycles.

5. Will leaving the iPhone unplugged after it is fully charged will damage the battery?

We all know that Apple devices have a built-in intelligent power management system that automatically cuts off power when the battery is full.

However, if we keep the lithium-ion battery continuously charged at 100% high voltage for a long time without use, this will bring cumulative damage to the battery, causing the battery to age faster. Because the battery's positive and negative ions can maintain a healthy state within the range of 30% to 90%.

Many iPhone users are used to charging their phones while sleeping, which causes the battery to remain at 100% high voltage for a long time.

According to user habits, Apple began to add [Optimized Battery Charging] after the iOS 13 system, which can maintain power at 80% and extend battery life as much as possible.

The above is the detailed content of When should you consider replacing the iPhone 12/11 battery to stay healthy?. For more information, please follow other related articles on the PHP Chinese website!