1- do not overload your battery when it is discharged because the current is very high when your battery is discharged which will increase the temperature.
2- do not leave your battery discharged for a long period.
3- Unplugged unused peripherals to reduce the consumption power.
4- keep your smartphone out of hot and cold
5- turn down screen brightness
6- recharge your battery with a USB cable connected to you computer. This allows the battery to be recharged with a low current