Battery

In computer science, a "battery" typically refers to a power storage device that supplies electrical energy to portable electronic devices, such as laptops, smartphones, and tablets. Batteries are crucial for the operation of these devices when they are not plugged into a power source.Batteries consist of one or more electrochemical cells that convert chemical energy into electrical energy through electrochemical reactions. The performance of a battery is often characterized by its capacity (measured in milliampere-hours, or mAh), voltage, recharge cycles, and overall lifespan.In software and programming, "battery" can also refer metaphorically to the concept of resource management, such as monitoring battery levels in applications or implementing power-saving features. Overall, the term "battery" directly relates to energy storage and management in electronic systems, allowing for mobility and usability of devices independent of direct power supply.