Not all users know about the need for monthly “training” of the mobile phone battery.
But this is a very important procedure!
It allows you to prevent one common problem associated with the device.
Many gadget owners are aware of the undesirability of completely discharging and charging the device “to the limit”.
It is better to follow the "20-80" rule: this way the battery will last much longer.
However, once a month the smartphone should still be discharged to zero, and then charged to 100%.
This is the essence of battery "training".
A device that occasionally goes through a full charge/discharge cycle will display the battery level correctly.
But if you don’t “train” the battery once a month, it’s possible that the indicator will start to “lie”.
Have you recently purchased a mobile phone? Then completely discharge it, and after 6 hours charge it to 100%.
Do the same thing the second time.
This approach will significantly reduce the likelihood of indicator error.