If the new car is not open for a week, it is usually not necessary to start the vehicle to charge. Modern car batteries usually have a long battery life, in the case of parking for a week, the battery can usually maintain the power. However, if the parking time is longer, such as more than a month, it is recommended to start the vehicle regularly and leave the engine running for a few minutes to keep the battery charge and the engine running properly. In addition, if the vehicle is parked in an extremely low temperature environment, it may also need to be charged frequently. In general, not driving a new car for a week usually does not need to start the vehicle often to charge, but it is necessary to pay close attention to the state of the battery when parked for a long time or in extreme environments.