Battery is an essential requirement to start electrically operating equipments, especially in electrically operated vehicles. And also, in case of mains failures or interruptions in power supply, a standby or backup power is necessary for critical applications. Therefore a battery provides the necessary power to startup as well as standby depending on the type of application. Some of the applications of the batteries include automobiles, railways, airlines, defense, telecommunication, power stations, industries, and so on. The battery manufacturing process of each company has its own special technical patented and secret processes, which are not bound to be revealed to masses.Therefore, this article is intended to give a brief idea of lead acid battery manufacturing process. A lead-acid battery is commonly used in automobile applications and UPS systems. These batteries provide sufficient energy to start engines, and are maintenance free, and durable. Mainly 98 percent of these batteries are recyclable, and therefore, they minimize environmental impact while being disposed off.