The other thing that needs to be taken into consideration is that manufacturers state that a battery shouldn’t be regularly charged above 80% or let fall below 20% if you want to keep it in optimal condition. Therefore if you follow these guidelines for the majority of the time you use your EV you should only ever use 60% of your cars range for the majority of your driving needs.
Letting the battery drop below 20% or even below 10% is rarely cause for concern. Permanently low states of charge below 20% for long periods of time will carry the risk of total discharge. Continuous restarting a fully discharged lithim battery, will not only affect its longetivity but also the amount of charge the battery will hold. Unlike older battery technologies, lithium batteries don’t suffer from memory effect however as more sustainable battery technologies are in the works for EV’s, they may wel be affected by the memory effect.