The battery is the beating heart of your electric car, so you'd better take good care of it. When drivers fill up their cars with petrol or diesel, they usually think: "The fuller, the better." It's a little different for electric vehicles (EV),
as lithium batteries will last longer if you keep them charged at between 20% and 80%. While a full charge isn't ideal, it's not a disaster – as long as you don't leave your EV parked for too long on a full charge. Letting your car battery drain completely isn't a great idea, either. If this does happen, it's important to charge your car again as soon as possible. You can rest assured that your car battery has a built-in buffer of between 5% and 30% of its total capacity.