Design of Multistage Fast Charging Strategy on Lead-Acid Batteries

Battery management system is very important for maintaining optimum battery performance and lifetime. One of the most important part of battery management system is the battery charging strategy. The conventional fast charging method combines the advantages and eliminates the disadvantage of constant current charging and constant voltage charging. In this experimental study, multistage fast charging strategy based on development of two-step charging strategy are proposed. Experimental result shows that multistage and two-step charging current followed the acceptable current curve and multistage charging strategy is 138s or 11.73% faster than faster than two- step charging strategy.