A charger is a device that supplies electrical energy to a battery. It is used to recharge the battery so that it can be used again. Chargers are used for a variety of devices, including cell phones, laptops, and electric vehicles.
Chargers come in a variety of shapes and sizes, and they can be used with different types of batteries. The most common type of charger is a wall charger, which plugs into an electrical outlet. Other types of chargers include car chargers, solar chargers, and portable chargers.