The smartphone’s battery runs out over time. How quickly this happens depends on many factors. Smartphone charging features included.
Sooner or later, any battery installed in the smartphone will run out. You can just make it as slow as possible.
To do this, you must refuse to charge the smartphone to 100%. Especially if you are using fast charging. Currently, lithium batteries are installed in mobile devices, these batteries are better not to discharge below 20% and not be charged to 100%.
It is also not recommended to charge the smartphone overnight. This is because although modern devices automatically stop charging when the charge level reaches 100%, after a while this indicator drops to 99% and starts charging again. Therefore, its battery deteriorates faster.
In addition, the device with fast charging can get very hot. And this, like strong cooling, has a bad effect on the state of the battery.