The use of the one shot methodology in production processes in terms of reduced operational costs and savings in consumption of inputs such as demineralized water and concentrated sulfuric acid can increase the electrical capacities of batteries and their durability, and it also increases their efficiency according to their life cycles (lifespan). This research was aimed at improving the formation or charging process of lead-acid batteries for automotiv. The use of the one shot methodology in production processes in terms of reduced operational costs and savings in consumption of inputs such as demineralized water and concentrated sulfuric acid can increase the electrical capacities of batteries and their durability, and it also increases their efficiency according to their life cycles (lifespan). This research was aimed at improving the formation or charging process of lead-acid batteries for automotive use through this methodology. This is a study based on a quantitative-experimental approach, with causal relationship between independent and dependent variables, used for description, analysis and explanation of phenomena, and it is manifested through stages of measurement, observation and verification of results, in order to obtain a real picture of the performance of automotive lead-acid batteries through one shot methodologies, thus enhancing their durability in the market or when used in the automotive industry.••BatteriesOne shot and two shot methodologies”Processes are constantly changing in the world, that is, nothing remains static and everything can be perfected, even more in the organizational environment, in which the rules, laws, regulations, environment, technology and customer needs force this process or cycle of change to be more evident and acquiring a very special connotation.Countries such as China, United States, Japan, Germany and Russia are known worldwide for reporting high incomes, due to their industrial development, production and marketing of goods and value-added products, which are part of their internal consumption or export goods.Lead-acid batteries are the most commonly used, due to their low price, high recycling rate and their characteristics meeting the needs of vehicles, as long as they do not make extensive use of electricity as a direct source of energy for their propulsion, since their low density of energy storage and great weight exclude them to be used extensively by these technologies.The cell voltage of this technology ranges from 1.9 to 2.15 V, with energy densities reaching up to 70 Wh/l and a specific energy of 35 Wh/kg. There is a continuous research of new materials for internal elements of these batteries i. In this quantitative approach research, the experimentation is oriented to studies with causal relationship between independent and dependent variables, used for description, analysis and explanation of phenomena, related to depth and scope of the study.Particularly, this research explains how the several stages of measurement, observation and verification of results are used to obtain a real image of the performance of lead-acid batteries for automotive use through the one shot and two shot methodologies, and it also allowed to identify how to improve the process and operating costs in order to reduce the percentage of warranties generated by manufacturing defects in the training stage.One of the process variables that we will modify in the experimental part, is shown by [5,6]. For the battery formation with the one shot methodology, we will use a density of 1.235 ± 0.005 instead of the methodology used in two shot of 1.150 ± 0.005 and we will have a current charge of 10% keeping the same formation hours (measured considered by the results on follow ups of the same company)The samples will be collected from a battery manufacturing company, located. Charge retention or self-discharge test procedures are conducted to check the capacity and/or power after a certain storage time at increased temperatures. Due to the electrochemical processes the lead-acid battery will lose certain portion of its capacity and power capability when stored.The speed of this self-discharge depends on the temperature, the type of lead alloy, active mass recipes and impurities. These parameters are very important for the performance of the batteries. The performance parameter is valuable to check most test procedures and to make sure a vehicle can be started even after a long parking time.The Charge-acceptance is the ability of a battery to accept and store energy under given external parameters like time, temperature, state of charge, charging voltage or battery history. This parameter has become one of the key performance parameters for batteries used in vehicles with start-stop functionality or any recuperation of kinetic energy.Quite a lot of effort has been spent into developing new test procedures that do more than judge the static behavior of a battery at a certain temperature and state of charge. New dynamic approaches also take into account the charge/d.
