1. New energy vehicles can indeed charge themselves, mainly through the on-board charging system, which converts the electrical energy from household power sources or public charging stations into the electrical energy required by the vehicle's battery.
2. Car owners can use the portable charging gun that comes with the car to connect to a household 220V power outlet for charging. Although the speed is relatively slow, it is suitable for recharging after daily short trips.
For situations that require faster charging speeds, car owners can choose to go to public charging stations and use fast charging stations for charging. Fast charging technology can significantly improve charging efficiency, shorten charging time, and meet the needs of long-distance travel or emergency charging.