The battery is a consumable item, from the day it is produced, it is consumed even if it is not used. The durability of the battery is different at different stages.
We can imagine battery as people's life , 0% - 20% is like infancy, 80% - 100% is like old age.
Batteries are the most vulnerable in these two periods, especially in infancy. The two modes of iPhone low power mode and optimized battery charging are to better protect the battery when the battery is most vulnerable. Whether charging or playing with your phone, try to avoid infancy and old age. Keeping the battery level between 20% - 80% will help with battery health.
According to Battery University, the most durable stage of the battery is 65% - 75%, followed by 45% - 75%.
However, this is a rigorous scientific experiment. We use mobile phones every day, and the experience is the first. Try to keep the battery between 20% - 80%.
Therefore, you could use the fragmented time to charge the mobile phone for a while when you have nothing to do, which can extend the life of the battery to a certain extent.
The above theory has also been publicly promoted by Xiaomi mobile phones, which shows that it is trustworthy.
