The ideal charge for a lithium-ion battery is between 20 and 80 %.
1
That the temperature affects the phone’s battery is no secret. That is why device manufacturers usually recommend charging them without the cover on so that the heat escapes properly
2
Surely on more than one occasion you have plugged the phone before going to sleep to have the battery fully charged in the morning.
3
Every time you charge your ‘smartphone’ on the computer through the USB cable you are reducing the battery life.
4
The batteries of the phones deteriorate over time. Although this is inevitable, there are a number of errors when the phone charging that can be avoided to extend the life of the battery.