The aging of the lithium battery itself, the leakage of the main board of the equipment, the influence of the external environment, system operation failure or software problems, high-power applications and other reasons may lead to the rapid power failure of the iPhone battery, which will be introduced one by one below.

Self-aging of lithium battery

With the increase of chemical aging of batteries, the performance of batteries will decline.

Equipment motherboard leakage

If the maximum capacity of the battery is still above 90%, there will be obvious battery life deterioration, and the power will be quickly lost in a short time. It is not excluded that the motherboard leaks electricity and needs maintenance.

External environmental influence

In high temperature environment, it will permanently affect the performance of the battery. In a low temperature environment, the iPhone may suddenly lose power until it is turned off.

System operation failure or software problem.

Opening multiple apps at the same time, switching the background frequently, or installing some third-party applications that have been running in the background may cause the iPhone to power down quickly.

High power consumption application

High-power applications can also cause the iPhone battery to power off quickly. You can check which applications are running in the background in Settings-Screen Usage Time, and close or uninstall related applications.