A phone charger is a device used to supply electrical energy to a mobile phone, allowing it to recharge its battery. Most chargers consist of a power adapter that plugs into an electrical outlet and a cable that connects to the phone. Different types of chargers exist, including wall chargers, car chargers, and portable power banks, each designed for specific charging needs. Phone chargers come with various connectors, such as USB-C, Lightning, and Micro-USB, to fit different phone models. The charging speed can vary based on the charger’s wattage and the phone’s compatibility. Using the correct charger ensures efficient and safe charging for your device.