The mobile phone is out of power, why is the battery less and less durable now?
For modern people, the mobile phone has long become a "companion-level" life necessity, and it is simply a "thunderbolt from the blue" when it is running out of power.
Characteristics of lithium batteries
What is the charge and discharge cycle?
Take a 600 mAh lithium battery as an example. The first time it was charged from 0 mAh to 400 mAh, N mAh was used; then it was charged with 150 mAh, and then N mAh was used; finally it was charged with 100 mAh. , When the last time the battery is charged to 50 mA, a charging cycle of this battery will come. (400+150+50=600)
If a mobile phone uses half of the battery and then is fully charged, and then uses half of the battery the next day, and then fully charged, then a total of one "charge-discharge cycle" has been consumed in these two days instead of two. So you can combine your own charging habits to calculate how long your mobile phone battery can last.