If the battery voltage is unstable, it is easy to cause the phone to suddenly shut down and restart. In order to avoid the accidental shutdown and restart of these old small-screen mobile phones, Apple added a processor frequency reduction mechanism to the version of iOS 10.3. When the system detects that the battery is in low health, the CPU and GPU of the processor will automatically reduce the frequency and power consumption.
In this way, there will be no accidental shutdown and restart caused by insufficient battery power supply, but the phone is disconnected and stuck.
Several skills to protect the battery health of Apple mobile phone;
1, pay attention to daily user habits: don't "overcharge" or "overdischarge", keep the power between 30% and 80%, charge as needed, and try not to wait until the power is very low before recharging.
2. Software assistance: Turn on "Optimize Battery Charging" in iPhone Settings-Battery-Battery Health, and the machine will learn the user's daily charging mode, thus slowing down battery aging.
3. Suitable temperature: The optimal temperature for iPhone, iPad, iPod and Apple Watch given by Apple official website is 0℃ to 35℃ to ensure that the mobile phone works in this temperature range as much as possible.