The battery of an electric car is one of the most important components in the vehicle. It’s also one of the most expensive. Given their cost, does it make sense to buy, rent or switch them out for another one? In the vast majority of EVs, the battery is part of the car. It’s permanently installed and included in the purchase or lease price. “It has now been shown that rechargeable batteries are quite durable,” says Matthias Vogt, an expert on electromobility and vehicle technology at German motoring organization ADAC. Most manufacturers offer a warranty on batteries for up to eight years and 1…