In general, under normal circumstances, Huawei car charger 66w has an impact on the car, but the impact is small and can not be considered. General car chargers are powered by the battery of the vehicle, so the use of car chargers will inevitably have a certain impact on the vehicle. For example, the aging capacity of the vehicle battery is insufficient, and the use of the vehicle at the time of starting may lead to start-up difficulties. Parking for a long time to use the car charger may lead to battery loss.