Anyone who has ever used an iPhone must have experienced that it becomes extra durable when the battery is below 6%. As long as you don't turn on the screen, you can even hang up your headphones to listen to songs and go home and recharge. Why is the last bit of power that the iPhone shows on the battery so durable?Let's take a look.
To understand why the low battery of the iPhone lasts longer, we need to understand that the displayed battery is not equal to the real battery. Why is it displayed incorrectly?It's all about voltage, charge, and other factors. This subtle measurement is perceived, and it leadsThe display of the power does not match the actual power level
In terms of voltage, when you buy a phone, the parameter list will clearly tell you the standard voltage of the built-in battery. Although this value is indicated, there is no guarantee that the actual output voltage of the battery will be released according to this standard voltage from beginning to end. This parameter is marked,More of a median range
As the amount of electricity decreases, so does the level of the discharge voltage. The phone's monitoring of the battery level is precisely due to this change in value. Just,The level of voltage output is not a regular step, so the percentage values provided by the monitoring should only be used as a guide. Of course, there are ways to correct for this error, but it is not possible to achieve completely accurate continuous monitoring overall.
In addition to voltage, charge is also one of the means used to monitor the amount of electricity. In many mobile phones nowadays, there is a device called a coulomb counter. To put it simply, it's like oneFlow measuring device；The remaining charge is obtained by monitoring the amount of charge released by the battery used, and then subtracting this value from the total number of charges. Compared with simple voltage monitoring, the addition of coulomb meter undoubtedly makes the power monitoring more accurateBut in reality,There will still be errors
The existence of this numerical error may bring the feeling of fast and slow power consumption during use. Therefore, some mobile phone manufacturers simply display the low battery in advance, urging users to charge as soon as possible. From the perspective of battery health, it is still recommended not to think about charging at the last minute.