A batería is a device that stores electrical energy for later use. It consists of one or more electrochemical cells that convert chemical energy into electrical energy. Batteries are commonly used in various applications, including powering electronic devices like smartphones, laptops, and electric vehicles. There are different types of batteries, such as alkaline, lithium-ion, and lead-acid, each with unique characteristics and uses. The choice of battery depends on factors like energy capacity, rechargeability, and size. Proper disposal and recycling of batteries are important to minimize environmental impact.