A power adapter is a device that converts electrical energy from one form to another, allowing electronic devices to receive the appropriate voltage and current they need to operate. Commonly used with gadgets like laptops, smartphones, and tablets, power adapters ensure that these devices can be charged safely and efficiently. They typically plug into a wall outlet and connect to the device via a cable. Power adapters come in various shapes and sizes, depending on the device they are designed for. Some are compact and portable, making them easy to carry, while others are larger and meant for stationary use. Many modern power adapters also include features like overcurrent protection and short-circuit protection to enhance safety during charging.