A car charger is a device that allows you to charge electronic devices, such as smartphones and tablets, while you are driving. It typically plugs into the vehicle's cigarette lighter or 12V power outlet and provides a USB port or other connectors for charging. This is especially useful for long trips or when you need to keep your devices powered on the go. Most car chargers are designed to be compact and portable, making them easy to store in your vehicle. They come in various styles and power outputs, allowing you to choose one that meets your charging needs. Some models even offer fast charging capabilities for quicker power replenishment.