It is true that batteries lose capacity over time, and the more often they’re charged up, the quicker this happens. However, it’s important to realise that not all charges are the same, and the way you charge your car is a lot more important in conserving battery life than how often you charge it. What you want to avoid, if your use of the car allows, is regularly charging up to 100% and depleting the battery down to 0%. This is the quickest way to shorten the life of your battery. Instead, try only topping your battery up to around 80%, and not letting it drop below 20% before recharging if you can. It’s also worth noting that the smaller you can make this window, and the closer that window is to the middle of the scale, the healthier your battery will be ( keeping the charge between 60% and 40% will be even better, for example). Most electric cars these days come with associated smartphone apps that let you limit the amount of power the car takes on when it’s plugged in, and this should help you manage the maximum end of the scale, while keeping an eye on your instruments, not to mention sufficient journey planning, should take care of the lower end.