Batteries usually have around 500 charging cycles and each time you charge the phone from 0% to 100%, you spend a cycle, Vecernji List writes.
The more cycles you use, the worse the battery is, which is why it is recommended to change phones each two years.
It is not recommendable to leave the phone to be charged over night. Instead, charge the phone for an hour or two before you go to sleep. It is recommended for the battery to be 40-80% full.
More frequent and shorter charging periods are much more battery-friendly than charging from 0% to 100% all the time.